Firebird

I had everything changed about 6 months ago at 60,000 miles.

"billy ray" <billy_ray@fuseSPAM.net> wrote in message
news:efeb1$440f2847$4831b233$23379@FUSE.NET...
> You can reset the computer by simply disconnecting the battery for a few
> seconds or my use of a reader. The readers are available for use at many
> auto-parts stores... some free of charge or with a small deposit.
> http://www.obd-codes.com/trouble_cod...e-detected.php
> P0301 Code - Cylinder #1 Misfire
> Technical Description
> Cylinder #1 Misfire Detected
>
> What does that mean?
> A P0301 code means that the the car's computer has detected that one of
> the engine's cylinders is not firing properly. In this case it's cylinder
> #1.
>
> Symptoms
> Symptoms may include:
> a.. the engine may be harder to start
> b.. the engine may stumble / stumble, and/or hesitate
> c.. other symptoms may also be present
> Causes
> A code P0301 may mean that one or more of the following has happened:
>
> a.. Faulty spark plug or wire
> b.. Faulty coil (pack)
> c.. Faulty oxygen sensor(s)
> d.. Faulty fuel injector
> e.. Burned exhaust valve
> f.. Faulty catalytic converter(s)
> g.. Running out of fuel
> h.. Poor compression
> i.. Defective computer
> Possible Solutions
> If there are no symptoms, the simplest thing to do is to reset the code
> and see if it comes back.
>
> If there are symptoms such as the engine is stumbling or hesitating, check
> all wiring and connectors that lead to the cylinders (i.e. spark plugs).
> Depending on how long the ignition components have been in the car, it may
> be a good idea to replace them as part of your regular maintenance
> schedule. I would suggest spark plugs, spark plug wires, distributor cap,
> and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs).
> In some cases, the catalytic converter has gone bad. If you smell rotten
> eggs in the exhaust, your cat converter needs to be replaced. I've also
> heard in other cases the problems were faulty fuel injectors.
>
>
>
>
>
>
>
>
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:440EF747.AF66622@sympatico.ca...
>> It isn't going to reset as long as something is wrong.
>>
>> I would be checking out cylinder 1 myself.....
>>
>> You don't say what you are driving, but you likely have a spark plug at
>> least in there and maybe a plug wire with a distributor cap and
>> rotor....
>>
>> Mike
>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> 88 Cherokee 235 BFG AT's
>> Canadian Off Road Trips Photos: Non members can still view!
>> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
>> (More Off Road album links at bottom of the view page)
>>
>> Firebird wrote:
>>>
>>> I got the light on the dashboard while waiting in line to exit a large
>>> parking lot. THe engine had been idling for about 5-7 minutes. Code
>>> P0301
>>> is a miss in cylinder 1, however I never felt anything and the engine
>>> runs
>>> ok to me.
>>> The light has been on the dashboard for about 3 weeks now.
>>> How should I proceed. I thought it resets itself after 40 starts.
>
>

billy ray

What all is in the 'everything" that was changes 6 months ago?

That doesn't mean one of those new components cannot be the problem now. As
with anything mass produced... occasionally a defective part gets through or
one fails early.

I think my first move would be to pull the spark plug from the #1 cylinder
and examine it carefully for signs of a misfire.

At this point you could swap it with any of the other spark plugs
(preferably #6) to see if the code moves to that cylinder or you can just
spend the $2 and buy one new plug.

If that fails you can try spraying a MIST of water around the coil rail.
sparkplug boot area while watching and listening for a spark leak. This is
best done away from shaded or dark area.


"Firebird" <erodman@nyc.rr.com> wrote in message
news:aTLPf.12281$nB6.8018@news-wrt-01.rdc-nyc.rr.com...
>I had everything changed about 6 months ago at 60,000 miles.
>
> "billy ray" <billy_ray@fuseSPAM.net> wrote in message
> news:efeb1$440f2847$4831b233$23379@FUSE.NET...
>> You can reset the computer by simply disconnecting the battery for a few
>> seconds or my use of a reader. The readers are available for use at many
>> auto-parts stores... some free of charge or with a small deposit.
>> http://www.obd-codes.com/trouble_cod...e-detected.php
>> P0301 Code - Cylinder #1 Misfire
>> Technical Description
>> Cylinder #1 Misfire Detected
>>
>> What does that mean?
>> A P0301 code means that the the car's computer has detected that one of
>> the engine's cylinders is not firing properly. In this case it's cylinder
>> #1.
>>
>> Symptoms
>> Symptoms may include:
>> a.. the engine may be harder to start
>> b.. the engine may stumble / stumble, and/or hesitate
>> c.. other symptoms may also be present
>> Causes
>> A code P0301 may mean that one or more of the following has happened:
>>
>> a.. Faulty spark plug or wire
>> b.. Faulty coil (pack)
>> c.. Faulty oxygen sensor(s)
>> d.. Faulty fuel injector
>> e.. Burned exhaust valve
>> f.. Faulty catalytic converter(s)
>> g.. Running out of fuel
>> h.. Poor compression
>> i.. Defective computer
>> Possible Solutions
>> If there are no symptoms, the simplest thing to do is to reset the code
>> and see if it comes back.
>>
>> If there are symptoms such as the engine is stumbling or hesitating,
>> check all wiring and connectors that lead to the cylinders (i.e. spark
>> plugs). Depending on how long the ignition components have been in the
>> car, it may be a good idea to replace them as part of your regular
>> maintenance schedule. I would suggest spark plugs, spark plug wires,
>> distributor cap, and rotor (if applicable). Otherwise, check the coils
>> (a.k.a. coil packs). In some cases, the catalytic converter has gone bad.
>> If you smell rotten eggs in the exhaust, your cat converter needs to be
>> replaced. I've also heard in other cases the problems were faulty fuel
>> injectors.
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> "Mike Romain" <romainm@sympatico.ca> wrote in message
>> news:440EF747.AF66622@sympatico.ca...
>>> It isn't going to reset as long as something is wrong.
>>>
>>> I would be checking out cylinder 1 myself.....
>>>
>>> You don't say what you are driving, but you likely have a spark plug at
>>> least in there and maybe a plug wire with a distributor cap and
>>> rotor....
>>>
>>> Mike
>>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>>> 88 Cherokee 235 BFG AT's
>>> Canadian Off Road Trips Photos: Non members can still view!
>>> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
>>> (More Off Road album links at bottom of the view page)
>>>
>>> Firebird wrote:
>>>>
>>>> I got the light on the dashboard while waiting in line to exit a large
>>>> parking lot. THe engine had been idling for about 5-7 minutes. Code
>>>> P0301
>>>> is a miss in cylinder 1, however I never felt anything and the engine
>>>> runs
>>>> ok to me.
>>>> The light has been on the dashboard for about 3 weeks now.
>>>> How should I proceed. I thought it resets itself after 40 starts.
>>
>>
>
>

billy ray

What all is in the 'everything" that was changes 6 months ago?

That doesn't mean one of those new components cannot be the problem now. As
with anything mass produced... occasionally a defective part gets through or
one fails early.

I think my first move would be to pull the spark plug from the #1 cylinder
and examine it carefully for signs of a misfire.

At this point you could swap it with any of the other spark plugs
(preferably #6) to see if the code moves to that cylinder or you can just
spend the $2 and buy one new plug.

If that fails you can try spraying a MIST of water around the coil rail.
sparkplug boot area while watching and listening for a spark leak. This is
best done away from shaded or dark area.


"Firebird" <erodman@nyc.rr.com> wrote in message
news:aTLPf.12281$nB6.8018@news-wrt-01.rdc-nyc.rr.com...
>I had everything changed about 6 months ago at 60,000 miles.
>
> "billy ray" <billy_ray@fuseSPAM.net> wrote in message
> news:efeb1$440f2847$4831b233$23379@FUSE.NET...
>> You can reset the computer by simply disconnecting the battery for a few
>> seconds or my use of a reader. The readers are available for use at many
>> auto-parts stores... some free of charge or with a small deposit.
>> http://www.obd-codes.com/trouble_cod...e-detected.php
>> P0301 Code - Cylinder #1 Misfire
>> Technical Description
>> Cylinder #1 Misfire Detected
>>
>> What does that mean?
>> A P0301 code means that the the car's computer has detected that one of
>> the engine's cylinders is not firing properly. In this case it's cylinder
>> #1.
>>
>> Symptoms
>> Symptoms may include:
>> a.. the engine may be harder to start
>> b.. the engine may stumble / stumble, and/or hesitate
>> c.. other symptoms may also be present
>> Causes
>> A code P0301 may mean that one or more of the following has happened:
>>
>> a.. Faulty spark plug or wire
>> b.. Faulty coil (pack)
>> c.. Faulty oxygen sensor(s)
>> d.. Faulty fuel injector
>> e.. Burned exhaust valve
>> f.. Faulty catalytic converter(s)
>> g.. Running out of fuel
>> h.. Poor compression
>> i.. Defective computer
>> Possible Solutions
>> If there are no symptoms, the simplest thing to do is to reset the code
>> and see if it comes back.
>>
>> If there are symptoms such as the engine is stumbling or hesitating,
>> check all wiring and connectors that lead to the cylinders (i.e. spark
>> plugs). Depending on how long the ignition components have been in the
>> car, it may be a good idea to replace them as part of your regular
>> maintenance schedule. I would suggest spark plugs, spark plug wires,
>> distributor cap, and rotor (if applicable). Otherwise, check the coils
>> (a.k.a. coil packs). In some cases, the catalytic converter has gone bad.
>> If you smell rotten eggs in the exhaust, your cat converter needs to be
>> replaced. I've also heard in other cases the problems were faulty fuel
>> injectors.
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> "Mike Romain" <romainm@sympatico.ca> wrote in message
>> news:440EF747.AF66622@sympatico.ca...
>>> It isn't going to reset as long as something is wrong.
>>>
>>> I would be checking out cylinder 1 myself.....
>>>
>>> You don't say what you are driving, but you likely have a spark plug at
>>> least in there and maybe a plug wire with a distributor cap and
>>> rotor....
>>>
>>> Mike
>>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>>> 88 Cherokee 235 BFG AT's
>>> Canadian Off Road Trips Photos: Non members can still view!
>>> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
>>> (More Off Road album links at bottom of the view page)
>>>
>>> Firebird wrote:
>>>>
>>>> I got the light on the dashboard while waiting in line to exit a large
>>>> parking lot. THe engine had been idling for about 5-7 minutes. Code
>>>> P0301
>>>> is a miss in cylinder 1, however I never felt anything and the engine
>>>> runs
>>>> ok to me.
>>>> The light has been on the dashboard for about 3 weeks now.
>>>> How should I proceed. I thought it resets itself after 40 starts.
>>
>>
>
>

billy ray

What all is in the 'everything" that was changes 6 months ago?

That doesn't mean one of those new components cannot be the problem now. As
with anything mass produced... occasionally a defective part gets through or
one fails early.

I think my first move would be to pull the spark plug from the #1 cylinder
and examine it carefully for signs of a misfire.

At this point you could swap it with any of the other spark plugs
(preferably #6) to see if the code moves to that cylinder or you can just
spend the $2 and buy one new plug.

If that fails you can try spraying a MIST of water around the coil rail.
sparkplug boot area while watching and listening for a spark leak. This is
best done away from shaded or dark area.


"Firebird" <erodman@nyc.rr.com> wrote in message
news:aTLPf.12281$nB6.8018@news-wrt-01.rdc-nyc.rr.com...
>I had everything changed about 6 months ago at 60,000 miles.
>
> "billy ray" <billy_ray@fuseSPAM.net> wrote in message
> news:efeb1$440f2847$4831b233$23379@FUSE.NET...
>> You can reset the computer by simply disconnecting the battery for a few
>> seconds or my use of a reader. The readers are available for use at many
>> auto-parts stores... some free of charge or with a small deposit.
>> http://www.obd-codes.com/trouble_cod...e-detected.php
>> P0301 Code - Cylinder #1 Misfire
>> Technical Description
>> Cylinder #1 Misfire Detected
>>
>> What does that mean?
>> A P0301 code means that the the car's computer has detected that one of
>> the engine's cylinders is not firing properly. In this case it's cylinder
>> #1.
>>
>> Symptoms
>> Symptoms may include:
>> a.. the engine may be harder to start
>> b.. the engine may stumble / stumble, and/or hesitate
>> c.. other symptoms may also be present
>> Causes
>> A code P0301 may mean that one or more of the following has happened:
>>
>> a.. Faulty spark plug or wire
>> b.. Faulty coil (pack)
>> c.. Faulty oxygen sensor(s)
>> d.. Faulty fuel injector
>> e.. Burned exhaust valve
>> f.. Faulty catalytic converter(s)
>> g.. Running out of fuel
>> h.. Poor compression
>> i.. Defective computer
>> Possible Solutions
>> If there are no symptoms, the simplest thing to do is to reset the code
>> and see if it comes back.
>>
>> If there are symptoms such as the engine is stumbling or hesitating,
>> check all wiring and connectors that lead to the cylinders (i.e. spark
>> plugs). Depending on how long the ignition components have been in the
>> car, it may be a good idea to replace them as part of your regular
>> maintenance schedule. I would suggest spark plugs, spark plug wires,
>> distributor cap, and rotor (if applicable). Otherwise, check the coils
>> (a.k.a. coil packs). In some cases, the catalytic converter has gone bad.
>> If you smell rotten eggs in the exhaust, your cat converter needs to be
>> replaced. I've also heard in other cases the problems were faulty fuel
>> injectors.
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> "Mike Romain" <romainm@sympatico.ca> wrote in message
>> news:440EF747.AF66622@sympatico.ca...
>>> It isn't going to reset as long as something is wrong.
>>>
>>> I would be checking out cylinder 1 myself.....
>>>
>>> You don't say what you are driving, but you likely have a spark plug at
>>> least in there and maybe a plug wire with a distributor cap and
>>> rotor....
>>>
>>> Mike
>>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>>> 88 Cherokee 235 BFG AT's
>>> Canadian Off Road Trips Photos: Non members can still view!
>>> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
>>> (More Off Road album links at bottom of the view page)
>>>
>>> Firebird wrote:
>>>>
>>>> I got the light on the dashboard while waiting in line to exit a large
>>>> parking lot. THe engine had been idling for about 5-7 minutes. Code
>>>> P0301
>>>> is a miss in cylinder 1, however I never felt anything and the engine
>>>> runs
>>>> ok to me.
>>>> The light has been on the dashboard for about 3 weeks now.
>>>> How should I proceed. I thought it resets itself after 40 starts.
>>
>>
>
>

billy ray

What all is in the 'everything" that was changes 6 months ago?

That doesn't mean one of those new components cannot be the problem now. As
with anything mass produced... occasionally a defective part gets through or
one fails early.

I think my first move would be to pull the spark plug from the #1 cylinder
and examine it carefully for signs of a misfire.

At this point you could swap it with any of the other spark plugs
(preferably #6) to see if the code moves to that cylinder or you can just
spend the $2 and buy one new plug.

If that fails you can try spraying a MIST of water around the coil rail.
sparkplug boot area while watching and listening for a spark leak. This is
best done away from shaded or dark area.


"Firebird" <erodman@nyc.rr.com> wrote in message
news:aTLPf.12281$nB6.8018@news-wrt-01.rdc-nyc.rr.com...
>I had everything changed about 6 months ago at 60,000 miles.
>
> "billy ray" <billy_ray@fuseSPAM.net> wrote in message
> news:efeb1$440f2847$4831b233$23379@FUSE.NET...
>> You can reset the computer by simply disconnecting the battery for a few
>> seconds or my use of a reader. The readers are available for use at many
>> auto-parts stores... some free of charge or with a small deposit.
>> http://www.obd-codes.com/trouble_cod...e-detected.php
>> P0301 Code - Cylinder #1 Misfire
>> Technical Description
>> Cylinder #1 Misfire Detected
>>
>> What does that mean?
>> A P0301 code means that the the car's computer has detected that one of
>> the engine's cylinders is not firing properly. In this case it's cylinder
>> #1.
>>
>> Symptoms
>> Symptoms may include:
>> a.. the engine may be harder to start
>> b.. the engine may stumble / stumble, and/or hesitate
>> c.. other symptoms may also be present
>> Causes
>> A code P0301 may mean that one or more of the following has happened:
>>
>> a.. Faulty spark plug or wire
>> b.. Faulty coil (pack)
>> c.. Faulty oxygen sensor(s)
>> d.. Faulty fuel injector
>> e.. Burned exhaust valve
>> f.. Faulty catalytic converter(s)
>> g.. Running out of fuel
>> h.. Poor compression
>> i.. Defective computer
>> Possible Solutions
>> If there are no symptoms, the simplest thing to do is to reset the code
>> and see if it comes back.
>>
>> If there are symptoms such as the engine is stumbling or hesitating,
>> check all wiring and connectors that lead to the cylinders (i.e. spark
>> plugs). Depending on how long the ignition components have been in the
>> car, it may be a good idea to replace them as part of your regular
>> maintenance schedule. I would suggest spark plugs, spark plug wires,
>> distributor cap, and rotor (if applicable). Otherwise, check the coils
>> (a.k.a. coil packs). In some cases, the catalytic converter has gone bad.
>> If you smell rotten eggs in the exhaust, your cat converter needs to be
>> replaced. I've also heard in other cases the problems were faulty fuel
>> injectors.
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> "Mike Romain" <romainm@sympatico.ca> wrote in message
>> news:440EF747.AF66622@sympatico.ca...
>>> It isn't going to reset as long as something is wrong.
>>>
>>> I would be checking out cylinder 1 myself.....
>>>
>>> You don't say what you are driving, but you likely have a spark plug at
>>> least in there and maybe a plug wire with a distributor cap and
>>> rotor....
>>>
>>> Mike
>>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>>> 88 Cherokee 235 BFG AT's
>>> Canadian Off Road Trips Photos: Non members can still view!
>>> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
>>> (More Off Road album links at bottom of the view page)
>>>
>>> Firebird wrote:
>>>>
>>>> I got the light on the dashboard while waiting in line to exit a large
>>>> parking lot. THe engine had been idling for about 5-7 minutes. Code
>>>> P0301
>>>> is a miss in cylinder 1, however I never felt anything and the engine
>>>> runs
>>>> ok to me.
>>>> The light has been on the dashboard for about 3 weeks now.
>>>> How should I proceed. I thought it resets itself after 40 starts.
>>
>>
>
>

Herb Leong

In article <TQLPf.12279$nB6.925@news-wrt-01.rdc-nyc.rr.com>,
Firebird <erodman@nyc.rr.com> wrote:

#"Herb Leong" <herb@urusei.net> wrote in message
#news:3qGdnfPjKL8uIJPZnZ2dnUVZ_vmdnZ2d@speakeasy.n et...

#> In article <kxyPf.9577$4%1.6856@news-wrt-01.rdc-nyc.rr.com>,
#> Firebird <erodman@nyc.rr.com> wrote:
#> #I got the light on the dashboard while waiting in line to exit a large
#> #parking lot. THe engine had been idling for about 5-7 minutes. Code
#> P0301
#> #is a miss in cylinder 1, however I never felt anything and the engine
#> runs
#> #ok to me.
#> #The light has been on the dashboard for about 3 weeks now.
#> #How should I proceed. I thought it resets itself after 40 starts.
#>
#> The code will reset after 40 starts with no problems. The light
#> resets sooner than that. If you light is still on, it's time to
#> check your plug and anything attached to it...
#>
#> What engine do you have?
#>
#> /herb

#I have the 6 cylinder. I think its a 4.0 ...it runs fine. It does not feel
#like its missing.

It is possible you don't feel anything because it is a in-line 6. A
missing spark would probably go unnoticed, at least for a little while
until you get problems from fuel in the exhaust. Before I had my YJ's
original 4.2 I6 replaced, I pretty much had ziltch compression on my
number 6 cylinder and I hardly noticed it unless doing 70+ on a steep
(for a freeway) incline--then it felt like I was driving my mom's '81
Honda-civic-putt-putt.

On the 4.0, the sparkplugs fire twice per cycle as 3 ignition coils are
shared by the 6 cylinders so you may want to also look at the other
sparkplug that's tied to the number 1 cylinder's sparkplug.

If you ever look at the engines that are used to demo the snake-oil
additives on late night infomercials with sand and other crud dumped
on top of the heads, it's always a I6.

You should still check your plug and anything attached to it.

/herb

Herb Leong

In article <TQLPf.12279$nB6.925@news-wrt-01.rdc-nyc.rr.com>,
Firebird <erodman@nyc.rr.com> wrote:

#"Herb Leong" <herb@urusei.net> wrote in message
#news:3qGdnfPjKL8uIJPZnZ2dnUVZ_vmdnZ2d@speakeasy.n et...

#> In article <kxyPf.9577$4%1.6856@news-wrt-01.rdc-nyc.rr.com>,
#> Firebird <erodman@nyc.rr.com> wrote:
#> #I got the light on the dashboard while waiting in line to exit a large
#> #parking lot. THe engine had been idling for about 5-7 minutes. Code
#> P0301
#> #is a miss in cylinder 1, however I never felt anything and the engine
#> runs
#> #ok to me.
#> #The light has been on the dashboard for about 3 weeks now.
#> #How should I proceed. I thought it resets itself after 40 starts.
#>
#> The code will reset after 40 starts with no problems. The light
#> resets sooner than that. If you light is still on, it's time to
#> check your plug and anything attached to it...
#>
#> What engine do you have?
#>
#> /herb

#I have the 6 cylinder. I think its a 4.0 ...it runs fine. It does not feel
#like its missing.

It is possible you don't feel anything because it is a in-line 6. A
missing spark would probably go unnoticed, at least for a little while
until you get problems from fuel in the exhaust. Before I had my YJ's
original 4.2 I6 replaced, I pretty much had ziltch compression on my
number 6 cylinder and I hardly noticed it unless doing 70+ on a steep
(for a freeway) incline--then it felt like I was driving my mom's '81
Honda-civic-putt-putt.

On the 4.0, the sparkplugs fire twice per cycle as 3 ignition coils are
shared by the 6 cylinders so you may want to also look at the other
sparkplug that's tied to the number 1 cylinder's sparkplug.

If you ever look at the engines that are used to demo the snake-oil
additives on late night infomercials with sand and other crud dumped
on top of the heads, it's always a I6.

You should still check your plug and anything attached to it.

/herb

Herb Leong

In article <TQLPf.12279$nB6.925@news-wrt-01.rdc-nyc.rr.com>,
Firebird <erodman@nyc.rr.com> wrote:

#"Herb Leong" <herb@urusei.net> wrote in message
#news:3qGdnfPjKL8uIJPZnZ2dnUVZ_vmdnZ2d@speakeasy.n et...

#> In article <kxyPf.9577$4%1.6856@news-wrt-01.rdc-nyc.rr.com>,
#> Firebird <erodman@nyc.rr.com> wrote:
#> #I got the light on the dashboard while waiting in line to exit a large
#> #parking lot. THe engine had been idling for about 5-7 minutes. Code
#> P0301
#> #is a miss in cylinder 1, however I never felt anything and the engine
#> runs
#> #ok to me.
#> #The light has been on the dashboard for about 3 weeks now.
#> #How should I proceed. I thought it resets itself after 40 starts.
#>
#> The code will reset after 40 starts with no problems. The light
#> resets sooner than that. If you light is still on, it's time to
#> check your plug and anything attached to it...
#>
#> What engine do you have?
#>
#> /herb

#I have the 6 cylinder. I think its a 4.0 ...it runs fine. It does not feel
#like its missing.

It is possible you don't feel anything because it is a in-line 6. A
missing spark would probably go unnoticed, at least for a little while
until you get problems from fuel in the exhaust. Before I had my YJ's
original 4.2 I6 replaced, I pretty much had ziltch compression on my
number 6 cylinder and I hardly noticed it unless doing 70+ on a steep
(for a freeway) incline--then it felt like I was driving my mom's '81
Honda-civic-putt-putt.

On the 4.0, the sparkplugs fire twice per cycle as 3 ignition coils are
shared by the 6 cylinders so you may want to also look at the other
sparkplug that's tied to the number 1 cylinder's sparkplug.

If you ever look at the engines that are used to demo the snake-oil
additives on late night infomercials with sand and other crud dumped
on top of the heads, it's always a I6.

You should still check your plug and anything attached to it.

/herb

Herb Leong

In article <TQLPf.12279$nB6.925@news-wrt-01.rdc-nyc.rr.com>,
Firebird <erodman@nyc.rr.com> wrote:

#"Herb Leong" <herb@urusei.net> wrote in message
#news:3qGdnfPjKL8uIJPZnZ2dnUVZ_vmdnZ2d@speakeasy.n et...

#> In article <kxyPf.9577$4%1.6856@news-wrt-01.rdc-nyc.rr.com>,
#> Firebird <erodman@nyc.rr.com> wrote:
#> #I got the light on the dashboard while waiting in line to exit a large
#> #parking lot. THe engine had been idling for about 5-7 minutes. Code
#> P0301
#> #is a miss in cylinder 1, however I never felt anything and the engine
#> runs
#> #ok to me.
#> #The light has been on the dashboard for about 3 weeks now.
#> #How should I proceed. I thought it resets itself after 40 starts.
#>
#> The code will reset after 40 starts with no problems. The light
#> resets sooner than that. If you light is still on, it's time to
#> check your plug and anything attached to it...
#>
#> What engine do you have?
#>
#> /herb

#I have the 6 cylinder. I think its a 4.0 ...it runs fine. It does not feel
#like its missing.

It is possible you don't feel anything because it is a in-line 6. A
missing spark would probably go unnoticed, at least for a little while
until you get problems from fuel in the exhaust. Before I had my YJ's
original 4.2 I6 replaced, I pretty much had ziltch compression on my
number 6 cylinder and I hardly noticed it unless doing 70+ on a steep
(for a freeway) incline--then it felt like I was driving my mom's '81
Honda-civic-putt-putt.

On the 4.0, the sparkplugs fire twice per cycle as 3 ignition coils are
shared by the 6 cylinders so you may want to also look at the other
sparkplug that's tied to the number 1 cylinder's sparkplug.

If you ever look at the engines that are used to demo the snake-oil
additives on late night infomercials with sand and other crud dumped
on top of the heads, it's always a I6.

You should still check your plug and anything attached to it.

/herb

Herb Leong

In article <6bba0$440f9d7a$4831b233$8295@FUSE.NET>,
billy ray <billy_ray@fuseSPAM.net> wrote:
#If that fails you can try spraying a MIST of water around the coil rail.
#sparkplug boot area while watching and listening for a spark leak. This is
#best done away from shaded or dark area.

Why away from shade or dark areas?

/herb