Smooth driver
09-20-2004, 07:39 AM
#11
Guest
Posts: n/a
Re: Smooth driver
bllsht did pass the time by typing:
> In message <otjsk0h45kps6rl3kd2ojrt37avrfnb178@4ax.com>, "Matt Osborn" wrote:
>
>> While crossing Pennsylvania last week in my 2000 TJ, I found my gas
>> cap sitting on top of my tail light when I stopped to fill up. Over
>> 100 miles at freeway speeds, the cap remained on the tail light;
>> however, the check engine light did not illuminate.
>>
>> It should have?
>
> No.
>
> The evap system monitor only runs after a cold start, and it has to fail two
> consecutive tests before the MIL is illuminated.
Hey bllsht, what sensors is that picking up? Far as I know it's a combination
of TPS, O2, and possibly MAP. I can sort of see the MAP indicating a leak against
TPS and IAC or some sort of fuel demand/O2 indicating excess fuel vapor for too
long. Never had a clear answer as to the cause though, just know aftermarket caps
are usually the cause. Any cloo?
--
DougW
> In message <otjsk0h45kps6rl3kd2ojrt37avrfnb178@4ax.com>, "Matt Osborn" wrote:
>
>> While crossing Pennsylvania last week in my 2000 TJ, I found my gas
>> cap sitting on top of my tail light when I stopped to fill up. Over
>> 100 miles at freeway speeds, the cap remained on the tail light;
>> however, the check engine light did not illuminate.
>>
>> It should have?
>
> No.
>
> The evap system monitor only runs after a cold start, and it has to fail two
> consecutive tests before the MIL is illuminated.
Hey bllsht, what sensors is that picking up? Far as I know it's a combination
of TPS, O2, and possibly MAP. I can sort of see the MAP indicating a leak against
TPS and IAC or some sort of fuel demand/O2 indicating excess fuel vapor for too
long. Never had a clear answer as to the cause though, just know aftermarket caps
are usually the cause. Any cloo?
--
DougW
09-20-2004, 07:39 AM
#12
Guest
Posts: n/a
Re: Smooth driver
bllsht did pass the time by typing:
> In message <otjsk0h45kps6rl3kd2ojrt37avrfnb178@4ax.com>, "Matt Osborn" wrote:
>
>> While crossing Pennsylvania last week in my 2000 TJ, I found my gas
>> cap sitting on top of my tail light when I stopped to fill up. Over
>> 100 miles at freeway speeds, the cap remained on the tail light;
>> however, the check engine light did not illuminate.
>>
>> It should have?
>
> No.
>
> The evap system monitor only runs after a cold start, and it has to fail two
> consecutive tests before the MIL is illuminated.
Hey bllsht, what sensors is that picking up? Far as I know it's a combination
of TPS, O2, and possibly MAP. I can sort of see the MAP indicating a leak against
TPS and IAC or some sort of fuel demand/O2 indicating excess fuel vapor for too
long. Never had a clear answer as to the cause though, just know aftermarket caps
are usually the cause. Any cloo?
--
DougW
> In message <otjsk0h45kps6rl3kd2ojrt37avrfnb178@4ax.com>, "Matt Osborn" wrote:
>
>> While crossing Pennsylvania last week in my 2000 TJ, I found my gas
>> cap sitting on top of my tail light when I stopped to fill up. Over
>> 100 miles at freeway speeds, the cap remained on the tail light;
>> however, the check engine light did not illuminate.
>>
>> It should have?
>
> No.
>
> The evap system monitor only runs after a cold start, and it has to fail two
> consecutive tests before the MIL is illuminated.
Hey bllsht, what sensors is that picking up? Far as I know it's a combination
of TPS, O2, and possibly MAP. I can sort of see the MAP indicating a leak against
TPS and IAC or some sort of fuel demand/O2 indicating excess fuel vapor for too
long. Never had a clear answer as to the cause though, just know aftermarket caps
are usually the cause. Any cloo?
--
DougW
09-20-2004, 07:39 AM
#13
Guest
Posts: n/a
Re: Smooth driver
bllsht did pass the time by typing:
> In message <otjsk0h45kps6rl3kd2ojrt37avrfnb178@4ax.com>, "Matt Osborn" wrote:
>
>> While crossing Pennsylvania last week in my 2000 TJ, I found my gas
>> cap sitting on top of my tail light when I stopped to fill up. Over
>> 100 miles at freeway speeds, the cap remained on the tail light;
>> however, the check engine light did not illuminate.
>>
>> It should have?
>
> No.
>
> The evap system monitor only runs after a cold start, and it has to fail two
> consecutive tests before the MIL is illuminated.
Hey bllsht, what sensors is that picking up? Far as I know it's a combination
of TPS, O2, and possibly MAP. I can sort of see the MAP indicating a leak against
TPS and IAC or some sort of fuel demand/O2 indicating excess fuel vapor for too
long. Never had a clear answer as to the cause though, just know aftermarket caps
are usually the cause. Any cloo?
--
DougW
> In message <otjsk0h45kps6rl3kd2ojrt37avrfnb178@4ax.com>, "Matt Osborn" wrote:
>
>> While crossing Pennsylvania last week in my 2000 TJ, I found my gas
>> cap sitting on top of my tail light when I stopped to fill up. Over
>> 100 miles at freeway speeds, the cap remained on the tail light;
>> however, the check engine light did not illuminate.
>>
>> It should have?
>
> No.
>
> The evap system monitor only runs after a cold start, and it has to fail two
> consecutive tests before the MIL is illuminated.
Hey bllsht, what sensors is that picking up? Far as I know it's a combination
of TPS, O2, and possibly MAP. I can sort of see the MAP indicating a leak against
TPS and IAC or some sort of fuel demand/O2 indicating excess fuel vapor for too
long. Never had a clear answer as to the cause though, just know aftermarket caps
are usually the cause. Any cloo?
--
DougW
09-20-2004, 05:23 PM
#14
Guest
Posts: n/a
Re: Smooth driver
On Sun, 19 Sep 2004 21:22:46 -0700, bllsht <nospam@invaliddot.net>
wrote:
>In message <otjsk0h45kps6rl3kd2ojrt37avrfnb178@4ax.com>, "Matt Osborn" wrote:
>
>>While crossing Pennsylvania last week in my 2000 TJ, I found my gas
>>cap sitting on top of my tail light when I stopped to fill up. Over
>>100 miles at freeway speeds, the cap remained on the tail light;
>>however, the check engine light did not illuminate.
>>
>>It should have?
>
>No.
>
>The evap system monitor only runs after a cold start, and it has to fail two
>consecutive tests before the MIL is illuminated.
>
Thanks. I was pretty reluctant to show up at the dealers complaining
that my check engine light wasn't on.
wrote:
>In message <otjsk0h45kps6rl3kd2ojrt37avrfnb178@4ax.com>, "Matt Osborn" wrote:
>
>>While crossing Pennsylvania last week in my 2000 TJ, I found my gas
>>cap sitting on top of my tail light when I stopped to fill up. Over
>>100 miles at freeway speeds, the cap remained on the tail light;
>>however, the check engine light did not illuminate.
>>
>>It should have?
>
>No.
>
>The evap system monitor only runs after a cold start, and it has to fail two
>consecutive tests before the MIL is illuminated.
>
Thanks. I was pretty reluctant to show up at the dealers complaining
that my check engine light wasn't on.
09-20-2004, 05:23 PM
#15
Guest
Posts: n/a
Re: Smooth driver
On Sun, 19 Sep 2004 21:22:46 -0700, bllsht <nospam@invaliddot.net>
wrote:
>In message <otjsk0h45kps6rl3kd2ojrt37avrfnb178@4ax.com>, "Matt Osborn" wrote:
>
>>While crossing Pennsylvania last week in my 2000 TJ, I found my gas
>>cap sitting on top of my tail light when I stopped to fill up. Over
>>100 miles at freeway speeds, the cap remained on the tail light;
>>however, the check engine light did not illuminate.
>>
>>It should have?
>
>No.
>
>The evap system monitor only runs after a cold start, and it has to fail two
>consecutive tests before the MIL is illuminated.
>
Thanks. I was pretty reluctant to show up at the dealers complaining
that my check engine light wasn't on.
wrote:
>In message <otjsk0h45kps6rl3kd2ojrt37avrfnb178@4ax.com>, "Matt Osborn" wrote:
>
>>While crossing Pennsylvania last week in my 2000 TJ, I found my gas
>>cap sitting on top of my tail light when I stopped to fill up. Over
>>100 miles at freeway speeds, the cap remained on the tail light;
>>however, the check engine light did not illuminate.
>>
>>It should have?
>
>No.
>
>The evap system monitor only runs after a cold start, and it has to fail two
>consecutive tests before the MIL is illuminated.
>
Thanks. I was pretty reluctant to show up at the dealers complaining
that my check engine light wasn't on.
09-20-2004, 05:23 PM
#16
Guest
Posts: n/a
Re: Smooth driver
On Sun, 19 Sep 2004 21:22:46 -0700, bllsht <nospam@invaliddot.net>
wrote:
>In message <otjsk0h45kps6rl3kd2ojrt37avrfnb178@4ax.com>, "Matt Osborn" wrote:
>
>>While crossing Pennsylvania last week in my 2000 TJ, I found my gas
>>cap sitting on top of my tail light when I stopped to fill up. Over
>>100 miles at freeway speeds, the cap remained on the tail light;
>>however, the check engine light did not illuminate.
>>
>>It should have?
>
>No.
>
>The evap system monitor only runs after a cold start, and it has to fail two
>consecutive tests before the MIL is illuminated.
>
Thanks. I was pretty reluctant to show up at the dealers complaining
that my check engine light wasn't on.
wrote:
>In message <otjsk0h45kps6rl3kd2ojrt37avrfnb178@4ax.com>, "Matt Osborn" wrote:
>
>>While crossing Pennsylvania last week in my 2000 TJ, I found my gas
>>cap sitting on top of my tail light when I stopped to fill up. Over
>>100 miles at freeway speeds, the cap remained on the tail light;
>>however, the check engine light did not illuminate.
>>
>>It should have?
>
>No.
>
>The evap system monitor only runs after a cold start, and it has to fail two
>consecutive tests before the MIL is illuminated.
>
Thanks. I was pretty reluctant to show up at the dealers complaining
that my check engine light wasn't on.
09-20-2004, 05:51 PM
#17
Guest
Posts: n/a
Re: Smooth driver
Matt wrote:
> Thanks. I was pretty reluctant to show up at the dealers complaining
> that my check engine light wasn't on.
LOL! Yeah, that'd probably be a first at your dealership.
--
__________________________________________________ _________
tw
03 TJ Rubicon - Rubicon Express 4.5"
01 XJ Sport
There is a very fine line between "hobby" and "mental illness."
-- Dave Barry
Pronunciation: 'jEp
Function: noun
Date: 1940
Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
A small general-purpose motor vehicle with 80-inch wheelbase,
1/4-ton capacity, and four-wheel drive used by the U.S. army in
World War II.
(Please remove the OBVIOUS to reply by email)
__________________________________________________ _________
> Thanks. I was pretty reluctant to show up at the dealers complaining
> that my check engine light wasn't on.
LOL! Yeah, that'd probably be a first at your dealership.
--
__________________________________________________ _________
tw
03 TJ Rubicon - Rubicon Express 4.5"
01 XJ Sport
There is a very fine line between "hobby" and "mental illness."
-- Dave Barry
Pronunciation: 'jEp
Function: noun
Date: 1940
Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
A small general-purpose motor vehicle with 80-inch wheelbase,
1/4-ton capacity, and four-wheel drive used by the U.S. army in
World War II.
(Please remove the OBVIOUS to reply by email)
__________________________________________________ _________
09-20-2004, 05:51 PM
#18
Guest
Posts: n/a
Re: Smooth driver
Matt wrote:
> Thanks. I was pretty reluctant to show up at the dealers complaining
> that my check engine light wasn't on.
LOL! Yeah, that'd probably be a first at your dealership.
--
__________________________________________________ _________
tw
03 TJ Rubicon - Rubicon Express 4.5"
01 XJ Sport
There is a very fine line between "hobby" and "mental illness."
-- Dave Barry
Pronunciation: 'jEp
Function: noun
Date: 1940
Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
A small general-purpose motor vehicle with 80-inch wheelbase,
1/4-ton capacity, and four-wheel drive used by the U.S. army in
World War II.
(Please remove the OBVIOUS to reply by email)
__________________________________________________ _________
> Thanks. I was pretty reluctant to show up at the dealers complaining
> that my check engine light wasn't on.
LOL! Yeah, that'd probably be a first at your dealership.
--
__________________________________________________ _________
tw
03 TJ Rubicon - Rubicon Express 4.5"
01 XJ Sport
There is a very fine line between "hobby" and "mental illness."
-- Dave Barry
Pronunciation: 'jEp
Function: noun
Date: 1940
Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
A small general-purpose motor vehicle with 80-inch wheelbase,
1/4-ton capacity, and four-wheel drive used by the U.S. army in
World War II.
(Please remove the OBVIOUS to reply by email)
__________________________________________________ _________
09-20-2004, 05:51 PM
#19
Guest
Posts: n/a
Re: Smooth driver
Matt wrote:
> Thanks. I was pretty reluctant to show up at the dealers complaining
> that my check engine light wasn't on.
LOL! Yeah, that'd probably be a first at your dealership.
--
__________________________________________________ _________
tw
03 TJ Rubicon - Rubicon Express 4.5"
01 XJ Sport
There is a very fine line between "hobby" and "mental illness."
-- Dave Barry
Pronunciation: 'jEp
Function: noun
Date: 1940
Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
A small general-purpose motor vehicle with 80-inch wheelbase,
1/4-ton capacity, and four-wheel drive used by the U.S. army in
World War II.
(Please remove the OBVIOUS to reply by email)
__________________________________________________ _________
> Thanks. I was pretty reluctant to show up at the dealers complaining
> that my check engine light wasn't on.
LOL! Yeah, that'd probably be a first at your dealership.
--
__________________________________________________ _________
tw
03 TJ Rubicon - Rubicon Express 4.5"
01 XJ Sport
There is a very fine line between "hobby" and "mental illness."
-- Dave Barry
Pronunciation: 'jEp
Function: noun
Date: 1940
Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
A small general-purpose motor vehicle with 80-inch wheelbase,
1/4-ton capacity, and four-wheel drive used by the U.S. army in
World War II.
(Please remove the OBVIOUS to reply by email)
__________________________________________________ _________
09-20-2004, 10:12 PM
#20
Guest
Posts: n/a
Re: Smooth driver
In message <bmz3d.47475$OZ6.16049@okepread06>, "DougW" wrote:
>bllsht did pass the time by typing:
>> In message <otjsk0h45kps6rl3kd2ojrt37avrfnb178@4ax.com>, "Matt Osborn" wrote:
>>
>>> While crossing Pennsylvania last week in my 2000 TJ, I found my gas
>>> cap sitting on top of my tail light when I stopped to fill up. Over
>>> 100 miles at freeway speeds, the cap remained on the tail light;
>>> however, the check engine light did not illuminate.
>>>
>>> It should have?
>>
>> No.
>>
>> The evap system monitor only runs after a cold start, and it has to fail two
>> consecutive tests before the MIL is illuminated.
>
>Hey bllsht, what sensors is that picking up? Far as I know it's a combination
>of TPS, O2, and possibly MAP. I can sort of see the MAP indicating a leak against
>TPS and IAC or some sort of fuel demand/O2 indicating excess fuel vapor for too
>long. Never had a clear answer as to the cause though, just know aftermarket caps
>are usually the cause. Any cloo?
To detect a leak, it only looks at one thing. The hall effect switch on the
Leak Detection Pump, aka LDP.
Operating conditions must be right to run the test, and it will look at other
sensors for that info, but they aren't used to detect leaks.
>bllsht did pass the time by typing:
>> In message <otjsk0h45kps6rl3kd2ojrt37avrfnb178@4ax.com>, "Matt Osborn" wrote:
>>
>>> While crossing Pennsylvania last week in my 2000 TJ, I found my gas
>>> cap sitting on top of my tail light when I stopped to fill up. Over
>>> 100 miles at freeway speeds, the cap remained on the tail light;
>>> however, the check engine light did not illuminate.
>>>
>>> It should have?
>>
>> No.
>>
>> The evap system monitor only runs after a cold start, and it has to fail two
>> consecutive tests before the MIL is illuminated.
>
>Hey bllsht, what sensors is that picking up? Far as I know it's a combination
>of TPS, O2, and possibly MAP. I can sort of see the MAP indicating a leak against
>TPS and IAC or some sort of fuel demand/O2 indicating excess fuel vapor for too
>long. Never had a clear answer as to the cause though, just know aftermarket caps
>are usually the cause. Any cloo?
To detect a leak, it only looks at one thing. The hall effect switch on the
Leak Detection Pump, aka LDP.
Operating conditions must be right to run the test, and it will look at other
sensors for that info, but they aren't used to detect leaks.