Re: '04 running rich
05-23-2007, 12:09 PM
#1
Guest
Posts: n/a
Re: '04 running rich
On May 23, 6:24 am, philthy <dbri...@cac.net> wrote:
> 02 sensors and map sensors come to mind first
>
>
>
> kevin.do...@ns.sympatico.ca wrote:
> > For those of you who like diagnosing strange problems I have a doozy
> > for you.
>
> > The symptoms are as follows: Very rich smelling exhaust, inside of
> > tailpipe VERY thickly coated with soot, badly carboned plugs.
>
> > I have checked the following: Manifold vacuum (20 ish in/Hg at idle in
> > gear), done an aceytelene test around the intake and throttle-body
> > gaskets/assemblys. The OBD system reports NO PROBLEMS, the mpg figures
> > are all over the map over the past 2 months I have gotten from 14 to
> > 33! mpg using the same brand/grade of fuel driving the same routes
> > every week. I have made NO changes to the vehicle WHAT SO EVER.
>
> > This has me stumped.
>
> > How about you.- Hide quoted text -
>
> - Show quoted text -
Get a gauge on the fuel rail (assuming your year has provisions for
this) and ensure that the supply/return paths are up to snuff.
On the other hand, if mine ever turned out 33 mpg, I'd let it do
whatever the hell it wants....
Jon
> 02 sensors and map sensors come to mind first
>
>
>
> kevin.do...@ns.sympatico.ca wrote:
> > For those of you who like diagnosing strange problems I have a doozy
> > for you.
>
> > The symptoms are as follows: Very rich smelling exhaust, inside of
> > tailpipe VERY thickly coated with soot, badly carboned plugs.
>
> > I have checked the following: Manifold vacuum (20 ish in/Hg at idle in
> > gear), done an aceytelene test around the intake and throttle-body
> > gaskets/assemblys. The OBD system reports NO PROBLEMS, the mpg figures
> > are all over the map over the past 2 months I have gotten from 14 to
> > 33! mpg using the same brand/grade of fuel driving the same routes
> > every week. I have made NO changes to the vehicle WHAT SO EVER.
>
> > This has me stumped.
>
> > How about you.- Hide quoted text -
>
> - Show quoted text -
Get a gauge on the fuel rail (assuming your year has provisions for
this) and ensure that the supply/return paths are up to snuff.
On the other hand, if mine ever turned out 33 mpg, I'd let it do
whatever the hell it wants....
Jon
05-23-2007, 02:24 PM
#2
Guest
Posts: n/a
Re: '04 running rich
"Jon" <jongoddard@gmail.com> wrote in message
news:1179936573.399407.58460@u30g2000hsc.googlegro ups.com...
> On May 23, 6:24 am, philthy <dbri...@cac.net> wrote:
>> 02 sensors and map sensors come to mind first
>>
>>
>>
>> kevin.do...@ns.sympatico.ca wrote:
>> > For those of you who like diagnosing strange problems I have a doozy
>> > for you.
>>
>> > The symptoms are as follows: Very rich smelling exhaust, inside of
>> > tailpipe VERY thickly coated with soot, badly carboned plugs.
>>
>> > I have checked the following: Manifold vacuum (20 ish in/Hg at idle in
>> > gear), done an aceytelene test around the intake and throttle-body
>> > gaskets/assemblys. The OBD system reports NO PROBLEMS, the mpg figures
>> > are all over the map over the past 2 months I have gotten from 14 to
>> > 33! mpg using the same brand/grade of fuel driving the same routes
>> > every week. I have made NO changes to the vehicle WHAT SO EVER.
>>
>> > This has me stumped.
>>
>> > How about you.- Hide quoted text -
>>
>> - Show quoted text -
>
> Get a gauge on the fuel rail (assuming your year has provisions for
> this) and ensure that the supply/return paths are up to snuff.
>
> On the other hand, if mine ever turned out 33 mpg, I'd let it do
> whatever the hell it wants....
And, it clearly would not be running rich if it delivered 33mpg.
05-23-2007, 02:24 PM
#3
Guest
Posts: n/a
Re: '04 running rich
"Jon" <jongoddard@gmail.com> wrote in message
news:1179936573.399407.58460@u30g2000hsc.googlegro ups.com...
> On May 23, 6:24 am, philthy <dbri...@cac.net> wrote:
>> 02 sensors and map sensors come to mind first
>>
>>
>>
>> kevin.do...@ns.sympatico.ca wrote:
>> > For those of you who like diagnosing strange problems I have a doozy
>> > for you.
>>
>> > The symptoms are as follows: Very rich smelling exhaust, inside of
>> > tailpipe VERY thickly coated with soot, badly carboned plugs.
>>
>> > I have checked the following: Manifold vacuum (20 ish in/Hg at idle in
>> > gear), done an aceytelene test around the intake and throttle-body
>> > gaskets/assemblys. The OBD system reports NO PROBLEMS, the mpg figures
>> > are all over the map over the past 2 months I have gotten from 14 to
>> > 33! mpg using the same brand/grade of fuel driving the same routes
>> > every week. I have made NO changes to the vehicle WHAT SO EVER.
>>
>> > This has me stumped.
>>
>> > How about you.- Hide quoted text -
>>
>> - Show quoted text -
>
> Get a gauge on the fuel rail (assuming your year has provisions for
> this) and ensure that the supply/return paths are up to snuff.
>
> On the other hand, if mine ever turned out 33 mpg, I'd let it do
> whatever the hell it wants....
And, it clearly would not be running rich if it delivered 33mpg.
05-23-2007, 02:24 PM
#4
Guest
Posts: n/a
Re: '04 running rich
"Jon" <jongoddard@gmail.com> wrote in message
news:1179936573.399407.58460@u30g2000hsc.googlegro ups.com...
> On May 23, 6:24 am, philthy <dbri...@cac.net> wrote:
>> 02 sensors and map sensors come to mind first
>>
>>
>>
>> kevin.do...@ns.sympatico.ca wrote:
>> > For those of you who like diagnosing strange problems I have a doozy
>> > for you.
>>
>> > The symptoms are as follows: Very rich smelling exhaust, inside of
>> > tailpipe VERY thickly coated with soot, badly carboned plugs.
>>
>> > I have checked the following: Manifold vacuum (20 ish in/Hg at idle in
>> > gear), done an aceytelene test around the intake and throttle-body
>> > gaskets/assemblys. The OBD system reports NO PROBLEMS, the mpg figures
>> > are all over the map over the past 2 months I have gotten from 14 to
>> > 33! mpg using the same brand/grade of fuel driving the same routes
>> > every week. I have made NO changes to the vehicle WHAT SO EVER.
>>
>> > This has me stumped.
>>
>> > How about you.- Hide quoted text -
>>
>> - Show quoted text -
>
> Get a gauge on the fuel rail (assuming your year has provisions for
> this) and ensure that the supply/return paths are up to snuff.
>
> On the other hand, if mine ever turned out 33 mpg, I'd let it do
> whatever the hell it wants....
And, it clearly would not be running rich if it delivered 33mpg.
05-23-2007, 02:24 PM
#5
Guest
Posts: n/a
Re: '04 running rich
"Jon" <jongoddard@gmail.com> wrote in message
news:1179936573.399407.58460@u30g2000hsc.googlegro ups.com...
> On May 23, 6:24 am, philthy <dbri...@cac.net> wrote:
>> 02 sensors and map sensors come to mind first
>>
>>
>>
>> kevin.do...@ns.sympatico.ca wrote:
>> > For those of you who like diagnosing strange problems I have a doozy
>> > for you.
>>
>> > The symptoms are as follows: Very rich smelling exhaust, inside of
>> > tailpipe VERY thickly coated with soot, badly carboned plugs.
>>
>> > I have checked the following: Manifold vacuum (20 ish in/Hg at idle in
>> > gear), done an aceytelene test around the intake and throttle-body
>> > gaskets/assemblys. The OBD system reports NO PROBLEMS, the mpg figures
>> > are all over the map over the past 2 months I have gotten from 14 to
>> > 33! mpg using the same brand/grade of fuel driving the same routes
>> > every week. I have made NO changes to the vehicle WHAT SO EVER.
>>
>> > This has me stumped.
>>
>> > How about you.- Hide quoted text -
>>
>> - Show quoted text -
>
> Get a gauge on the fuel rail (assuming your year has provisions for
> this) and ensure that the supply/return paths are up to snuff.
>
> On the other hand, if mine ever turned out 33 mpg, I'd let it do
> whatever the hell it wants....
And, it clearly would not be running rich if it delivered 33mpg.
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