some more codes

[2002_lincolnLS]

as some of you know I was having some car issues, well I hade a P0102 code so I replaced the MAF. It seemed to be okay for about a few days and its acting up again.

Car info,
2002
v-8
83,000 ~ miles
VCG's replaced no oil on any coils as of late
newer coils on 2 plugs
no vacuum leak that I can find
voltage good

I did see in my search that I can spray TB cleaner on vacuum lines and it it revs I have a leak, are there any I should avoid doing that with or any I should deffinatly try that on?

It has a jerking Idle, it will rev to about 1000 rpm normally 600.

It will also die if I shut it off and start it with in a small time period, say less than an hour. I t will start if I rev it a bit. It also starts fine in the morning.

Here are the codes I pulled this Morning,

P0175, system rich bank 2
P0172, system rich bank 1

I did a search under those two codes found a good bit of threads talking about them but no one ever found or atleast posted the solution. As far as I saw.

Other than it drives and shifts awesome plenty of power, it doesn't fall on its face or anything.


Thanks guys

 

[Bullschmidt]

Do you have an intake? I got both of those the one time my cone popped off

 

[2002_lincolnLS]

I do. do you think my filter is junk, maybe the seals are junk on the filter, I also have the MAF adapter maybe i need a new gasket for that it may be crap

 

[ChrisTheBest]

it could be, i would trace the intake piping and the cone, generally speaking at idle you wont hear any sound coming from your intake.

 

[joegr]

...I did see in my search that I can spray TB cleaner on vacuum lines and it it revs I have a leak, are there any I should avoid doing that with or any I should deffinatly try that on?...

You can safely try throttle body safe cleaner everywhere there might be an air leak. A little less messy (and almost as safely) would be to use some propane (from an unlit torch).

...It will also die if I shut it off and start it with in a small time period, say less than an hour. I t will start if I rev it a bit. It also starts fine in the morning.

Here are the codes I pulled this Morning,

P0175, system rich bank 2
P0172, system rich bank 1

...

I do think that this is an air metering problem, but I will throw out that leaky fuel injectors can also cause the symptom you list above.

 

[2002_lincolnLS]

Okay, Joe I will try the tb cleaner, don't have any propane laying around other than the grill. Maybe I'll have Hank Hill send me some....

Also by leaky injector, do you mean o-rings or the solenoid (needle) staying open longer than should be.

 

[joegr]

...or the solenoid (needle) staying open longer than should be.

That or some fuel leaking past the needle when it is closed.