[V8] The continuing saga of the check engine light (93 4.2)
grey_wolf_x at yahoo.com
Fri May 26 16:27:32 EDT 2006
that sound EXACTLY like mine about 2 weeks ago. replaced the o2 sensor, been fine every since.
mine was also smoking heavily when cold (bluish grey) that has also stopped. I wired in an o2
sensor for a 88 ford tarus 3.0.
--- Carter Johnson <carterjohnson3 at yahoo.com> wrote:
> So, after blindly assuming that the check engine light had something to do with the oil level,
> that appears to be more of a coincidence than anything else - a strange coincidence, but a
> coincidence none the less. The light was back on in force today as milage once again plummeted
> into the teens despite a recent oil change and full level. SOOOOOOO
> Off to the mechanic. Checked the code - oxygen sensor regulator, and oxygen sensor out of
> maximum adjustment (or something to that effect...). Mech thinks full pressure regulator
> sticking open, causing enrichment and oxygen sensor unable to cope. Ok, intake comes off and
> waaaaalaaaaaaa - one of the problems - the return fuel line is leaking (driver's back to
> passenger bank, the lower hose). So we pull all that appart and test the fuel pressure - dead
> on 50.5lbs at idle, 58-59 at WOT. Ok, so that's in spec. Replace the line, and light goes off.
> It's stayed off for the time being, but he's pretty sure that leaking line was NOT the cause of
> the CEL.
> Stumped again. Still thinking O2 sensor? Why am I smelling raw fuel prior to the light
> coming on then, and the sensor is attempting to correct the problem?
> W. Carter Johnson
> SileStone/Counterfitt of RI
> 401-789-3217 home
> New Yahoo! Messenger with Voice. Call regular phones from your PC and save big.
> Audifans V8 mailing list
> Send posts to: mailto:V8 at audifans.com
> Manage your list connection: http://www.audifans.com/mailman/listinfo/v8
> Have an Audi V8 question? Check the Audifans Knowledgebase!
> Have a V8 answer? ... Please help others by adding to the KB ... all contributions welcome!
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around
More information about the V8