[V8] New 02 sensor, all is well - or is it?
i.rautenberg at waratap.com
Mon Jun 12 12:29:09 EDT 2006
Don't dismiss the Oxygen sensor quite yet. All was good for 100
miles, eh? Then something was working. Get underneath and check the
wiring. It is VERY easy to have the wires contact the exhaust and
make the sensor useless. Please confirm. OTOH, of you have an
overly rich mixture in one or more cylinders and the OXS cannot
compensate adequately, then you may have another problem. I'd check
the OXS wiring first and then after running the engine for a while,
check all the spark plugs to see if they are all even or if one or
more indicates a too-rich condition.
On Jun 12, 2006, at 12:13 PM, Carter Johnson wrote:
> Got the new O2 sensor installed on Saturday. Reset the fault code,
> car seemed to be running well. Drove ~100 miles between then and
> today. I was getting ~23 mpg again, car running well, no smoke at
> WOT. YEAH! And then, just when I was marveling at what a
> difference that made, I smelled that raw, unburnt fuel smell. Uh
> oh....look down and the CEL comes on. Given the symptoms (same as
> before) it would appear that the O2 sensor was, in fact, not the
> Ok, now what?
> W. Carter Johnson
> SileStone/Counterfitt of RI
> Too many Audis:
> 1986 Coupe GT
> 1985 Coupe GT
> 1993 V8 Quattro
> Do You Yahoo!?
> Tired of spam? Yahoo! Mail has the best spam protection around
> Audifans V8 mailing list
> Send posts to: mailto:V8 at audifans.com
> Manage your list connection: http://www.audifans.com/mailman/
> Have an Audi V8 question? Check the Audifans Knowledgebase!
> Have a V8 answer? ... Please help others by adding to the KB ...
> all contributions welcome!
More information about the V8