[V8] Fault code 2341

[DasWolfen at aol.com]

In a message dated 4/14/05 10:59:10 PM Eastern Daylight Time, 
pdlord at talent.com.au writes:

> Hey guys, an excellent V8 resource. Very much appreciated when you're on 
> the 
> other side of the world (Australia) where there are VERY few V8s!

 I hear V8's do an excellent job of driving upside down ;)

> 
> My 1990 3.6 auto has pretty high fuel consumption (about 12mpg around town), 
> 
> has smoky exhaust haze (a grey colour, does not smell like oil, seems a 
> pretty 
> consistant volume from idle to redline) most noticable when the engine is 
> warm 
> (though noticed a black pool of moisture on the ground under exhaust when 
> idled 
> cold)and occasional slight hestitation accelerating off-idle.

 Classic O2 sensor failure.

> 
> Thanks to this site, made a test light, pulled the 2341 code. So it could be 
> 
> several things, but how can you individually test the FPR and 02 sensor? 
> (one 
> of these is the most likely culprit, I reckon).
> 
> Compression test done recently, all at 190-200psi, fuel filter replaced 
> 6mths/3000miles ago by previous owner. Fuel pump is noisy, will check filter 
> 
> screen but over rather than underfuelling seems to be the problem.
> 
> Okay, my plan was check connections to 02 sensor and FPR, but are there set 
> values you can check with a mulimeter to see if the component is functioning 
> 
> properly?

 Let the car do your testing. Unplug the O2 sensor signal lead....black 
wire/singal spade connection under the left dizzy. If the problems disappear you've 
found your culprit. It's not likely to be the FPR with your symptoms anyway 
unless you have a pretty major vacumn leak...in which case you'd have several 
more codes.

 V8's are very sensitive to O2 issues. Due to the simplistic operation of the 
V8's computer control the O2 sensor has a dramatic effect on fueling, much 
higher than any other car I've ever seen.

> 
> I have a Bentley for my 1992 Passat GL16v, which I have been using for the 
> V8 
> as a diagnostic (systems are similar) but obviously it has limitations. 
> Anyone 
> know of a GOOD manual for the V8?

 www.alldatadiy.com has a good online manual for left hand steer V8's, most 
of the info would be applicable. 24.95 USD for the first years subscription, 
renewals and additional subscriptions are 14.95 USD.