[V8] Three codes

[Ingo Rautenberg]

Please don't tell me this all happened right after you washed the engine
bay...please...

----- Original Message ----- 
From: "Coleman, David" <David.Coleman at blackrock.com>
To: <v8 at audifans.com>
Sent: Friday, August 26, 2005 9:23 AM
Subject: [V8] Three codes


> Hello All,
>
> Before I go mad w/ various part swaps, I wonder if anyone has any
> advice:
>
> My '91 5-speed has an AudiConnection 4.2 installed with the original
> unmodified 3.6 ECU -- a combination known to work with no problems
> whatsoever.  But since the install I've had a couple symptoms that occur
> sporadically, typically a rough stumbling w/ general lack of power under
> load at low rpms, and seems to clear up once past 3.5k or so.   Other
> times it will barely run, engine idle fluctuating violently, and when
> trying to get underway, protests by bucking and snorting, making any
> forward progress nigh impossible.
>
> In both/all cases, the engine seems to run quite rich.  Stinks to high
> heaven, and the tailpipe is very sooty black.  When it's in full protest
> mode, I smell raw gas while cranking, which will flood the sucker out.
> Here's how things have gone down, code-pulling-wise, over the past 50
> miles:
>
> 1)  Car runs pretty well, except under low rpm load where it sputters
> and farts --  Code:  2111 (ECU) was only code.  Replaced plugs, FPR, air
> cleaner, checked vent hoses.  Runs pert near flawless for 5-10 miles
> until low-load symptoms creep back into picture.  Gradually gets worse
> across wider RPM range until:
>
> 2)  Car in full protest mode, barely runs and is essentially undriveable
> -- Code:  2413 ("Mixture problem, runs rich or lean, vacuum leak"). .
> No crap.   Tap ISV w/ wrench, clean contacts on TPS, eyeball vent hoses
> again.  Now no start, strong fuel odor points to obvious flooding.  Pull
> back spark wires and starts up, same nasty running condition.  Pull code
> again: 2413 is gone, replaced by 2213 (ISV).   Shut down, restart, try
> to clear its throat a bit, code back to 2413.
>
> I have a 3.6 TPS I can swap on, a spare ISV of unknown condition, and a
> spare MAF sensor of unknown condition.   I can swap the parts to see
> what happens, but wonder if I should be looking at new plug wires, caps,
> etc.?   Did I miss a bad hose?  Any thoughts are welcome, otherwise I'll
> post results from parts swapping.
>
> DaveC.
>
>
>
>
>
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