[s-cars] Bucking 95 S6

[chris chambers]

Robert,

I had this same symptom, got weird codes and then finally got one that
led me to the problem. The maf sensor either has a bad connection at
the cable due (try cleaning it), or is bad (or failing).

My symptoms were if I acceleratted slowly it was ok, but if I got much
into boost at all it would buck around 3K and 4K rpm.

The code I got was 2224, and upon researaching
http://www.sjmautotechnik.com/ I found the following located
here:http://www.sjmautotechnik.com/trouble_shooting/20vboost.html#oboost

"I have run across a couple of 20V Turbo cars which had a 2224 code
stored inside the ECU and were getting the overboost fuel pump cutout,
even though the boost was only going up to 1.0-1.2 bar. 

In the first case this would occur only when the throttle was quickly
floored, and would not happen if the throttle was gradually opened all
the way. In the first case, it ended up being a defective MAF sensor.
In the other case it was only a poor connection at the MAF sensor. 

Try using some contact cleaner on the MAF connector and terminals, and
see if the overboost problem is eliminated." 


Hope this helps, my problem took me 6 months to find

Chris




--- RCaro900SS at aol.com wrote:

> I posted about this problem before. The car will start to buck at WOT
> at  
> approximately 3000 RPM & again at approximately 5000 RPM. I  pressure
>  checked 
> the wastegate diaphram & substituted another working MAF, and there 
> was no 
> change. I finally bought the Ross-Tech VagCom. There was one fault
> code,  00513 - 
> Engine Speed Sensor (G28) 27-10 - Implausible Signal - Intermittent.
> I  
> replaced the sensor and the problem still persists. I am still
> getting the same  
> fault code. Any thoughts out there?
>  
> Thanks,
>  
> Robert
> _______________________________________________
> S-CAR-List mailing list
> S-CAR-List at audifans.com
> http://www.audifans.com/mailman/listinfo/s-car-list
> 


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