Re: Engine Hesitation on 83 Coupe

["Alan Kramer" <ackramer@hotmail.com>]

Thanks for the feedback.  A few of you suggested looking at the fuel 
pump.  Seemed simple enough, so I swapped them between my coupe and 4k.  
Sure enough, the coupe miss in the coupe gone, and the 4k misses, but 
not as bad as the coupe did!  (I guess that's probably 'cause of the 
smaller engine, or because of wiring differences...  (the coupe read 
about 11.2 V at the pump and the 4k read 11.6...))  anyway, at least 
I've solved the problem!

Thanks,
Alan

>Date: Fri, 21 Aug 1998 16:34:43 -0400
>From: Martin Pajak <quattro@rogerswave.ca>
>To: Alan Kramer <ackramer@hotmail.com>
>Subject: Re: Engine Hesitation on 83 Coupe
>
>Might be the beginning of the end of the fuel pump.
>If it get's worse or does not happen if there is fresh (cool) gas in 
it, or
>if it's noisy.
>My got so bad it got to a point I could not drive away from any stop 
lights
>yet in neutral it would rev without any problem.
>HTH
>
>Alan Kramer wrote:
>
>> Hi, I've got a 81 4k w/ 300+k miles (original owner) and a 83 Coupe
>> (180k miles) that I just 2 months ago.  The coupe was maintained very
>> well, and in good driving shape.   I've put about 1,000 miles on the 
car
>> since.  About 500 miles ago, it started to develop a miss under heavy
>> acceleration.  This was more pronounced in 4th & 5th gear than in 2nd 
or
>> 3rd, and rarely if ever happened in 1st.  The car also had to be 
warm,
>> and running 15+ minutes.  Changing the cap, rotor, wires and spark 
plugs
>> seemed to solve the problem for 250 miles.   Now it's come back...
>> Cleaned the cap & rotor, which didn't help.  Plugs still look new.  I
>> haven't pulled the injectors yet to check them, I'll probably do that
>> this weekend.  But I'm still unsure if the problem is fuel related or
>> electrical.  I cannot reproduce it at idle, or when the car is not 
under
>> load.  It won't miss under easy acceleration, just under heavy. The
>> engine's quiet, no valve noise at idle, or while driving (even when
>> missing).  No air obvious air leaks in the FI system either...  Has
>> anyone had a similar problem or any suggestions?
>>
>> Many thanks,
>> Alan Kramer
>>
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>
>
>
>--
>Martin Pajak
>
>http://www.geocities.com/MotorCity/5939
>
>1982 Audi Coupe Turbo (475,000 km)
>1982 Audi Coupe Quattro (155,000 km) Coupe with 4kq floor
>1986 Audi 4000 S Quattro (351,000 km) with 5 bolt pattern
>
>R.I.P.
>
>1980 VW Rabbit (125,000 km) school bus
>1980 VW Scirroco (silver 182,000) silver rust
>1980 VW Scirroco (95,000 km) red rust
>1983 Audi 5000 turbo (85,000 km) donor car turbo
>1983 Audi 4000 s (??? km) donor car, cut-up
>1984 Audi 4000 S Quattro (298,000 km) donor car, Ford Van
>
>C.E.O. of lastminuteallnighterrollthedice inc.
>
>
>


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