After reading just about every post about 3.2's I came across a comment made by Steve Wong in 2004 about how to test the AFM using a 9V battery . You hook up the battery to terminals 3&4 and check the voltage on #2&1 . Mine read .39v , as I slowly opened the barn door there was no change in voltage until it was opened about 1/8 of an inch then it progressed up in voltage to wide open 8.3v . I loosened the screw on the wiper arm and adjusted it so that I have smooth , constant voltage rise from idle to wide open throttle , without interruption .Gretchen hasn't run this good in years !!

Here you go:

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Is this a common problem? Can the resistor strip just be completely replaced?

For our aging high mileage cars, Yes.

Unfortunately BOSCH does not offer a replacement potentiometer (that white green PCB board). Our only option is to reposition the arm so it will take a new path on the strip.

Caveat, you must be careful to make absolute certain the tension is adequate and not too much to make your new path wear out too quickly. The other thing is to check the contacts are absolutely smooth so it can glide without gouging the strip.

Yes, quite complicated to say the least.

The 9 volt with DVM test shows where it is not making a full contact ergo the fault.

Awesome !

But still, you are not doing your engine any favors by running at 2000 rpm ;)

Amen brother - shift to a lower gear and the bucking magically goes away.
Bill K

congrats but i am with Pmax..+1

3.2 problem
 

Some of these replies are simplistic to say the least. Suggesting that SF911 drives at a higher rpm than 2200 insults his intelligence and mine.

SF911 has a driveability problem that shows itself at 2200 rpm in fifth gear. The bucking and kicking is not a pleasant way to drive a Porsche and he has obviously tried numerous adjustments as suggested by interested Pelicans. I would assume he has also spent many sleepless nights trying to resolve the problem in his mind.

Thanks to those who engaged the issue in a helpful and positive way. Speaking for myself it is those engagements that make this site such an educational and rewarding reading experience.

Great to hear the problem was finally solved (by tracking a previous Steve Wong post) and the car is now running as it should at 2200 rpm and beyond.

I don't see anyone who isn't trying to be helpful here.

If you read thru the entire thread, checking the AFM was mentioned multiple times as was running at a higher engine speed.

Both are sound pieces of advice.