Backfiring on '91 na S5

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May 7, 2015 | 10:33 AM

#26

Dak

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From: Sparta TN. United States

Quote:

Originally Posted by clokker

Congratulations on solving your problem and thanks for posting final results.
Gotta say though, if faced with a $500 TPS replacement cost, my next step would be an aftermarket ECU that ditches the stock part (and the AFM) for good.

I think there is a thread on here somewhere that tells how to convert to a 3rd gen one. They are a little over $200.

May 7, 2015 | 10:41 AM

#27

pfsantos

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From: YYZ

Quote:

Originally Posted by rogan

Eventhough the TPS passed the requirement in the FSM, it was bad.

Please explain. Do you mean it had open spots in the range when checking resistance?

May 7, 2015 | 04:51 PM

#28

rogan

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From: greater st. louis area

Quote:

Originally Posted by Dak

I think there is a thread on here somewhere that tells how to convert to a 3rd gen one. They are a little over $200.

I saw where it had been done, you have to get a s6 throttle body and take some bits off of it and fab them up on the S5 throttle body for it to work. I saw one guy that did it to a s4 for some reason. If I had not found the $290 one, and would have had to pay $500 for one, I would have picked up a $50 s6 throttle body off ebay and done the mod.