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What causes an A4 to not Go when floored?

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Old Oct 10, 2006 | 09:12 PM
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From: Shelby Twp. Mich
Question What causes an A4 to not Go when floored?

I dunno if I need the Tuning forum or A4 forum ,but when I am going down the road in Drive and Floor it the cars doesnt wanna go,It dont kick down and move.Not throwing any codes and I checked misfires and Have none.This isnt all of the time just sometimes.what would cause this?
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Old Oct 10, 2006 | 10:29 PM
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use a scanner and look at the data stream at the tps throttle position sensor the value should change as the pedal is moved up and down , also make sure its plugged in securly though that would likley set a code but out of range might not as long as it wasnt higher or lower than max and min resistance
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Old Oct 11, 2006 | 01:17 AM
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Traction problems. *points at his stall*

Sounds almost like what happened when I accidentally bumped my throttle adjustment thingy off. I put it back on not thinking, and was stuck at 80% throttle. Car wouldn't downshift at WOT, and wouldn't go over about 5500 rpm. When I figured out what I did, I smacked myself in the head so hard, I saw stars.
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Old Oct 11, 2006 | 03:48 PM
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Originally Posted by performabuilt
use a scanner and look at the data stream at the tps throttle position sensor the value should change as the pedal is moved up and down , also make sure its plugged in securly though that would likley set a code but out of range might not as long as it wasnt higher or lower than max and min resistance
I have logged TPS and seen it at 100% when it does this.But I didnt see what the TPS Voltage was? If it reads a 100% at WOT ,does this mean the Voltage is correct or is this 2 different things?
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Old Oct 11, 2006 | 04:22 PM
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what is it a idle
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Old Oct 11, 2006 | 04:30 PM
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.59 -.6
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Old Oct 11, 2006 | 11:06 PM
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Hmm Possibly your Tranny is SLIPPING ??? hope its not tho
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Old Oct 12, 2006 | 12:53 AM
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If you floor it...and the RPM's go up but the car doesn't accelerate...then the transmission is most likely slipping.

If you floor it and the motor starts pulling but it won't downshift, there might be something wrong with the transmission kickdown (probably electronic). Downshift it manually with the shifter, if it downshifts and accelerates like normal, you've found your issue.
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