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Issues with Procomp electronics Throttle body

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Old Oct 2, 2013 | 08:22 PM
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Default Issues with Procomp electronics Throttle body

I believe its a 90mm TB. Truck drives and everything but If you floor it the TPS hits 100% TPS and then Reads 0% and the truck turns off.

What we are working with:
368 lq4 based motor
238/240 Cam
TBSS intake
95 Chevrolet silverado SWB


The truck drives fine and everything and I can assure it isn't the TPS sensor because It's a brand new sensor. and read fine on the old 3 bolt throttle body.

Another issue is that once this happens, The tps will read 18% with the blade closed. the Throttle body also seems to stick at random percentages.

does anyone here have one of these throttle bodies? Seems cheaply made and the IAC doesn't mount flush. I'm going to try to modify it so it doesn't go in **** eyed.
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Old Oct 3, 2013 | 09:39 PM
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anyone?
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Old Oct 7, 2013 | 05:28 PM
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Maybe the TPS is adjusted wrong.
Just a thought. Good Luck!

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Old Oct 7, 2013 | 11:06 PM
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Sounds like a tps problem to me. Even if the blade was sticking it wouldn't cause crazy readings. Try a tps reset
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Old Oct 9, 2013 | 01:33 PM
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tried TPS reset, We put a fast 92 from a friend on the truck and it doesn't keep the throttle open anymore. Im going to assume the return spring in this cheap TB is junk
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