TPS sensor
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Joined: Dec 2003
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From: sanger, Cali
Car: chevelle + camaro
Engine: 520hp 350 350
Transmission: th 350 700r4
Axle/Gears: 4:56 3:23
TPS sensor
i've heard of adjusting your throttle position sensor "tps'
is this true?!?! how would you go about to do it
91 Z-28 tpi 5.7
thanks
eRiC
is this true?!?! how would you go about to do it
91 Z-28 tpi 5.7
thanks
eRiC
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Joined: Jul 1999
Posts: 4,384
Likes: 2
From: Tulsa, OK
Some can, and some can't. If you have a speed-density system like TBI or late-3rdgen TPI, then you can't.
If it's adjustable, you measure the voltage on the blue wire, loosen the two torx screws on the TPS sensor, and adjust it (by turning the whole sensor) until the voltage reads .45V.
You can tell just by looking whether or not it's adjustable. The holes in the sensor will be slotted instead of round holes.
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Also, you do this at the same time you set the idle-air speed and the timing, as they all effect the idle speed.
If it's adjustable, you measure the voltage on the blue wire, loosen the two torx screws on the TPS sensor, and adjust it (by turning the whole sensor) until the voltage reads .45V.
You can tell just by looking whether or not it's adjustable. The holes in the sensor will be slotted instead of round holes.
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Also, you do this at the same time you set the idle-air speed and the timing, as they all effect the idle speed.
Last edited by Jza; Mar 26, 2006 at 04:38 PM. Reason: Automerged Doublepost
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