2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

TPS output voltage when cold???

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Old Feb 18, 2011 | 11:12 AM
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From: Treasure coast
TPS output voltage when cold???

car: '87 TII

I would geatly appreciate if someone provides that reading @ around 60-65 deg F ambient.

I'm having trouble getting to op-temp to adjust to spec w/the re-assembled engine. I made the mistake of messing with the cold/fast idle and TPS while the upper manifold was off.
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Old Feb 18, 2011 | 11:39 AM
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From: tulsa,ok.
If you're not able to run your car you could take a pot of boiling water and pour it over the Thermowax aspect of the car and adjust the Fast Idle Cam as necessary. Then pour some more boiling water on the Thermowax after it has been set properly and then adjust the TPS to 1 volt. Not sure if this is what you're looking for.
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Old Feb 18, 2011 | 06:14 PM
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From: FORT WORTH TEXAS
Or you could remove the intercooler................then reach over to the rear of the throttle body and lift up on the screw that rests on top of the waterthermowax's piston. when you lift up............the throttle linkage goes to full closed just as if the engine was fully heated up.

Then with the TPS connector connected to the EM harness, backprobe the green/red wire (on the half of the plug that is part of the EM harness) and adjust til the digital meter reads 1vdc. Done.

You might have to keep that screw lifted up doing this. Depends
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Old Feb 18, 2011 | 08:29 PM
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From: NJ
Once the fast idle cam is moved, use a screwdriver to hold iit, then proceed with the adjustment.
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Old Feb 19, 2011 | 10:18 PM
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From: Treasure coast
thx all!
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