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Throttle Position Sensor....

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Old 03-07-06, 11:30 AM
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Question Throttle Position Sensor....

Just wondering i set my tps to 1 volt engine hot but if i stop the engine and hook the leds up no lights are lit??????? i have a competely stock motor.
Old 03-08-06, 12:58 AM
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you have to have the key on
Old 03-08-06, 09:21 AM
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Engine, Not Motor

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Don't use voltage or the light method. Use the resistance method as described in the Haynes manual. In my experience it works much better.
Old 03-08-06, 09:46 AM
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if you dont want to buy a manual or find yours.
http://fc3spro.com/TECH/HOWTO/TPS/tps.html
i used ReTeds page, worked great.
Old 03-08-06, 11:06 AM
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Put all the tps methods away for a second..... one led is supposed to be lit with engine hot, key on, because it puts a ground on the relief solenoid needed for emissions.

My tps (with key on engine hot)(BRAN NEW TPS TOO)will only turn on one led between .95v---.90v

If i set the tps at 1volt no led is lit meaning no ground on relief solenoid and bad emissions right at idle??????
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