Which two wires to check TPS voltage?
10-25-2009, 04:15 PM
#1
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Which two wires to check TPS voltage? I used the black and white and got a constant reading of 5 volts at idle and full throttle. Is this correct? I know I'm supposed to get a 0.5 volt reading at idle and 4.7-4.9v reading at full throttle. Trying to find out why my car hesitates to/or doesn't downshift. Thanks.
10-26-2009, 09:52 PM
#4
With the key in the ignition, turned on, but not started (engine NOT running) locate the blue wire. If the probe on your voltmeter is thin enough,
you can just jab it into the back of the plug, at the blue wire, and then ground your voltmeter on the chassis somewhere. Otherwise, you can use
a small sized wire (stripped on each end) and jab it into the back of the plug, at the BLUE wire, and then just use your alligator clip from your voltmeter to get a reading. At the idle position, your reading will be about .85 volts.
gring the stop down to 4.68volts.... dont go over 4.7 volts at full throttle
you can just jab it into the back of the plug, at the blue wire, and then ground your voltmeter on the chassis somewhere. Otherwise, you can use
a small sized wire (stripped on each end) and jab it into the back of the plug, at the BLUE wire, and then just use your alligator clip from your voltmeter to get a reading. At the idle position, your reading will be about .85 volts.
gring the stop down to 4.68volts.... dont go over 4.7 volts at full throttle
