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Where did you purchase the tps sensor from?
Advance auto parts , but I have triied 3 total and all 3 same problem as well as original tps,
Certain vehicles you only want to use oem parts this is esp with tps sensors.
This tps generally should be around .5-.8vdc throttle closed to around 4.5vdc wot.
The fact that you have the exact opposite and even then numbers on low end are too high tells mean that the arm of the tps is in the wrong location most likely when being installed. if it allows to be mounted that way. But you should also only use an oem tps with this.
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It could be possible as well that the tps has been mounted upside down.
Ok, I just installed "New GM " oem tps sensor. $100 instead of $48 for new aftermarket. Still same ol'shit, shows 5 volts exactly at idle-(key on engine off) and 1.24 wot (key on engine off) INSTEAD OF NORMAL 1volt or less idle and 5 volts wot. What the hell Is goin on with this car? I am runnin out of money, for real. Really does anyone have the answer. Someone has got to have ran across a car with same issues and can point me in right direction without burnin up my walet.
I never told you to just replace it......
The fact that it is reading the opposite tells me the arm is either wrong when mounted or possible upside down, the sensor has a reference input say 5vdc and it works off the tps position at idle as I explained before only sends out .5-.8 and wot around 4.5vdc.
I only explained to you that an aftermarket tps should not be used and only an oem one should, I never said it was fully the problem just that it should not be used.
Please check if the arm is being moved before you install it, if being mounted upside down, or are you positive you do not have the wot and idle values mixed?
Otherwise its pretty much impossible for it to read backwards per say.
Its not upside down, wires will not reach, and I am totally aware of the voltage at idle verses wide open
Is the throttle blade being moved or the tps arm being moved during install?
Other then that the only thing I would suspect would reverse the wot/idle values would be the ecu or a problem like shorted wiring in the harness.
I switched the power ground wires at plug but left signal wire alone and it runs good, shifts good, idles good. Even drives like normal. It was hooked up black to black and gray to gray. Now its opposite at plug in only. Works fine and voltage at idle and wot are back to normal. Thanks for your assistance
That is odd to say the least.... it seems they were hooked up correctly unless someone at one time replaced the connector with a used on and spliced it in or only replaced the connector without wires remove the pins and put the pins in the wrong location.
Either way that now explains the problem on how it was reversed and I am glad the issue has been resolved.
Have a good night.