How to check TPS
#1
How to check TPS
What is the best method for checking the Throttle Position Sensor? Mine doesn't really seem to make any difference when unplugged/ plugged back in, I'm not really sure if it's supposed to though. Right now if I step on it in second around 3k or in third at all it stumbles for a second and then goes. It was also suggested to me that it might be a leaky injector? It just started doing this out of the blue, I cleaned the MAF area out today and no difference. Any advice helps, thanks.
-Jon
-Jon
#3
Originally Posted by Jon94SE
What is the best method for checking the Throttle Position Sensor? Mine doesn't really seem to make any difference when unplugged/ plugged back in, I'm not really sure if it's supposed to though. Right now if I step on it in second around 3k or in third at all it stumbles for a second and then goes. It was also suggested to me that it might be a leaky injector? It just started doing this out of the blue, I cleaned the MAF area out today and no difference. Any advice helps, thanks.
-Jon
-Jon
I'd check TPS with ohmmeter without taking it off the car - just unplug the TPS connector. It should produce smooth resistance change through the whole range between middle contact and each of the side contacts. If you notice any glitches in resistance while you manually move throttle - replace TPS. Engine should be stopped during this test.
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