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the rpms jump up and down slightly. which to me is a dead give away for a bad TPS. Hooked up the voltmeter and at closed throttle its putting out 2.7 ohms and wide open between 12 and 13 ohms.
the other thing thats got me stumped is o2 sensor. when I do a bench test on the old one it worked jumping between 0 and 1 volts back and forth. but when I put it on the car and checked it. it read a constant 0.04 volts without change. I replaced it and the new one is giving me the same 0.04 volts. Am I testing it wrong???
I'm using a voltmeter. I hook the positive lead to the o2 wire then I ground off the black lead just like when I bench test. I should be getting the 0 to 1v back and forth shouldn't I?? I let the car warm up. I even hold the throttle to 2000 rpms for 2 minutes but the o2 still stays at a constant 0.04 volts.
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