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Resident Grouch
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I have an 04 tj. It's a 4 cyl and in the past year I have had it the throttle position sensor has gone out on it 3 times. So I'm guessing there is an underlying problem there. Any ideas anyone?
If there is much wear in the throttle shaft bushing, the slop will cause the TPS wiper contact to be off center. Check your reference voltage just to eliminate that as a possible cause. That's all I can think of. My 2000 TJ 2.5 has 150k plus on it and still running the one from when she was new.
 
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