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Old 04-25-2011, 10:22 PM
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Default trucks running rough please help!

i have a new prroblem my 2001 dodge ram 1500 it is running rough i cant get it to idle at the reccomended rpm"750" i reaplace the tpc and it ran at 1000 for a good ride then went back down to 600 what could cause this? my engine light has also been going on and off i checked the code it was p0123 and i also changed me tpc what else can i do to fix this?
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Old 04-26-2011, 12:17 AM
double0ram double0ram is offline
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this probably isnt the issue, but cleaning up the throttle body improves a rough idle
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Old 04-30-2011, 03:36 AM
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Po123 throttle positioning sensor voltage to high. Whats the voltage read on the sensor? Do you have a Multimeter? When you replaced it did your engine light go off?
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