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Question regarding tune?

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Old 05-06-2009, 06:47 PM
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Guys, I was wondering if a bad tune could cause your car to throw a p0122 code. I have checked everything and I have the correct voltage to the tps and it is at 0% at idle so I know that aint the cause. The car is surging really bad and wont idle down below 1200 rpm's
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Old 05-06-2009, 07:10 PM
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nobody, anybody know?
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Old 05-06-2009, 07:31 PM
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Doubtful that a "bad tune" could do that. What is
the TPS voltage with closed throttle? And is it the
same at the PCM end of the harness?
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Old 05-06-2009, 07:41 PM
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Had it checked by my mechanic and it was the same, I think 5 volts but not sure, he said it was the same though, what issues could cause this code?
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Old 05-06-2009, 07:45 PM
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also what could cause it to surge so bad, the low tps voltage?
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Old 05-06-2009, 07:45 PM
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What should the voltage be at idle?
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