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Old 04-22-2011, 02:48 PM   #1
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Unhappy po122 and po033

i have 1996 bonneville which is reading off codes po122 and po033. wat could cause this i have already replaced the tps and did a full tune up.. and sometime from time to time the car will jus cutt off?? plz help
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Old 04-22-2011, 02:50 PM   #2
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A P0122 code means that the the car'* computer has detected that the TPS (throttle position sensor) is reporting too low a voltage. On some vehicles that lower limit is 0.17 - 0.20 volts (V).

Did you adjust it when you installed it? If the signal value is less than .17V then the PCM sets this code. Could be an open or a short to ground in the signal circuit. Or you may have lost the 5Volt reference voltage.
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Old 04-22-2011, 02:53 PM   #3
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If you removed the TPS, did you install it right? It'* very easy to get it wrong. Here'* a write up on it. It MUST be put in offset a little bit, and then turned back. https://www.gmforum.com/normal-maintainence-138/throttle-position-sensor-tps-replacement-284336/
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Old 04-22-2011, 02:53 PM   #4
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well id diont set it im a gurl n i dont know if the perso who did it did.. but would a tps cause the car to cutt off or cause the tranmission to slip
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Old 04-22-2011, 02:56 PM   #5
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Yes it can. TPS signal is used for shifting. My guess is it'* not installed right. Look at the write up. It'* very easy to do. And being a girl changes nothing. The write up walks you through everything.
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Old 04-22-2011, 03:01 PM   #6
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ok thank u one more question is it possible to reposition the present tps and have it work right or should i just purchase and new one and do it all over again??
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Old 04-22-2011, 03:03 PM   #7
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You can use the same one no need for a new one unless it got broken on the inside from being in wrong.That is unlikely though
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Old 04-22-2011, 03:04 PM   #8
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ok thanks u!!!!!!!!!!!!!!!
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Old 04-22-2011, 03:06 PM   #9
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Your welcome be sure to let us know how it goes
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Old 04-22-2011, 03:09 PM   #10
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Once you look at how it works, and what you feel when you put it in right, you will understand why it'* not working. If I'm correct, the pins on the throttle plate are not touching the tabs on the TPS. When you turn the TPS back a little you will feel the resistance and the TPS moves. So right now the TPS is at zero instead of above zero, and that'* why you have TPS low voltage.
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