LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Run/idle problem

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Old 07-01-2012, 06:54 PM
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Default Run/idle problem

I have a 96 Trans am and the check engine light is on for a po122 which is a low throttle position sensor low voltage but when I give it gas it feels like it falls on it face first then the throttle goes up. But when I unplug the mass air flow sensor it idles better and when I give it gas there is no hesitation at all. Could the be a bad tips sensor or mass air flow sensor? I change out the throttle body cuz the old was was bad so the use one I got came with all the sensor on it. But I use the tps sensor that was on my old throttle body and the light is still on after clearing it. Any idea on what it could be?
Old 07-01-2012, 07:40 PM
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Have you checked your voltage on the light blue wire of the TPS with the key on, engine off? Should be between .23v and .9v.




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