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92 AWD throwing tps code. bucking under boost

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plymouthlazer

10+ Year Contributor
31
0
Jun 14, 2012
columbus, Ohio
my car runs great cold, but when i get into boost more than a few psi while hot, it bucks violently. if i dont let it boost its fine. shortly after the buking the CEL come on. but goes away soon after. it stored code 14. i checked my tps. its reading between 4 and 1 closed, 4500ohms. between 4 and 2 closed 1200ohms. between 4 and 2 wot 5000 ohms. it sweeps smoothly between closed and open. im thinking its okay. are there any other things that would cause the code? and or bucking?

also, if i disconnect battery for 10 sec(reset ecu) it runs fine for a while
.
 
ahh figured it out. the tps was just a little out of spec i replaced it with a sensor that was closer to factory ohms. adjusted it exactly to factory and now it runs perfect. (besides the somtimes up and down idle) btw while i was in there i did the egr block, replaced my fuel filter, did the throttle body port (1g has casting ring inside) and vaccum emissions removal. loving this car more and more!
 
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