zanzabar Posted May 15, 2014 Share Posted May 15, 2014 i had an alignment done on sunday then got the p0638 on monday. the error seams to be that the peddle sensor and throttle position sensor have a reading that is more than 0.15V off. is there a quick fix or change to the tune i can ask for? it as it seams to be reading 0.16V off when i data logged and everything else is working fine. i tried this http://forums.nasioc.com/forums/show...55&postcount=2 and here are my logs doing a pull in 2nd then 3rd https://drive.google.com/file/d/0B-_...it?usp=sharing car on but engine off https://drive.google.com/file/d/0B-_...it?usp=sharing Link to comment Share on other sites More sharing options...
Max Capacity Posted May 15, 2014 Share Posted May 15, 2014 There seems to be a few threads lately with TPS and TB issues. Look down a few threads. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
zanzabar Posted May 16, 2014 Author Share Posted May 16, 2014 that was the peddle reading low, mine is the TB reading high. and i have not found anything of a fix other than replacing the TB and wiring. Link to comment Share on other sites More sharing options...
Max Capacity Posted May 16, 2014 Share Posted May 16, 2014 All that, its not just a TPS ? sucks. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
zanzabar Posted May 24, 2014 Author Share Posted May 24, 2014 i cleaned the ground wire that connects the drivers side to the fender and have not had it come back. since i posted i expect to see it come back tomorrow. Link to comment Share on other sites More sharing options...
zanzabar Posted June 4, 2014 Author Share Posted June 4, 2014 re update, it came back so i took it back to GST (where i just had it tuned a couple months ago,) since the car worked fin cold and hot it was determined that the coolant loop that changed the car from cold to hot was not working (there is a sensor in the throttle body that controls it.) so the cel was removed from the tune and it should just idle a bit rough when warm but not up to temp. Link to comment Share on other sites More sharing options...
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