Notorious Posted April 24, 2022 Share Posted April 24, 2022 Just got the car back from the shop after finishing a hack-job flex fuel tune (car made 405whp on 17psi on E85 btw) but we stumbled into an issue where the car’s idle creeps up… They told me there were no vacuum leaks and it’s not the tune so they suspect a dirty/faulty throttle body. I was going to contact the previous owner of the engine if they had any clue about this but I doubt I’d get a response. Has anyone had any of experience with idle creep? It happens when the car is cold or warm but it seems to have been getting worse. Shop told me it would creep up to 1.5k but I’m seeing it closer to 2k now. I’m thinking I should clean the throttle body and if that doesn’t work, I’ll transplant my old throttle body off the old intake manifold. Link to comment Share on other sites More sharing options...
Notorious Posted April 24, 2022 Author Share Posted April 24, 2022 (edited) throttle body looks clean as a whistle… suddenly the idle issues doesn’t present itself when the car is warming up. I’ll see if it comes back after a couple miles Edited April 24, 2022 by Notorious Link to comment Share on other sites More sharing options...
Max Capacity Posted April 27, 2022 Share Posted April 27, 2022 Maybe it's just a "relearning thing" 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...
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