Idle hunting/jumping

GH0ST

Well-Known Member
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Today I removed my TB, cleaned it while it was off, removed my intake manifold as well tk access alternator power wire doing a big 3 wiring upgrade, changed gaskets, put everything back properly, now my car is idle hunting in neutral mainly, tried disconnecting battery for 30+ minutes, cleaned MAF, reconnected, and went for a drive for 30-45 minutes, rpms are normal while driving on hey, but when I get into neutral the idle is still jumping from about 1200-2600 give or take, not sure what else to do, if anyone has any advice I’d appreciate it. Car 2012 Si coupe. TIA
 
I would try and idle relearn procedure. Take the pos and negative off your battery and touch the ends together. Put them back on the battery posts and start the car. Don’t touch the gas, and just let it idle for 10 min. Turn the car off/on and then take it for a drive and see if it helped.
 
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