Cleaned Throttle Body and now Idle Hunt, ECU Reflash or New TBs? - Page 3 - G35Driver

Feb 10, 2020 | 11:15 AM

#31

cleric670

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Joined: May 2017

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From: Washington State

Coupe 6MT Premium RAS

Your voltage should be about 14.5 when running, this could be the problem. Test with a digital multimeter.

Feb 14, 2022 | 07:19 AM

#32

maryjane0426196

Registered User

Joined: Feb 2022

Posts: 2

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2005 g35 coupe

Cleaned throotle body now idle hunt

Quote:

Originally Posted by esotericrider

So I cleaned the throttle bodies while installing an intake and read the DIY.

I read the DIY thread and did not disconnect the battery or the connector to the TB. I was opening up the flaps and cleaning it real good. Turned the car on and it started reving high, then when the car is all warmed up it revs by itself from 1000-2000 RPM (idle hunt). Tried the relearn procedures and even bought an computer to do the Idle Air Vol Relearn but no luck. I have read on a few threads online that some believe the ECU in the 2007 model is a little off so when the throttle body has not been cleaned for awhile and then you clean it, the idle air volume will be off by more than 5% and cause the throttle body to be out of range to relearn the procedures (hence the idle hunt). Some advised to get the ECU flashed to the latest version which I think is Version C? and that this will solve my issue. Others advise just buying new throttle body and go from there.

Has there been a fix yet? reflash at the dealership costs $180 and new set of tb cost $300

if u used any kind of cleaner to clean the throotle body that leaves a residue behind thats why the idle is wakey its burning off the residue from the cleaner and making the idle jumpy this is why i recommend using 91 percent rubbing achoul to clean pelnum and throttle body it drys clean ,fast,and leaves no residue to burn off ,no need to spend any money at dealeship or have anything reflashed ,clean it all again with rubbing achoul and let it dry and then reinstall ,u will espically have this issue that your having if u didnt take pelnum and throotle body completely off to clean it if u just sprayed cleaner into the plenum while trying to clean the throotle body then u will get this jumpy idle everytime till it all burns off