Stu Jones Posted November 3, 2014 Report Share Posted November 3, 2014 Hi guys, I'm having a bit of trouble getting idle speed controI to work nicelyÂ on a couple of blacktop 4age engines I'm currently working on.Â One is running a G4 storm and the other is a G3 upgraded to G4 firmware. Both are running the stock inlet manifold with the factory 3 wire idle control solenoid and have the same symptoms.Â I can get the idle up to work nicely when the engine is cold/warming up with raised idle rpm, but when the engine is hot I can't get the idle to stabilize and I'm experiencing fluctuations in the idle.Â In the case of the G3 upgraded car, when it was running as a G3 the idle was fine so I have copied the idle settings over to the G4 software but can't seem to get the idle to stabilise.Â Originally it was running open loopÂ so I did try closed loop but scratching my head a bit as the idle seems to slowly increase then drop back, stumble then regain.Â Any pointers? Thanks Stu Quote Link to comment Share on other sites More sharing options...
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