DO1023 Posted May 23 Report Share Posted May 23 Hiya all - I'm hoping someone is able to help me here. I'm trying to get my car to idle well again ( it last ran on the g4+ ) but ever since switching from the g4+ to g4X I've not been able to get a stable idle. I've since sold that ecu but If I were to plug it in now and power the car on - the idle would be great. So I'm wondering - what am I missing? I'll attach the gt4+ calibration and my current calibration. I logged for a few hours trying different thing today. What I'm really trying to iron out is getting the idle and low rpm/low load revving down so that my transmission controller (HTG GCU) can do it's learning process fully. At present if try to give the car any throttle it essentially just misfires. At idle even, it sounds as if there is a misfire. There was one point where both lambdas matched the target.. but this ' misfire ' condition persisted. While I await a smoke tester, anything stand out here? Anything I have misconfigured perhaps? I've checked for exhaust leaks, vaccum leaks etc so short of the smoke tester I'm not sure. I don't believe it's the cams as when vvt is on - they are fine and even with vvt off - this issue persists. I've compared what i could tell that's different from my G4+ map to this g4X map and i really don't see what it could be. In CL Lambda - this issue kind of switches around but one bank or the other will l basically hunt target AFR to Max/Min Clamp. IF I raise or lower the clamp ( respectively ) - the corresponding lambda sensor just hunts in that direction until it hits the new max/min. Any help would be greatly appreciated - getting a bit desperate at this point and this forum always seems to come through for me... Thank you! I still dont seem to be able to attach files over 25kb so i've put the log and cal files in this google drive with the 5/22 date.https://drive.google.com/drive/folders/1vW4s2359l4TvHrfpu_UTqQQR-OXciB3d?usp=sharing I have also tried offsetting the base cal by 360, -360, 180 and -180. The car won't even start. 0 is where base timing is set and that's where the timing light matches the mark on the crank. Quote Link to comment Share on other sites More sharing options...
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