mrtsb4
12-25-2014, 08:00 PM
So I have high idle for my 96' 240, and I had it since I got the car which was a while ago. The last owner did a motor swap from a '97 KA auto.
So the thing is that the idle is constant and not hesitating but it it kind of high at around 1400 RPM sometimes. When I start my car in the morning the idle raises to 1500-1600 RPM then drop after a while of idling. At cold weather it drops to about 1000 RPM but on a hot day, especially when I turn my A/C on it is about 1600 RPM!!!!!
I checked many things, I know that it might be caused by the AUTO ECU but it is a manual ECU just like it should be. I checked that it might be the MAF because the prev. owner put a POS oil type air filter that ruins Mass Air Flow sensors, I unplugged it but nothing changed so it's not the prob. I did the same thing with the throttle position sensor (TPS). I recently cleaned my IACV inside out but it's the same shit. :picardfp:
I did a check engine light scan because it was on but it only showed problems of Speed sensor, and EVAP.
So the thing is that the idle is constant and not hesitating but it it kind of high at around 1400 RPM sometimes. When I start my car in the morning the idle raises to 1500-1600 RPM then drop after a while of idling. At cold weather it drops to about 1000 RPM but on a hot day, especially when I turn my A/C on it is about 1600 RPM!!!!!
I checked many things, I know that it might be caused by the AUTO ECU but it is a manual ECU just like it should be. I checked that it might be the MAF because the prev. owner put a POS oil type air filter that ruins Mass Air Flow sensors, I unplugged it but nothing changed so it's not the prob. I did the same thing with the throttle position sensor (TPS). I recently cleaned my IACV inside out but it's the same shit. :picardfp:
I did a check engine light scan because it was on but it only showed problems of Speed sensor, and EVAP.