sr20det issue

[nurvcom]

ok my sr20det is fresh swap and miss at idle and sometime after driving it will high idle

doent die or surge idle

check plugs and replaced new NGK gapped to spec
checked coils they good
no boost leaks
doent miss or brake up when driving or under load
harness is brand new (when i got the motor i orders new so it would be plug and play and no issues
I got 3 mafs all good no difference


what some other things I can check to fix this

[fufanu180]

Check your maf wiring and also lock it into timing mode and raise the idle to 750 on the iacv.


CenTex240

[nurvcom]

Check your maf wiring and also lock it into timing mode and raise the idle to 750 on the iacv.


CenTex240


engine harness is all good it premade for swap

how do i get sr into that mode ..

[fufanu180]

Google st20det timing mode. It's something like unplugging the tps, reving the engine to 3k 3 times and I think that's it. The ecu locks into base idle mode that way you can adjust the idle without the ecu trying to compensate for the change in idle air passing through.


CenTex240

[nurvcom]

OO and another thing my sr doing is it will start smoking during driving then stop ... i got into Burgerking and was almost done got my food and car was smoking till i pulled away and didnt smoke anymore

[AutechKouki]

Clean iacv?
Coolant lines are hooked up to iacv?
Mine had an issue where idle would stay high, and after driving around for a bit it would drop down. Found out coolant lines weren't hooked up to IACV -__-

But like someone above me stated you should try to reset tps. And don't forget about idle adjustment screw, right by throttle pulley.

[fufanu180]

Sounds like turbo seals. Stock turbo?


CenTex240

[nurvcom]

Sounds like turbo seals. Stock turbo?


CenTex240


YEP stock turbo and since the burgerking event of smoke today 9-4-12 it did the white smoke for 40sec as i pulled into work and then stopped ....

[OutlawLui]

.....i bet its going to be a small thing

[brndck]

white smoke is an indicator that you're burning coolant.

[nurvcom]

white smoke is an indicator that you're burning coolant.


when it start to smoke motor doesn't act any different so i think turbo need rebuilt

[brndck]

Pull your inlet and outlet piping on the turbo and check for oil inside the pipes. That's usually a pretty good indicator of blown seals.