Does anyone have any experience with these items? Will they make our cars run rich? I'm searching for the cause of my rich fuel mixture at lower RPMs. My car passes emissions at the cruising speed, but not at idle. Any thoughts?

Can a JWT ecu be reprogrammed by anyone other than JWT to support a rich fuel mixture? Just wondering if the previous owner of my car did that to make it run rich.

He told me he did something to make it run rich... he just doesn't know what the techs did that helped him out in that department. Weird stuff, I know.

Chris
94 se-r

THat sounds kinda shady man:rolleyes: Have you adjusted your TPS? If so what is it at?

I can't recall. I'll have to double check it. Can that cause a rich mixture?

YUP!;)

What if it does check out ok? Do you know if the previously mentioned items can make a car run rich even though they are working properly? Same question for the computer.