Thread: Exhaust cutout causing KR and misfiring

Originally Posted by GTPpower

Ah, ok. Maybe I missed it...what is your fueling setup?

Stock pump with a rewire kit and 42lb injectors

Originally Posted by GTPpower

Still a returnless system?

What fuel?

How much boost?

What turbo?

Yes still return less

93 octane

10 pounds at that time

BW S256 not extended tip

Originally Posted by Silver2kgtp

Hey. Was linked here to try and help.

My guess what your problem is you will need to have two seperate tunes. One for closed, one for open.

If you open the cutout, you will need to add more fuel. You are most likely leaning the car out

I ran slower with mine open because I didn't change my fueling. I kept it where it was. My mistake. Didn't have time to adjust so I just ran the rest of the day with mine closed.

.

Ok ya that's what I was figuring. Thanks