Beerax

I recently ditched the exhaust/cat on my NISTUNE KA24de-t, the thing is after I pulled it I didn't run the car for for more than 5 minutes 2-3 weeks so I couldn't exactly direct back to the exhaust after having issues because they are only when the car warms up. I have 2 02 sensors, one right after turbo and one further down on the down pipe, the one further down on the pipe is about a foot right before the exhaust is open. Could that maybe be throwing off that 02? Also car is idling around 10.9 - 11 AFR warm and after a few hard revs, before will stick around 12-12.4. I know 02 sensors usually don't function until car is warm which is when car gets funky, misfire under very small throttle; to eventually maybe even dying at stops unless I am giving it gas. I mean either way it wouldn't hurt to throw new 02's at it anyways, but just curious whether to try finishing the exhaust all the way through first or throw in some new 02's.

Any thoughts?

anti tyler

So what you're saying is, nothing is wrong, the AFR's are just showing lower that they were before?

I'm assuming (because you didn't say) that your 2nd sensor is just going to a wideband AFR gauge?


Please re-read this.. As it makes absolutely no fucking sense at all.

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Beerax

Lmao my bad, I'm trying to type this all out on my pos phone. What I'm trying to say only reason I'm not sure whether or not to direct back to me pulling the exhaust causing the issue is because after I DID pull it, I didn't really run the car; or if I did it was for about 5 minutes max, NOT fully warm so issues weren't occurring and RECENTLY I just started running the car, allowing it to fully warm up.. Car runs GREAT cold, no hesitation, awesome throttle response, once it gets warm - choppy idle, if I give it very Minimal gas it will hesitate/misfire very bad almost causing it to die. It will die if I am actually driving it and come to a stop without staying on the gas. Hope that makes a little more sense