Yesterday I did a little second gear pull and stopped as soon as I saw the SES light flashing and it stopped when I let off and didn't do it again. Does anyone know what this light means? Also i don't know if this is a coincidence but when I went to start my car today it was running super lean on idle like 18 afr

 

Knock

 

Tephra mod knock sensor light.

 

I was hoping that wasn't going to be the response I guess I'll do a compression test and stuff. I know just because you have knock doesn't mean you messed something up but with the way it was running today it was pretty bad

 

did you put some crappy fuel in it? make sure you don't have anything loose that could cause phantom knock either!

 

I don't think I got bad gas because it had been running pretty good before that and I hadn't gotten gas yet

 

I see that you just got your car tuned. I would get in contact with your tuner and let him know you have knock. if all else is well with the car and fuel then it might just be too much timing on the tuners part.

 

I called him today and he said it might be my fuel pump going out but I seriously have had it like 3 weeks so I'll be super bummed if it is.. when he tuned the car he said he picked up 2 counts and it was nothing but kinda scares me but I told him go conservative because it's my dd

 

is it a wally fuel pump? that would be very strange for it to go out that soon unless an error installing it occurred. I'd place my money on the tune... was this on e85 or your pump map?

 

Yeah it's a walbro pump that's why when he told me I was surprised but he did the work putting it in so if that is the pump was put in wrong he can replace it.. It is on my e85 tune I haven't ran pump gas since I got it back from him