sr20det running rich

[hamiltonbmx]

I have a s13 with a sr20det pretty much bone stock beside a z32 maf, z32 fuel filter, and jwt ecu. Now I got the car barely running but always been running rich. Iv already replace ecu amd transfered the chip found broken bolt in back of turbo so extracted that now I cant seem to figure out this problem. The car at start up my a/f ratio will be 14.7 then 10 second later drops all the way to 11.6 even warmed up my a/f ratio stays between 12.1 to 10.0. I heard jwt ecu runs rich but really that rich?

[angel mkiv]

If I were you I'd switch back the factory maf and a "good known stock ecu" and see if that fixes it..chances are the tune isn't set for your setup.. But also check that your fuel pressure is set right and no vac leaks or anything along those lines..

[hamiltonbmx]

The ecu does have the sticker for jwt that says its for this setup but im gonna give it a try thank you

[ultimateirving]

Normally larger injectors are part of a tune, and you seem to have the stock ones. so it may or may not work for you.

[hamiltonbmx]

The tune is for 370cc injectors

[quickdiversion]

If the tune is for 370 injectors and the only upgrade you have is a z32 maf ....

Put and sr Mag back on nd stock ecu on it to see if your jwt ecu is bad, this isn't rocket science.

[hamiltonbmx]

Thats what I am trying to do no reason get on my post then copy the same exact thing someone said

[quickdiversion]

He did say it yes.
I was restating cause your still adding comments about stuff instead of trying it.
That's why I made the comment. I never said I was the only one to say it. But seriously. It shouldn't even had to have been said

[hamiltonbmx]

Well I just moved to a new area and dont know anyone with a 240 so im trying to find someone and yes I was adding on just to say that the tune is infact for 370cc injectors

[quickdiversion]

Well If it winds up not being the ecu let me know I am from NJ.

I live in Morris county which is Northern NJ. Between Sussex and Bergen counties. I do not have a spare sr ecu, so if it needs more diagnoses I can help if you aren't super far away.

[hamiltonbmx]

Yea man thanks im living in florida now if I was in new jersey finding a ecu to borrow would be easy everyone had a sr there. Since iv been living here i only seen one hatch bone stock with some older guy in it so im guessing the 240 group is not to crazy here

[quickdiversion]

Look at the part out on here in the for sale section.
There are a few people selling or SR stuff cause they are swapping up.