Sr20det haaalp needed inside.

[mikefc]

S13 Sr20 was running like shit. Breaking up. No power. Brought it to a friends house who has an SR that was running just fine. We tried his maf, his coilpacks, ignitor, checked for any vacuum leaks, Ecu etc. Nothing changed. His motor is using NGK bkr7e, My motor was originally using bkr6e's. Tried his plugs and bam! Car runs perfect.No breaking up or anything, just very rich. But it fouled them and wouldn't idle correctly after driving it around the block, boosting and what not and as the plugs built up with more black carbon shit. Would just surge and sputter then eventually die. We pulled the fuel rail to check for leaky injectors and nothing. Also tried his FPR (both stock). Same shit. So what should I check to find this bastard. Haven't messed with TPS yet. Could this do it? Any help is greatly appreciated.

[R33E8]

What are your afrs?

[camaro379ss]

Did this happen out of the blue or were you tinkering with it and then this happened? Do you have any mods that need to be of knowledge to help solve this?

[mikefc]

Sorry. I should have mentioned that this is a swap done over the winter. Nice weather is finally here and I just want to drive.
AFRs I have no clue.

[camaro379ss]

Is your timing correct?

[mikefc]

We checked CAS and it was fine.
Have yet to check actual timing.

[Flicktitty]

i would check your timing, and see if you can borrow someones ecu and just double check it. what are you using to "tune" the car?

[Supermini99]

Check your Throttle Positon Sensor

[mikefc]

Went out and just messed with stuff. Tested my O2 connector with a test light in all three slots and none of them lit up. So my O2 sensor is getting no power? or is this normal? Id guess not...