goinfast

hey guys, my car hasnt been running right. i have a a stumble/misfire. i just did a longtube install and the car ran great for about a week then started misfiring. i used fastbirds heated 02 harness and bosch 02s. i thought it might be the02s so i replaced them under warranty and the problem didnt go away. i changed the water temp sensor in the pump with no luck. all plugs and wires look good. so i bought a moates ALDL cable and did a scan with datamaster. my left side BPW ms is always yellow and the LTerm, STerm counts go lean when it misfires. is there a way i can share the file and someone help me diagnose the problem? i still havent had the egr tuned out could that be causing the issue?

sreve

iTrader: (3)

It sounds like an ignition miss on 1,3,5, or 7

you can post your log by changing the file ext from .uni to .txt

goinfast

i switched the file to a txt file but it says its to big. i try to compress it but it still was 168kb is there a way to make it smaller or should i do another log thats not as long.

sreve

iTrader: (3)

Pick a differnt file ext
see list

Bigtoyz

iTrader: (2)

If it ran good before you put headers on. I'm willing to bet it is a little lean. Its able to scavange the exhaust out a little better. And with a NA motor it could be taking the little fuel with it also. When you make more power you need to add more fuel. I would think the computer would make up for it if it was stock, but dont know what you have done to it. If it is modded a little bit headers could little to much for it to make up for. BLMs will only correct for so much....

goinfast

i had shortys on before and i have a madz28 tune for when it had them. here is the file.thanks for helping guys

sreve

iTrader: (3)

Trims get pretty lean w\EGR a stumble at throttle tip in is a
classic sign. You have a DTC 26 which is directly related.
Unplug the EGR solinoid that will kill the vaccum to the EGR
and drive it again.

goinfast

Egr is unhooked and blocked off. Im gonna order a new chip from mad z28. Its wierd because it drove fine for a week. Im thinking ICM. I had a code 42 but it went away.