Hey guys,

I've been tuning a long time, but this is my first attempt at SD.

Just switched my USDM Evo IX to SD using Tephra v7 88591715 and I wanted someone to provide a sanity check for me.

Attached are my idle and static 3000rpm logs.

Using Omni 4bar, UEGO wiring into the ECU, and Fuel temp option on 93octane.

LTFT low ~0.5 after 10mins of idling at FOT (full operating temp)
UEGO reading rich at static 3000rpm (12.9-13.2afr)(maybe lower RPM ve?)

Uego logging via EvoScan looks to be about .2 to lean (reads 0.2 higher), so I guess I need to modify the EvoScan formula. I cannot remember if I should modify the formula by adding or subtracting 2% to the formula.

I'm sure I missed something, just ask if you need more info..

Anyway, take a look at the logs, and let me know what you think.

 

O2 feedback seems to be pulling a lot of fuel. Whats your ROM look like? Have you driven it yet?

 

Yep - actually drove it back and forth to work at wastegate pressure - Was having some stalling issues coming up to street lights...No major issues, a bit rich on spool...Didn't seem to drive as smooth as the MAF ROM, so I went back to my MAF ROM.

I wouldn't mind trying it again, any suggestions?