2g flashed ecu problem

[BelleauTsi]

Hi,
I just begin to tune my car with ceddymod and h8 ecu flash. I scaled my injector put in the latency. Now when i start my car wideband is reading 10.0 extra rich so i made multiple flash playing with injector to try to bring my afr and trim back to normal. Nothing work car alway idle to 10-11 afr. I log o2 sensor and it never swing between 0.1-0.9 its stay near 0.1-0.3. I have verified wiring from ecu to front o2 sensor everything ok. Is it my o2 reading always lean that make ecu to run my engine rich? by the way 02 sensor feedback trim is at 25% all the time.
Thanks!

 

[BelleauTsi]

Oh! i just see that my evoscan was loggeg temperature in Celsius. That is my mistake

 

[BelleauTsi]

I have a hard time to set my idle air fuel ratio. My low trim are -1% at idle but idle at 17 afr.
I take a took to my maf and the adjustement screw as been messed up. I should make an maf rescale or mess with that adjustment screw? Is my maf sensor can make a problem like this?

 

[Absit]

Post another log (log your wideband). If your MAF was goofy your ECU would be adding fuel until the AFRs wound up right via the front O2 sensor. If your STFT (at idle and closed loop) and LTFT-Low show negative fuel trims but your wideband is showing lean something's not working right. Did you ever calibrate your wideband? Where do you have it? Do you have any exhaust leaks before it?

 

[BelleauTsi]

Im gonna post a log tomorrow since i dont have my car and computer at home. I got one log but its to big i can't post. For my wideband, i got an Dynojet wideband and dont even know i can calibre him. But it quite new, got maybe 300mile on it. My engine idle really rough so im quite sure it really lean. And for exhaust no exhaust leak before the wideband.
As soon as i speed up the engine afr return to normal, and then i return to idle afr slowly drop to 17-18.
Thanks for your help!

EDIT: I read and read and, could vacuum leak make that problem?

 

[Absit]

It's unlikely. What concerns me is that your AFRs are lean but your ECU isn't adding fuel via STFT and LTFT-Low to compensate for a lean condition, even with a vacuum leak it should do that. Search around for your wideband to see how to calibrate it, and be sure to include it in any future logs via the rear O2 input. Also log your idle switch please.

 

[BelleauTsi]

I was looking for that idle switch but i don't see it in my list of input on evoscan. I am able to add it?
Because my tps stop to 7% when on idle, but i got full lean when in deceleration.
Yes my wideband is now hooked to rear 02 sensor that's really nice, i will search on how to calibre him
I will look at this tomorrow and post back a log
Thanks

 

[BelleauTsi]

Update, I will come with a log soon. My alternateur as died after a ride without heat shield around o2 housing I forget to reinstall it

 

[BelleauTsi]

Someone ever made the relocation of alternator with engine still in place? I just tired to burn and burn alternator. This one as only 6 mouth with my car on the road 2 week. I just have removed all the a\c
Thanks!