So who wants their ECU's "Chromed"?

[Chris@Rvengeperformance]

Thats what I thought... 0% nominal +/- 5%. The older gen 3S ecus had the fuel trims centered around 100.

So at 104% he needs to lower his injector scaling significantly.

yeah I don't know where he is seeing 104%, it won't go more than 12.5%. Must be a typo

[Goallie11]

He must just be seeing the number 104, with my Blackstealth lcd boost controller thats what it shows, only the number.

[sublime_whatigo]

I am seeing a lot of weird numbers in evoscan. .1008 is what i seen today, dont remember the exact number from before but I was converting it to look like mmcd style logger stuff.

Also bumped the idle, now getting 1 o2 to cycle a bit at idle but still rich on wideband and the other o2. Now cruise is also 13.8ish and getting very slight stumbling on wot. This is going to require a lot more messing around than everyone makes it out to be, I can throw a half ass tune on an emange blue in 5 min on any car.

[aaronatstate]

I am seeing a lot of weird numbers in evoscan. .1008 is what i seen today, dont remember the exact number from before but I was converting it to look like mmcd style logger stuff.

Also bumped the idle, now getting 1 o2 to cycle a bit at idle but still rich on wideband and the other o2. Now cruise is also 13.8ish and getting very slight stumbling on wot. This is going to require a lot more messing around than everyone makes it out to be, I can throw a half ass tune on an emange blue in 5 min on any car.

Something else is wrong. It took me all of 5 minutes to get my car running properly on the flash ECU.

[BlackStealth]

So I have an interesting one for you guys. With the little driving i've done on the car it runs great except for the idle, sticks at 13.6-13.8 wideband and o2's are pegged rich as well. So I go ahead and make a change and it holds for 10seconds and goes back to that 13.6 idle. I messed with the afr, injector sizing and scaling. I told it I had 750cc injectors (i have 560's) it all but stalls from being so lean and then it goes right back to rich after that 10seconds.

Sounds like to me your fuel pressure regulator is acting up. Perhaps your FPR hose has a significant leak, or if you're using a stock FPR & hotwired fuel pump relay this will cause idle to run excessively rich.

[Chris@Rvengeperformance]

Something else is wrong. It took me all of 5 minutes to get my car running properly on the flash ECU.

yes, I only had issues when there was something wrong with the car, when it was fixed the base tune with injector latencies and sizing from a source on the internet produced a totally driveable tune.

[sublime_whatigo]

Sorry I was drinking and frustrated. There must be an issue somewhere, fpr is an aem and working fine. What are the actual pin-outs for the o2 sensor part of the conversion? I think I have (99)71-(92)55 and 72-56, my xcel file also lists 3-55 and 4-56 for the heater crk.

[Greg E]

Maybe there is absolutely nothing wrong and you're just using the wrong evoscan XML file.

[sublime_whatigo]

Yup, paid Greg a beer to help me out. Evoscan needed a re-install, numbers showing make a lot more sense now.

[The Linchpin]

Greg flashed mine today, after a few tweaks it feels like a whole new car. I'll be making a thread about it soon, hope Greg will chime in with exact details.