EE open loop idle

[steveo]

my maf table def is all one table, I had the same idea, but; unfortunately tunerpro wont zoom in a 2d graph...? so its useless without a monster monitor..

have suggested zoom on the tp forum

[steveo]

i have to report back and say that this PE trick was sketchy in my case. i dialed in correct target AFRs by using both the rpm and coolant table. the first few runs were great, right from cold start on a freezing cold day to hot idle, with no drivability problems and some good clean datalogs, and i got the target AFR i wanted. of course i also patched in the blm locker.

it started misbehaving, though. on a cold morning, it would start perfectly, then immediately surge a few times and die.

i waited a while, tried to start it again, and it was good to go.

then it happened again.

i've gone back to CL idle and nothing has happened since, so i don't think it's a mechanical issue.

weird stuff, but i'd hold off if anyone wants to try it until i investigate more.

i will look into 'why' when i get another spare PCM, i think im running on borrowed time on this one, since i'm thousands of flashes in.... i dont want my daily driver to fail a flash without a backup.

[EagleMark]

Maybe a little more air over throttle blades to lesson IAC counts?

[steveo]

I dunno I had 28 with pe idle and 35 without, which seems about right

[steveo]

i'll defintely try again when i get a spare ecm; i never managed to get a log of it dying, i had to get home so i just flashed the damn thing back to CL and gave up.

[EagleMark]

Sounds like it's happening way before it enters CL? So that's not the issue...

Could it be a timing jump or? When the ICM goes from Bypass to ECM control?