I'm an idiot....

[ryan.hess]

Well... can't say I didn't see this coming... I somehow managed to screw my ECM over good. I took all the static procedures, made sure the power was disconnected before pulling the PROM... and now it's quite dead. I loaded the original .bin into the chip, and it reads just fine, but when I put it into the car, and turn the key to "run", the fan kicks on. When I jumper the ALDL, I do *not* get a code 12... oh the horror.

[SappySE107]

That is a sign that the chip isn't right (checksum). Not sure on the code 12, never tried to get that with a bad chip.

[ryan.hess]

hahaha... now I really AM an idiot... You're absolutely right. I just borrowed this eprom burner today, and apparently I selected the right file, but I didn't select "load to buffer"... which is needed if you don't want to burn a blank chip But Mr. Jiggyfly... I have some good news! I think I fixed the stalling!! WOOHOOOOOO!

[SappySE107]

cool, so adding fuel fixed it? And the ECM isn't going crazy cutting the fuel yet I take it.

[ryan.hess]

cool, so adding fuel fixed it? And the ECM isn't going crazy cutting the fuel yet I take it.

well, I kinda bypassed the BLM a tad... I made the lowest it could go 120 (I believe), which is in essence raising idle fuel by 8%. None of the other cell's BLM's got as low as the idle one, which was at 110, the others were like 122, 119, etc. That, and raising the idle RPM 100 made it real happy. I haven't even had it dip yet, which is remarkable! That ECM-is-dead-scare scared the crap outta me though...

I should also mention, when the chip was stock, it would stall within 5 minutes of it getting up to temp... so by now, it has had 10+ opportunities to stall..

[SappySE107]

Raising the idle helps with the O2 sensor heating up as well. I dunno so much about making the BLM lower limit 120 but as long as you make sure the INT is never pegged, that is fine. I have run around with the BLM locked at 128 but that was after I tuned it pretty well and used the INT for final tuning