New to forum with fresh tbi install.

[damanx]

So I found ONE and only ONE 1227747 ecm. It has the AKMJ prom in it. Specs on that chip is:

Options:

With LB4 4.3L GAS (4.3Z) V6

With MD8 AUTO 4 SPD THM 700 R4

With NB2 CALIFORNIA REQUIREMENTS

I suppose the california emissions programming might be an issue?

Can the proms from a 1228062 be used in it? I have an ATBA prom and an AMRW prom.

I know that eventually, I'll have the prom reader and can go from there.

[EagleMark]

I've only done limited testing on mixing proms and ecms long ago and it was not good. SInce then I have a stack of ECMs that just plug into my 1227747 harness...

[damanx]

So I've backed off the timing to 6 degrees and the pinging has almost disappeared. It still occurs, but it's barely noticeable, and seems to occur the most when accelerating from a stop and during the time it seems when the transmission feels like it's slipping.

So, I've got to take care of the tranny issue now, and, I wonder if the ecm from the donor truck might have been replaced at one time and the base timing in the prom is actually 0 degrees. Still no way to know for sure until I can read the prom.

[EagleMark]

Look on the chip, AKMJ should be on it as well.

AKMJ base timing is 0

[damanx]

Look on the chip, AKMJ should be on it as well.

AKMJ base timing is 0

No ACHT bin, which is the bin I am currently running, available online so that I can see.

[EagleMark]

Oh... I thought you plugged in the 1227747 from above post...

[damanx]

Oh no, not yet. Might do it this weekend when I don't need to drive it back and forth to work.

[fasteddi]

Just curious but are you looking into burning your own chips or using a emulator at some point?

[damanx]

I plan on burning, but an emulator would be nice.

[fasteddi]

Ok. Thats what I use also. A burn2 from Moates. Its pretty easy to use and durable. But if you can spring for the extra cash, a emulator is a awsome product to speed up tuning. I finally got to use a buddys on my car the other weekend. Got about 10x the tuning done. But had to give it back. I still need to get one if I just get off my butt and order one.

[clarkent5477]

I realize it's like 8 years later, but how did this end up damanx?

[damanx]

I realize it's like 8 years later, but how did this end up damanx?

Thanks for asking! It's been a while since I have done anything with this truck. It mostly sits in the garage unless I am taking it out to do some hunting, but I still need to tune the WOT numbers on it. Been meaning to do that, just been too lazy.