GOOD NEWS!!!:jfj:

The ECM i ordered from Active Truck Parts came in today, and that fixed the problem! Apparently there is a certain type of ECM for these big trucks '91 and newer.. :doh:
I sent...

i see what you mean, i lucked up and finally found the proper ECM from a heavy duty salvage yard up north (im down in the bible belt) and they are gonna ship it in the morning.:jfj:

until then i...

What are the main differences?

current ECM# 19186079, which i was told was an updated replacement for the 16147525. when purchased that was all i could find in stock.
The adapter i am using is the solder in GM2 adapter (...

the original chip is toast, im using 27FS512 chips (brand new) with the bin you uploaded. im wondering is im missing something, or if i dont have something just right when i burn the chip. :confused:...

ok so i managed to get pulse to the injectors, but no fuel. fuel pump is running, upon further inspection i found the fuel had turned to some milky color.
keep in mind this isnt too old of fuel...

i am getting no pulse to the injectors, but i do have spark. reckon it might be an offset issue? this is about to drive me crazy..LOL!
:mad1:

so i ran a jumper from the ECM case to the chassis and no dice.... still no start and still flashing the check engine light..
the bin file i have i found on this thread here-...

i will definitely look into all of that whenever i get back to the shop!

hello all! i own a 1991 chevy kodiak c70hd with the 6.0l engine.
i am currently experiencing issues with the ecm and PROM.
my check engine light is flashing constantly (code 51?), and i have no...