What PCM do I have?

[truktruk]

Have an handfull of oddball problems on a 94 k2500 Suburban and Id like to snag a PCM or 2 from the scrap yard for testing purposes.
The current PCM in the truck has no serial/part numbers aside form a crusty sticker that I can make out EM7427.
What all other PCMs could I use in this truck? I know I need to change the chip (PROM?) out.
Is there a way to validate the chip in the PCM now is for that vehicle? I wouldnt put it past some fella before me to install the wrong components the way the truck acts.

Thanks in advance!

[Chewy1576]

What color are the connectors? That will help narrow it down. Also, what is the broadcast code on the eeprom or memcal itself?

[Byron454]

That should have the red/blue connectors and the OEM # should be 16197427. The # on it is a remanufactures # Probably an A-1 Cardone Brand or standard ignition part reman.
as the A-1 would be 77-7427

[truktruk]

What color are the connectors? That will help narrow it down. Also, what is the broadcast code on the eeprom or memcal itself?

They are red and blue.
I had to lookup what a broadcast code is, and upon removing the blue cover from my PCMs "chip" I found there are no letters in my code, only numbers. the full code is:
4061
1618
8020

The blue cover has "DELCO 7396 BJDR" marked on it. Definetly think this is a reman unit now.

[Byron454]

The 7396 BJDR is what you need to identify the prom and calibration. the prom "chip" is a GM OEM part.

[Woods]

16197427 PCM was used in 1994 - 1995 C/K Truck, Van, S-10, 4.3L, 5.7L & 7.4L
Search your junk yard or ebay for that PCM, you'll be good. From the factory they have a label on them, if they are OEM.
The BJDR memcal is for 94 Chevy 5.7 Auto.
This page has info on that PCM, has a list of Malfunction Error Codes, if it's showing a check engine light.
http://www.gearhead-efi.com/Fuel-Injection/showthread.php?303-16197427-PCM-Information-0D