Thank you Bill. I understand your method with using a hex editor to change the VIN & correct the check sum afterward. Please permit me to burden you with (2) basic HW related questions.
1. What...

1739117391

Yes sir, I attached a photo of both of my Jet Chip cables. The (1) on the left is my original RS232 version and the (1) on the right is a USB version which I later purchased. Both have...

Thanks to all for your helpful advice. Could someone please recommend a cable that you know has worked successfully? (thanks)

I'm about to try PC Hammer for the first time, were you able to figure out why it tripped the security flag?

Thank you sir, I'll try it.

17390

Sorry, File correctly attached this time.

Thanks Rick. U Da Man.

Thanks Rick. Could you please tell me what software will permit me to copy the original PCM BIN (of the VIN) from the original PCM into the spare PCM? (Thanks for your help! Ron).

I attached an image which shows a point to point wiring diagram for the wires. The wires between the ignition module (mounted inside the distributor on the breaker plate) and the top mounted coil are...

Sorry, I should have said...one ECU is a P01, the other ECU is a P59. The spare used ECUs will be exact replacements, so they will conform to my model year. I purchased the Jet Chip editor years ago...

Can anyone please provide which tool or software App will allow the user to change the VIN on GM OBDII ECUs? I want to be sure it will be successful before buying. All I'm wanting to do is to stock a...

Does anyone know if a 16146299 can work successfully with a 4.3L TBI? I don't see an option in the $99 def to set the number of cylinders to six. Any help is appreciated.

I'm not certain, it is listed on the BCC Look spreadsheet that's been on web for a while as the only 4.3L Auto Bin (BFUU 1992 34044 16193109 16146299 3403 3135 C1 LB4 4.3 MD8 AUTO). Are any...

If anyone could please help. I need a BFUU binary for a 16146299.

It has a 12583827 ECM with a YFBR application. After replacing or reflashing the ECM, can someone describe the Re-learn procedures which are required?

Thanks,
RD