Well, I got a little too excited. Turns out my PCM is actually bricked, even though the flash went through.

I'm not exactly sure what I did wrong, but 2 things that come to mind are:

1. I...

Yeah, didn't have high hopes for getting a read. I was able to flash a file with GM DPS this evening, I've still got work to do, but the flash was successful.

I'm pumped that I even got a flash to...

Well, I tried PCM Hammer again, still no go. From what I'm reading, this is a "black box" PCM, before the days of the P01 etc. PCM Hammer only works on P01 and up.

If someone knows of a way to...

Yes, PXXXX codes.

Attached code lists for obd1 and obd2.

I have been trying to search for dtcs in 16 bit hex with no luck. The way the table works in the obd1 file is totally new to me. I'm used to the newer ecms where each doc has a value between 00 and...

I appreciate your efforts. The only problem is that my truck is OBD2, so it has 5 digit codes. I should have mentioned that earlier.

But I'll look throught the changes you made. They might still...

This one lines up.

Hello, everyone. I'm really hoping someone here can help me.

I'm working on an XDF project for my personal truck. It's a 1998 GMC with a L65 6.5 Detroit Diesel. It was built with an automatic...

Hi, I just read that I needed to introduce myself. I've been a member here over a month already. :doh:

So anyway, thanks for not banning me.

I'm here mostly to learn about 6.5 Diesel tuning....