I'm working on a 1987 L98, it has a '165' ECM which originally had an 'ABWN' memcal, but the previous owner had a Hypertech chip in it. I bought the Moates Burn1, and the Moates adaptor and ZIF socket, along with three 29C256 chips.

Since I didn't have the stock memcal, I just installed the Hypertech one onto the Moates adaptor, figuring it would have the same limp home stuff on it. Started with an ARAP bin and used TunerPro RT. Got everything going, burned the chip, put it in and fired it.

First problem is that there is no SES light at all. Not on key turn, not when running. Car runs like crap. Tried everything I could think of, several new burns, nothing works. Tried to pull codes, but no SES at all.

Took the chip out and started it. Runs the same as it does with the chip in, but gave me a constant SES light. So I'm figuring that I'm stuck in limp home.

Trying to rule out a bad ECM I reinstalled the memcal and it started fine and ran like it always did. So I know the memcal and ECM work fine. Pulled codes with the Hypercrap memcal in and it threw only code 12.

I have tried all three chips I have, tried stacking the BIN files, or offsetting them, tried several different BINS (always just editing VATS and the Checksum), I even got desperate and put the chip in backwards to see if I was screwing that up, all to no avail. Still no SES light and the fans running all the time.

I've spent the better part of my weekend working on this mess, and searched this board several times. WHat am I missing here?

 

The 256k chip is your problem. MAF cars use a 128k chip. You need to load your chip into the upper half of the 256k chip. Start your chip at hex address 4000 instead of 0000 and then burn the program onto the chip.

 

I have my Flash&Burn set up with these offsets:

Chip Start: 004000
Chip End: 007FFF

Buffer Start: 000000
Buffer End: 003FFF

I copied that from Moates' site. That is correct, right?

 

You get this working? You had the correct offsets, it should have worked.

 

Yes I did. Sorry for not posting back here. I switched to a stock 32 BIN and it worked, so I redid the 6E BIN I was working on from scratch and that worked as well. Don't know what was up with the first one.