Well I think I found the issue with the engine shutting off while accelerating. The VATS Frequency Test fails at the exact same time the engine quits every time. Must be the wire running down the...

It's running timing looks good, PE works, AE works all is good now getting the AFR right and it's all god. Thanks everyone for all the help really appreciate it.

Wow that was stupid huh. No I didn't. Will try that. Thanks

Okay I checked the offsets and buffer, erased the prom and reflashed then checked against the buffer and all was good. When i install the Prom I get a code 51 Checksum error code. Even get it with...

You were correct the distributor reference wires were right up against the ignition wires where they led to the coil. I have another issue though which I posted below and would appreciate your input.

Ok I flashed the chip after erasing it. Now I have a SES and the code is a 51 EPROM Checksum Error. I attached the bin and files with a log. Can you look at it not sure where to correct that...

I will relog it again in the morning it is at the shop. I have checked every ground, power feed, etc. will chack the wiring at the distributer tomorrow also. It has to be something like that it is...

Ok here is the downloaded BHAS Stock chip would you take a look at it and make sure it is correct to start from before I flash it and start with changes? I will be using the attached XDF and ADX...

Working on it today will post a new Log tonight. I saw where the stock bin runs negative spark in the main spark tables and runs off the Main SPrak Bias entry. That is set to 58 degree. That should...

I just downloaded the $Od bin and corresponding adx files. Will try that and see what it does. Will turn on all the codes and see what shows up.

Thanks for the help.

Code is BHAS and the battery voltage was due to a non functioning alternator I fixed that today. Had the battery fully charged when i did the log. Not sure why the timing doesn't change and is static...

The ECU is Part Number 16168625 According to Tuner Pro's download site the 6E is the correct Definition for this ECU. I took the chip and read it out to get the actual data file. I then used the ADX...

It is a 383 with a RV Camshaft and has 10-1 compression. I set the timing at 4 with the tan test timing connector disconnected. I am new to tuning the TBI and would appreciate any input. With the...

I'm working on a 1993 Suburban 4X4 TBI setup. When I accelerate and the transmission shifts the injectors shut off for a second. I lose the injectors completely they go to 0 as you can see in the...

Thank you for all the help. Learned a lot just from your information. Great info for a beginner with Tunerpro.

Here is the bin file I downloaded from the stock chip using the HDR1. Thanks for looking at it.

Thank you I was definitely doing it wrong. I will upload the BHAS stock Bin so you have it and if you could check I did it properly that would be great. Thanks big help!!!!

I have a 1993 GMC Suburban with TBI ECM 16168625. I purchased the APU1 and read the prom code, flashed the new prom attached it to the G! adapter with the original prom. I used the A201_E6_v250 ADX...