Hi everyone im seeking help in burning a chip for my customers 85 Corvette TPI. 870 ECU.

99% of the time I don't get any data logging via ALDL cable.

I am using flash and burn to burn to SST512 chip.

I have made changes to the $1f bin via Tunerpro but every time I burn the chip the check engine light is on. If I stab the gas pedal the car acts if there is no fuel but slow rev it will rev hesitantly. I've put in the deadtimes for 24lb injectors and tried scaling the MAF in both directions + & - and same result.

Can anyone who has experience with tunerpro help me out please