After a 50 mile run down the 405 to El Toro and back, I rolled into the check station. I left it idling to keep it warm, but before the tech arrived (20 minutes or so) she started smoking just a...

I was using $42-1227747-V3T.ADX, I will try a later version and see how that works. I installed the new injectors but truck still runs lean. From a stop it just won't take any pedal. It backfires...

regarding the knock counter ... I'll not bother with it as it has no particular value toward making the truck run better. As to the other issue "very high battery voltage" I think I agree that it is...

Thanks, that sounds like good advice. I'll do that and report back.

I have another question... can anyone offer a reason why my battery voltage shows 16.9 to 17.1 volts on the TunerproRT dashboard while datalogging. It shows normal (13.5V or so) on the actual (real)...

I wish to zero out the knock counter each time I start a new data log run. Could someone tell me where to find info on how to do that, please?
87 chevy truck ecm 1227747
Thanks,
Dave