Hi all,
I have a 2k3 Avalanche 5.3L North Face Edition that I bought programmed with fuel economy settings. I wanted to reset it to factory before adjusting anything, but I keep getting an error 85 on the Hypertech Max energy programmer that came with my purchase. I’ve tried removing the amp, radio, onstar and ABS fuses, but I’m not getting anywhere. Any ideas would be appreciated!
I have a 2k3 Avalanche 5.3L North Face Edition that I bought programmed with fuel economy settings. I wanted to reset it to factory before adjusting anything, but I keep getting an error 85 on the Hypertech Max energy programmer that came with my purchase. I’ve tried removing the amp, radio, onstar and ABS fuses, but I’m not getting anywhere. Any ideas would be appreciated!
