Electrical Gremlins

[04CHASE]

i have been struggling with some issues lately , my biggest problem is using the vcm scanner i will get disconnected during a run and nto get a log of my run. so its not helping me get faster. my aeroforce guage will reset after i turn the truck on from being off for a while. it will reset the clock on the radio.

 

so does anyone have a pinout of the pcm? im thinking maybe a ground is bad somehwere. any ideas are appreciated as this is really pissing me off.

[Fireman31]

Chase, see if these help you.......

 

[04CHASE]

ok im trying to get this figured out im having issues staying connected to the hpt software and its in the truck . im trying to find out where each of the obd2 connectors go . any help is appreciated. i dont feel like ripping the harness apart quite yet.

[SSThunder]

ok im trying to get this figured out im having issues staying connected to the hpt software and its in the truck . im trying to find out where each of the obd2 connectors go . any help is appreciated. i dont feel like ripping the harness apart quite yet.

 

Have you checked the usb port on your laptop? I've got 1 port that never stayes connected. Just a though

[04CHASE]

oh yeah i have narrowed it down , tried three laptops and sent the hpt cable back to be checked, its the truck.

[Tony-CA]

You may have loose terminal(s) in the OBD2 connector. Is the pin grip good?

[Rausche]

What is VATS doing when you get disconnected? When you're KOEO does your VATS light stay on?

 

Sounds like a similar issue I had. I ended up swapping PCMs, the checksum in my old one was bad and I was not able to perform a VATS relearn.

 

Every time I tried to force a reflash to fix the checksum the VATS kicked on and reset the connections, re-arming the PCM in the process.