My first (and second) attempts at flashing a custom os have ended in what seems to be catastrophic failure. The first attempt was on a pcm from an 02 camero. Reading the stock tune went fine. During the erasing part of the reflashing sequence, it reported that comms was lost with the pcm. Now I can't connect to the pcm at all?
Luckily I had a spare, from an 00 Suburban. So, I tried again. Read the stock tune no problem. During the reflash, same thing. WTF!
I spent two licenses and burnt two pcms....what am I doing wrong? Can I recover these?
V2 has bootblock 2.06.02 and firmware 2.06.12
using V7.5 build 88
Using my desktop computer and Bench harness with wall plug for power (strong 12.1V)...pins are right - it read fine.
Any Ideas?????