Originally Posted by
curbrider
what i need help with figuring out is why my ecm wont communicate with a scan tool. the ecm is still running the vehicle. it just wont communicate with a scan tool.
As Robyn said, your scan tool won't communicate with the 6.5L ECM due to the fact that your scan tool does not come loaded with the proper 6.5L diesel software. The genuine GM Tech II is the only scan tool I know that works properly.
Casey
1995 K1500 Tahoe 2 door, 6.5LTD, 4L80E, NP241, 3.42's, 285/75R16 BFG K02's; 1997 506 block; Kennedy OPS harness, gauges, Quick Heat plugs, and TD-Max chip; Dtech FSD on FSD Cooler; vacuum pump deleted, HX35 turbo, Turbo Master, 3.5" Kennedy exhaust, F code intake; dual t/stats, HO water pump, Champion radiator; Racor fuel filter