99 7.4L questions....
I cant get my EFI live to read the computer. I guess I don't know how to go about it. I don't know if the controller is supported or not. I thought it was.
If I hit check status it say it's fine. If I put 99and up it doesn't work if I put vortec L31 It cam up with a vin lock. How could this be?
Do you have the V1 or V2?
2000 Silverado Full Size 4x4: Forged 6.2, H/C F1R Procharger
98A4 Z28: 02 PCM H/C Forged 347, 9" Moser 3.73
V1 V2 99+up RR COS #5 OLSD Dual Stg N20
www.efialchemy.com
www.greatamericancarwar.com
I have the V1.
I am not exactly positive but, I don't think the V1 can read that pcm? Maybe somebody can chime in.
2000 Silverado Full Size 4x4: Forged 6.2, H/C F1R Procharger
98A4 Z28: 02 PCM H/C Forged 347, 9" Moser 3.73
V1 V2 99+up RR COS #5 OLSD Dual Stg N20
www.efialchemy.com
www.greatamericancarwar.com
v2 is needed for the vortec pcms. The communication protocal of the pcm itself was not compatible with v1. Ross tried, but it wasnt going to work.
"If you can leave a black mark on the pavement, from the exit of one corner to the braking point of the next one, you have enough horsepower."
cool thanks. You know Ill be ordering an upgrade from you soon.Originally Posted by wait4me
Ya mon! Keep da V1 in yer Z and da V2 ready to roll in everybody else's ride.
2000 Silverado Full Size 4x4: Forged 6.2, H/C F1R Procharger
98A4 Z28: 02 PCM H/C Forged 347, 9" Moser 3.73
V1 V2 99+up RR COS #5 OLSD Dual Stg N20
www.efialchemy.com
www.greatamericancarwar.com
What protocol do these PCM's use? Not CAN that old is it??
I had always thought it was the VPW.
It is vpw, but the v1 wasnt liking the comms.
"If you can leave a black mark on the pavement, from the exit of one corner to the braking point of the next one, you have enough horsepower."
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