I have a buddy who has a 2000 Silverado with a 7.4 (454)(I believe a L29). I tried to read his ECU and it returned an error saying it is locked. I checked the supported vehicles list and the 7.4 was not on the list. Will the EFI read the 7.4 ECU?
I have a buddy who has a 2000 Silverado with a 7.4 (454)(I believe a L29). I tried to read his ECU and it returned an error saying it is locked. I checked the supported vehicles list and the 7.4 was not on the list. Will the EFI read the 7.4 ECU?
Last edited by Dirktdolman; December 5th, 2016 at 02:53 PM.
2003 Chevrolet Silverado 2500HD 6.0L Automatic 4 X 4
Well BUMMER, THANKS
2003 Chevrolet Silverado 2500HD 6.0L Automatic 4 X 4
That's a Vortec Black Box PCM, it should be readable and tunable. However, that controller is End of Life, so what parameters are there are there and will not be looked at again.
~Erik~
2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.
Development has been completed and will not be looked at again. If there are any bugs/inconsistencies, they will not be addressed. Just like software, they're still available to use and tune, just no updates/fixes will be made.
Did you select the Vortec Black Box PCM when attempting to read the vehicle? I'd start off with a laptop and try to read it using V7.5 or V8.
~Erik~
2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.
~Erik~
2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.
I did not go the BBX path. I just hook the laptop up and used the Tune V7.5. I finally got it to download using the L31 Vortec 98-00 PCM. Thanks for heading me in the correct direction. Here is the file I downloaded.
Paul.ctz
2003 Chevrolet Silverado 2500HD 6.0L Automatic 4 X 4
Before you license the vortec computer, consider doing an 0411 ECM upgrade and Licensing that controller instead. There's a hell of a lot more you can do with the 0411 compared to the vortec. Anyway glad you got it figured out.
2001 Camaro SS
EFILive Custom OS3