Hi all,
Got one of my L77s running with standalone harness. Disabled VATS PATCH 1 & 2... All my 5v references are where they should be on the throttle pedal and the throttle body.. however no power from ecm to throttle body motor. On the scanner it shows throttle pedal movement but obviously no actual throttle body movement.
pedal DTCs.PNG
e38 x2 connector.PNG
thanks a bunch
Some schematics
2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80
~Greg Huggins~
Remote Tuning Available at gh[email protected]
Mobile Tuning Available for North Georgia and WNC
The L77 does use different pins
2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80
~Greg Huggins~
Remote Tuning Available at gh[email protected]
Mobile Tuning Available for North Georgia and WNC
All of those match up to my schematics from ProDemand.com.. Ive checked continuity on all the wires from Throttle Body to ECM plug and they all are good wires. Ive double checked that ive spliced the pedal on in the correct order. I have checked that Im getting the 5v reference at the plug where it should be both on the throttle body and the gas pedal. The only thing that is missing is power from ECM to power the throttle body motor.
What are the dtc's? Sounds like it's in REP...
2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80
~Greg Huggins~
Remote Tuning Available at gh[email protected]
Mobile Tuning Available for North Georgia and WNC
OK so i figured out the throttle and main relay... Dumb wiring problem on my part.. However, now it wont start. I have spark, fuel pump, throttle working, BUT NO INJECTOR PULSE. I just had this thing running the other day.
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