Aug 13, 2018 · 2004 GTO LS1 M6 - SBE, PRC 2.5 62cc Heads, PRC .660 springs, MagicStick v3 cam, Melling High Pressure oil pump, Cometic 0.040" headgasket, Trunion Upgrade, TSP 7.450" pushrods, LS7 Lifters, 42lb injectors, underdrive pulley, Mishimoto radiator, Awespeed intake, Kooks longtubes/Catless mids, Borla catback, Monster Stage 3, 15" Race Star's, MT ET Drags

Aug 21, 2007 · It's a difference between 04 gto's and 05/06 not that people have modified them this is a stock location for the 05/06 gto's 04 GTO M6 LPE CAI, LS6 Ported heads, FTI Cam

May 12, 2011 · Thread: 04 GTO Ecu-No tach signal from ecu Thread Tools. Show Printable Version; 05-04-2011 #1

Aug 2, 2016 · Thread: 04 gto ecu wont idle after tune load Thread Tools. Show Printable Version; 08-01-2016 #1 #1

Jun 12, 2023 · Within the restoration and rebuild of my Chevy c10 project; I have done the 04 GTO ls1 swap. Finally we started the engine and was working fine, suddenly the engine stopped, I started the engine and rightaway noticed the spark plug …

Aug 1, 2006 · PCM reset 04 GTO Jump to Latest 7.7K views 5 replies 3 participants last post by slammin86 Aug 1, 2006

May 21, 2021 · I have a 04 gto have the stock ecu. Runs great goes great untill I hit around 6000 rpm then goes in to limp mod. Runner says everything in the tune is turned of that needs to be. It's a lsx 427 procharged. At a loss. We think there is something in the ECU that we can't access through the HP runner but not sure. Anyone had this problem?

Jun 19, 2024 · Not sure whether or not I mentioned it but I put a scope on the two leads coming from the VSS right at the green plug and get a nice sine wave proportional to the speed of the drive shaft so I know that the ECU is getting the signal. It's just not processing it. Also, the engine and tranny came out of a running GTO so the issue must be in the tune.

Feb 16, 2017 · Loved it, wrecked it (guy pulled out from a red light). I bought another 04 GTO rolling chassis. I swapped over engine, trans, ecu, basically everything. So it has the 04 ls1 ecu on the ls2 motor. I had problems getting the car to start. Turned out it was the vats system. Problem is the mechaninc i had help me reset the ecu (erasing the tune ...

Jul 15, 2020 · I have neither, obviously, since I'm doing a swap, so I have no easy way to check this out) then the VATS controller (or BCM, again, not sure) feeds a 30-50hz signal to the ECU to say 'yup, the key checks out'. Once the ECU gets that signal, it allows the engine to operate normally. Without it, it cuts ignition 3 seconds after startup.