WAC performance Posted February 26, 2023 Report Share Posted February 26, 2023 G4 Xtreme ecu worked fine and connected fine until i was cranking the motor to calibrate the timing to the ecu. ecu disconnect and i cant get it to re-connect. k fuku 1 Quote Link to comment Share on other sites More sharing options...
Adamw Posted February 26, 2023 Report Share Posted February 26, 2023 What specific ecu do you have? You say "G4" in your post, but you are posting in the G4+ forum and your profile says G4X. Is it a wire in or plug in? Is the blue light on? Quote Link to comment Share on other sites More sharing options...
WAC performance Posted February 26, 2023 Author Report Share Posted February 26, 2023 I'm sorry. It's a g4xtreme being used on a 350z/g35. I had the base tune downloaded and working fine. I had my son attempt to crank it over for me while I checked for base timing the calibration stage. (Timing and tps). I had the timing light hooked up and trying to get a signal off #1 coil, when my laptop went off line. It's a plug and play with base maps loaded onto it. And sorry I can't see a blue light because it's a closed unit. I checked and the harness has power coming from the car harness. Quote Link to comment Share on other sites More sharing options...
Adamw Posted February 26, 2023 Report Share Posted February 26, 2023 With the USB cable plugged in, is there a Link ECU showing in windows device manager under the Ports category and Universal serial bus controllers? Quote Link to comment Share on other sites More sharing options...
WAC performance Posted February 26, 2023 Author Report Share Posted February 26, 2023 So sorry to waste your time Adam, did some research and ended up being the coil pack shorting out the ecm fuse. I guess when I unhooked the coil pack for timing light placement, I pulled a connector wire and it musta touched eachother and shorted out. Fixed that, replaced the fuse and bam, it connected right away and fan turned off. Thank you so much for your fast response, really new to the ecu world. Thanks again. Maybe someone else will have the same problem and this will give them somewhere to look. Quote Link to comment Share on other sites More sharing options...
WAC performance Posted June 4, 2023 Author Report Share Posted June 4, 2023 Sooo it ended up being a bad coil wire grounding out. Fail safe I guess. Thanks Quote Link to comment Share on other sites More sharing options...
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