LS4 Performance - Won't start
08-12-2012, 11:08 PM
I'm finishing up my transmission swap and just got to the point where to start it up. Put the key and the display starts saying to service abs, brakes, stability... When I try to start nothing. So I figure it's related. Anyway I think I got everything hooked up, wheel sensors and the few transmissions sensors. Any ideas?
08-13-2012, 04:23 AM
go back and check the PRNDL switch you probably didnt seat the connector it happended to me when i replaced my trans also check your started and make sure all your wires are going were there supposed to and tightned
08-13-2012, 10:58 AM
That's the big connector on the top correct? That seems good, I'm taking the starter to get tested to make sure it didn't get beat around
08-13-2012, 12:33 PM
Also check and make sure everything is grounded nice and good , had similar problems when I had a ground for the tranny comes loose
08-13-2012, 12:44 PM
Everything seems good I got 4 grounds going to the trans. What would I look for If my computer is shot? Had it retuned for the transmission as well
08-13-2012, 01:06 PM
With the car off should it know what gear it's in. If I shift it it's still saying its in park
08-13-2012, 06:18 PM
Well ended up being a broken ground on the passenger side, must of broke when I jacked up the motor
08-14-2012, 11:45 AM
Glad u you figured it out , let us know how it rides
08-14-2012, 03:37 PM
feels like a new car. i can really tell my rpms dropped when cruising around, so its got a lot less slip in it... before it felt like i was driving around with a huge stall.
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