The coils and injectors should have a +12 volts with the key on and the PCM pulses the ground. You might check for the +12 to ground at the connectors. I think the wire color is pink.
The coils and injectors should have a +12 volts with the key on and the PCM pulses the ground. You might check for the +12 to ground at the connectors. I think the wire color is pink.
2006 Superior Blue Trailblazer SS AWD, Stock as a rock
Sold: 2002 GMC Sportside Denali front end with a 2002 LS1, FLT level 5, Yank 2600, Trick Turbo, T76, Nelson intercooler, 60LB injectors, Warbro fuel pump, Eaton locker, Magnaflow, 3.42, Nelson Performance Tuning (speed density).
Sold: 1981 GMC LB RC 1500 2002 4.8L 4L60E 12 bolt 3.73 Richmond Lock Right AC PS Nelson Performance tuning
I do have 12 volts at the coil terminals and at the injector terminals. I checked the grounds at the pcm also. Jim
its odd it doesn't bust off for a second then die. Make sure the wires going to the cam and crank sensors didnt get pinched between or cut by something. Do you have fuel pressure at the rails?
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
56psi at the rails.The guy that did my wiring and flashed my pcm said the all work done flashing is with all connectors in placeand tested that way. Is that common? how much do most charge for flashig a pcm
thats bullcrap IMO. You can't test a PCM without putting it on an engine and seeing if it runs or not. Bad burns happen all the time. Who is your tuner?
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
are you sure you have your switched hot(pink) hot in start and run, not just run, have seeen that and they will not start period if that is the case
1987 jeep wrangler, 1999 LS 1, 4l60 231j transfercase, dana 30 frontend ford 8.8 rearend 3:73 gear ratio. sandersons shortie headers, 2.25 inch exhaust into 3 inch flowmaster muffler.
Good point, I had not thought of that one.Originally Posted by oldcarstulsa
2006 Superior Blue Trailblazer SS AWD, Stock as a rock
Sold: 2002 GMC Sportside Denali front end with a 2002 LS1, FLT level 5, Yank 2600, Trick Turbo, T76, Nelson intercooler, 60LB injectors, Warbro fuel pump, Eaton locker, Magnaflow, 3.42, Nelson Performance Tuning (speed density).
Sold: 1981 GMC LB RC 1500 2002 4.8L 4L60E 12 bolt 3.73 Richmond Lock Right AC PS Nelson Performance tuning
Posting Permissions
Reply With Quote