Help with no start
Thread Starter
Teching In
Joined: Apr 2007
Posts: 21
Likes: 0
Help with no start I really need everyones help. I have an LS1 out of a 2000 Corvette that has been switched to a Camaro throttle body. I am using the vette ecu and harness. I have pinned in the throttle body sensors into the ecu using a 2000 camaro diagram. I have All Data and printed out diagrams for both ecu's and the pin outs are identical for all engine vitals. The only differences are the throttle body sensors. I reflashed the ECU as a 2000 camaro and have the VATS disabled. The engine won't start and I cant figure out why.I have HP Tuners and have logged a couple cranks and I'm showing injector activity but am not getting any fuel from the injectors/ I have 56 psi at rail/.It isn't throwing any DTC's. I am attaching my tune and one of the crank logs.I really could use some help here. The tuner that I have been talking to is a super nice guy and has been a huge help but is getting stumped by this also. He isn't a conversion guy. Please help while I still have hair left.
Joined: Nov 2001
Posts: 1,707
Likes: 33
From: Anderson, Indiana
If the engine sat for a long time, maybe the injectors are just stuck. You can apply 12 volts to them and see if they click when you apply, release, apply, release with 12 volts directly to them.
__________________
91 Z28 LS2 408CI, LS9 Supercharger, LPE GT7 cam, Yank3000, 3450 raceweight.
Latest numbers: 9.71 ET, 141.42 MPH, 1.40 60' , 610 RWHP Mustang Dyno
www.speartech.com
91 Z28 LS2 408CI, LS9 Supercharger, LPE GT7 cam, Yank3000, 3450 raceweight.
Latest numbers: 9.71 ET, 141.42 MPH, 1.40 60' , 610 RWHP Mustang Dyno
www.speartech.com
Thread Starter
Teching In
Joined: Apr 2007
Posts: 21
Likes: 0
I bought a noid light last night at work and found out that the injectors are not firing when it is cranking, BUT they are lighting a couple times when I let off the starter. I gave it a couple quick cranks and can actually get it to stumble a little bit. I started checking my power at injectors and it is hot when cranking. I didn't have the injector 12v on a relay, so I wired in a relay. No change. I am getting12.2 v at injectors with key on and 10.6v when cranking. Any suggestions?
Thread Starter
Teching In
Joined: Apr 2007
Posts: 21
Likes: 0
It is running!!!!!!!! I had the ignition 12v supply to the pcm wired wrong. It was coming from my ignition switch which isn't hot in the start position. After correcting that it fired right up and runs. Thanks to everybody on this forum for all the info and help. This is a great forum. Special thanks to Shawn over at Ragin Racin, I think this is OK because they are a sponsor. He is a great guy with great customer service and really put in way more than he needed to helping me figure this thing out.I'll get some pictures up as soon as I free up some time.
