LB7 to LBZ (Wiring)
- Thread starter RPM Motorsports
- Start date
I think I did it right, there was two orange wire together and I moved them to A8. The pinout drawing I had was a little wonky but I think they are in the right place. Do you have a pinout for C2 block? I tried the antifreeze thing just in case and I made sure all the air was out of the lines. I think its a wire issue for sure though as it is exactly 3 seconds it stays running every time.
Ya I checked it again and it is on A8 according to the pinout I have and there is 12V's there, they are the two orange wires that are together. The security lock light still does flash though even though I bypassed it with a resistor!! I scanned it and these are the two codes I get P0405 Exhaust Gas Recirculation Sensor A Low and P0540 Intake Air Heater A Circuit. I am assuming these are because I did an EGR delete and didn't get it programmed yet. This shouldn't be causing the problem though right? Or does this year need a programmer to make it run after you do an EGR delete?
Those codes won't stop it from running. I don't have the pinout in front of me.., but the pair of wires moves to a spot where there is a single wire of the same color. The single wire moves over one spot to the left and is the outside row.
Oh boy, ok thats what is wrong then. It is the black block on the bottom of the fuse box right? The middle one? There is also a gray block on the far right side and then a red and green smaller block on the right. This is the pinout I used but I didn't have to move a wire.
http://www.justanswer.com/gm/717ik-2006-chevy-truck-2500-hd-6-6-just-truck-shop-11-000.html
http://www.justanswer.com/gm/717ik-2006-chevy-truck-2500-hd-6-6-just-truck-shop-11-000.html
Yeah, black C2 pluged into the under side of the fuse box. If you hold up the LB7 C2 side by side with the LBZ you can see pretty clearly what needs to move and where.
Hi ok I went back to the fuse box from the LBZ, I changed it back to my LB7 fuse box because the horn wouldn't stop blowing but it didn't stop anyway so I removed the fuse. Anyway so the wiring harness and fuse box is from the LBZ now so nothing should have to change wire wise on the C2 right? I took a picture but I have to figure out how to put it on this site so you can see the black block, maybe you can tell if there is a wire out of place or something.
No I do not, I have not done mine yet and I was following along hoping to learn from you!
I'm afraid anything I would add, would be incorrect and cause more confusion.
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Does anyone have a diagram pinout of the C2 from an LBZ? This thing still starts great but only runs for 3 seconds every time then shuts off!! I double checked the wiring, the only thing I would like to check now is the C2 block. The other thing the truck is doing is the horn won't shut off without pulling the fuse!! I'm not sure what the heck thats all about!!!
That could be the horn issue, polarity could be switched.
Reverse the wires at the horn itself, put the fuse back in, see if it honks as it should. Just a thought.
Reverse the wires at the horn itself, put the fuse back in, see if it honks as it should. Just a thought.
Ya I got the horn working, I tightened it to much when I put it in but its all good now. The dam thing runs nice for 3 seconds then shuts off, I made sure it wasn't an air in the fuel issue!! I was wondering if on the C100 connector when I removed C(brown wire) if that is doing something to shut the engine off? C says Ignition 3 Voltage.
Switch the plugs from the coolant overflow bottle and the AC condenser, I think you have them backward.
Odd we have (2) LB7 based trucks, that will run for 2 to 3 seconds?
http://www.duramaxdiesels.com/forum/showthread.php?t=73421
http://www.duramaxdiesels.com/forum/showthread.php?t=73421
Hey guys I finally got her running!! I did the VATS again and away she went, I guess twice wasn't enough!! Anyway the only thing thats not working is to select the gears 1-6 when its in Manual Shift. It lights up but doesn't allow me to shift. So I did run a couple wires in the cab cause I wasn't sure I would need to add a wire for the Tap/shift since I changed the steering column and harness. Anyway which wire do I tap into to get this to work? Is it the purple loop wire on the brake light harness? I know the under hood fuse box end goes to the grey wire on the C100 connector but I'm not clear if its the purple loop wire or not.