BlueZee28

iTrader: (7)

I have tried getting this info on fullsizechevy.com and so far nobody has really gotten the info I need. I also tried posting this on LS1truck.com but every single time I log in, it logs me back out and I can't post anything. I think they Admins haven't activated my account...


What I need is a full wiring diagram for a 2001 LQ4 that shows where the weather pack connectors and pin-outs are. I need something that looks like this, although this is actually for an LS1:

onebad82z

iTrader: (1)

Will this help?

http://www.lt1swap.com/2000harness.htm

91ZLS6

iTrader: (2)

Here's some 03-05 wiring diagrams:

https://ls1tech.com/forums/7751980-post70.html

BlueZee28

iTrader: (7)

That doesn't state if it's a 6.0 LQ4 or LQ9. I wonder if they're different?

91ZLS6

iTrader: (2)

Nope, same between the LQ9/LQ4.

LQ9 got flat top pistons, the motors are otherwise identical. Wiring was the same.

BlueZee28

iTrader: (7)

Then I guess my other question would be if an '01 has the same wiring as an '03-'05.

91ZLS6

iTrader: (2)

Computer pin outs are different.

Gm changed the ecm in 2003 to a different processor, and moved the pins around. The 99-02 truck motors are cable throttle IIRC, which is a bit different then the 03+ since the computer gets its TPS signal from the TAC module rather then the TB itself, then controls Idle air through blade movement rather then a valve.

Ill look into it tonight and let you know via TGO (its sheldon btw ) as im 99% sure the 99-02 truck harness's are idential in wiring to the LS1's cept the wiring is routed differenty, and the harness plugs are shaped different. Wires would come from the PCM in identical positions to an f-body, and would have same data in the wires.

91ZLS6

iTrader: (2)

Past that, im going to write out a new cooling fan diagram, and fuse diagrams. I dont like the single minifuse's holding up the whole system.

From the factory, GM would have had a Maxi-fuse before a mini-fuse.

Ill draw it all out for you so it makes sense, with pinouts, wiring locations etc.

Sheldon

BlueZee28

iTrader: (7)

Ohhh what's up Sheldon! I didn't realize it was you haha


Yea well you're already on top of the ball with this wiring thing for me. You've been the most helpful, and I appreciate it.

91ZLS6

iTrader: (2)

haha, no problem! Love helpin out!

BlueZee28

iTrader: (7)

I picked up the motor tonight, I'm so ecstatic!