rp0029

iTrader: (1)

I'm modifying an lq4 harness to handle ls3 injectors. I got these injector connectors, but which wire is for signal and which one for +12v?

rp0029

iTrader: (1)

Bump.

SweetS10V8

iTrader: (4)

Isnt the injector labeled (+) and (-) somewhere?

rp0029

iTrader: (1)

No. Any ideas?

01cherryreds10

iTrader: (9)

Pink is 12V, the dark green/black is ground. The LQ4 harness the topmost wire looks to be a faded pink wire, so that's 12V and the white is ground.

What's the LQ4 harness off of? I looked at a couple LQ4 diagrams and can't see any with white ground wires for the injectors.

Rick Speed

iTrader: (55)

Pin #2 is the control from PCM, Pin #1 power

rp0029

iTrader: (1)

The lq4 connector is on the left. On the right is an ls3 connector I got on eBay. The color of the ls3 may not be accurate. Which is pin 1?

Rick Speed

iTrader: (55)

They should be numbered. Look at the top by the wires it should be numbered. I just bought the same connectors you did but have not started wiring yet. If need be I can run out the the garage and look at mine.

Rick Speed

iTrader: (55)

Ok all the white ones are power and the multi colored ones are pcm.

rp0029

iTrader: (1)

I see an "A" and a "B". No 1 or 2 anywhere.

rp0029

iTrader: (1)

Great! Thanks!

Rick Speed

iTrader: (55)

A=1 b=2