so you had them mod the existing harness, not build a whole new one?

It's very safe to say I'm learning the expensive way. Yes, I had them mod the existing harnness.;)

All I need now is the pwr/steering pump and alt set up. I'm getting close!:thumbsup:

I got the fuel tank wired in today with a bigger fuel pump.

What is this? I can't find a spot for it?:hail:

oil pressure sender I believe........

I think the oil pressure senser is oval. Is it on the right front, or back by firewall? If up front it could be AC high pressure switch. All my plugs/wires were labeled from speartech.
Scott

it also looks like the older TPS plug. I was guessing oil pressure because of the location, looks like it's at the rear of the engine in that pic.

Since this is a modded harness, not a completely new one I'm not sure it came labeled for the pieces Speartech didn't mod.

Jody

It is towards the rear of the harness by the fire wall. It's the only plug that wasn't labeled. Not knowing much I would think it could be oil because it's close to the drivers side rear. The oil pressure unit is right by the oil filter, mine is not drilled and tapped for the unit yet.

that's exactly where the factory oil pressure sender is, and it's the correct round three terminal plug. Stock on most LS engines they're right behind the intake manifold, in the valley cover plate. The LQ9 you have isn't in the cover, but the same location I believe, right next to the cam sensor, upper rear of the block. Let me find a pic.

edit: okay, here's a pic on found on the net, the second pic is where yours is; same location as the first, but the valley cover is different and doesn't cover the sender........

Thank's Jody :thumbsup:

I have another question. My O2 sensor plugs are different then the ones that came with my Dougs headers. Is it common for people to swap out to a universal plug or are there special plugs?

if you're speaking of the bungs in the headers it should be the standard 18mm X 1.5 thread that all O2's use. Got a pic of what you're talking about?