Silver2000WS-6

iTrader: (1)

I have what I was told was a '99 LQ4 with a factory harness. I am struggling to find a wiring schematic/diagram for it. I am trying to wire it in a tube buggy. The ones I have found in our sticky was for a fbody and I am seeing a lot of differences in the pin outs. One thing I have noticed about the harness that I am not seeing on other truck harnesses is that it has a small fues block (about 3"x5") instead of the larger ones and that the front O2 sensors are a flat style connector, not square like the fbodys. Thanks for any help.

Chase

99VetteFRC

try googling the 99 schematics. I used alldata for my 03 4.8 schematics. I can get the schematics off alldata at work for application, but then would have to mail them to you. it ends up like a small book. About 35 pages.

monteboy84

lt1swap.com has great information on these truck harnesses, should be able to find everything you need there.

-matt

monteboy84

This is the page I was referring to:
http://lt1swap.com/2000harness.htm

I have access to Wiring Diagrams on both Mitchell and Alldata, but prefer this page to trying to dissect a diagram. Basically, you figure out which connectors you're eliminating from the harness, then remove the corresponding pin and wire, it's really that simple. I suggest using the stock truck underhood fuse block, it makes like much easier.

-matt

Silver2000WS-6

iTrader: (1)

Thanks for the info, this is the stuff I was looking for. Some times I wonder about my Googling skills haha.

psiconversion

iTrader: (5)

O2s for both of those applications work the same. The connectors have no affect on the performance. Just make sure you dont use gray/white O2s.

Jon
PSI