My nelson harness arrived, I have it all plugged up on the engine and trans. I am going to start wiring it up over the next few days, everything looks straight forward on it to me, they definitely do nice work!
On the factory harness are the only wires I need to worry about keeping are my original wires and plugs for AC, Oil pressure and Temp for the dash?? Everything else can be clipped off, taped and tucked into the original loom for a cleaner look??
Last edited by 1991SSP; 06-28-2012 at 04:22 PM.
speedo, tach, & i tapped back into my Check Engine light.
Where did you tap into the speedo wire? My truck does not have a tach cluster, also on the nelson harness how did you hook up your check engine light, also did you mount the diagnostic port under hood?Originally Posted by RPM Graphics
i found the diagram for my year c100 connector. i'm not sure how the wiring is on the 91. for now i have the OBD2 port under the hood, i plan on tapping back into the one under the dash. for the CEL i came off the ground side of the LED on the Nelson harness & tied into the correct wire on my c100 connector.
Do you care to educate me on the C100 connector you are talking about?? where is it located?
its on the driverside firewall, below the cruise control box on a 96+
idk if its the same way on a 91
97 xcab c1500 lm7 5.3 swap 343RWHP 329RWTQ 13.40 @ 101.97 2.03 60ft. MODS: Longtubes, 3200 stall, TR220 112lsa, .030 799 heads, NNBS intake, PTM 92mm TB. 4" PVC "hot" air intake 3" single exhaust w/cutout 3.42:1 gears, 29" tall tires. Dyno tuned by flaco
My truck is a 1994 model that I'm doing the conversion on
it is between the fender and the brake booster on the driver side on your truck.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
Thanks red
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