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GMC Sierra 2002, Aftermarket Radio Wiring Harness by Metra®, with OEM Plug. For aftermarket stereo. Metra preassembled wiring harnesses can make your car stereo installation seamless, or at least a lot simpler.. Mar 31, 2011 · Does anyone have a wiring diagram for the ECM in my 2002 5.3? I'm looking to do some DIY engine data collection stuff, or at least an injector pulse gauge to start with. Kyle's 2007 Sierra 2500 LBZ build Phildirt replied Nov 24, 2018 at 4:20 PM. Current Trucks and Ideas on a build GMC Truck Forum - GmFullsize.com. Forums > Modification. Back - 2002 > GMC > Sierra 2500 HD > Body Electrical > Engine Wiring Harness Connector 2002 GMC Sierra 2500 HD Engine Wiring Harness Connector Review Fitment Notes to Ensure Proper Fit.
Bad ground? - While im driving my truck acts as if i put it in neutral. dog chewed wiring harness underneath of my 2007 gmc sierra 1500 sle I have match all the colored wires but the truck want start any ideas would greatly be appreciated. 2002 GMC Sierra 1500 SLE 4WD Standard Cab SB-Maintenance & Repair. Seems electrical. ( bad ground. I have been here several times I own a 2002 gmc sierra 6.0 1500 HD the service engine light is on reading 2 codes po332 and p0332/pd I have replaced both knock sensors and the wiring harness also plugs and wires truck runs fine and no abnormal noises.