conversion harness questions
Thread Starter
Launching!
Joined: Jun 2009
Posts: 213
Likes: 3
From: Manitowoc wi.
conversion harness questions Hey Tuners out there. I have a few questions I hope you can answer. I am in the process of converting a 02 truck w/ 6.0 4l80e harness to run a 5.3 4l60e stand alone for a 66 caprice conversion. Looking at the pinouts on the truck harness I noticed the the heater cicuit for the front O2 is controlled by the pcm on both sides of the cicuit. These O2 connector are shaped like a trapezoid and both left and right sides have a green and light green wire for each which return back to the ecm red connector on pins 74 and 80 in my schematics. I have an ecm #0411 which should be correct for 4.8 to 6.0 litre engine applications. I also compared the 5.3 schematics from a 1500 series truck and found that the O2 sensors use ignition powered feeds to power the heater. Do I need to convert this harness to work with the 5.3 style sensors? I plan on having this ecm tuned for my application and was interested if anyone knew if it needs to be setup/enabled to run with the existing wiring for the O2 sensors. Thanks, Mark
Last edited by mantycarguy; Jan 6, 2012 at 01:32 PM. Reason: updating information
