Mystery Wire
#21
Back in the original thread 843de said "Back on 4/19/2011 they did this...."Cause: Engine harness chafing at TPS signal J7720 Bulletin 08-06-04-022B 9527 WC 2.20 : Repaired wiring to PCM Connector,, Replaced 4 terminals" .
Duh, that is the "4 way connector" to the Throttle. Why is this still a mystery??????
Duh, that is the "4 way connector" to the Throttle. Why is this still a mystery??????
#22
Donbrew, I'm sorry with your frustration, but I have NO idea what the wiring under the hood is, and I find it better to ask questions, and know, than to try, mess something up, and have to pay boat loads to get it fixed.
#23
I will try to 'splain again: The large black bundle with the cut end used to have the 4-way (purple) connector that plugs into the throttle on the end of it. That connector was cut off when you had the TSB work done that 843de cited. Then to continue the TSB repair, a new 4-way connector with 4 new wires going to the ECM was installed, thus bypassing the original sub-harness. The sub-harness is now just a bundle of extra wires under the hood not connected to anything. They did not replace the entire ECM wiring harness because GM would not pay them the couple thousand bucks for the job VS. $25 for a perfectly good repair.
If you remove the ECM splash shield (the Darth Vader looking thing) you should be able to physically trace the new wire bundle that is attached to your throttle to the ECM connector with your finger and see the cut ends of the original wires.
Now, if that is not concise enough, maybe you should get your repair paperwork in hand and go to the dealer that did the TSB work and ask them to show you EXACTLY what was done. And now for something completely different.
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