However, you might want to check the routing of the wiring harness the knock sensor wire is in. If it gets routed near the plug wires (or the wires are just laying all over and not in a plug wire loom) you can get a code 43 due to ignition voltage inducing a voltage in the knock sensor wiring.
Even eliminating the code will probably not let it pass testing because they do actual tailpipe testing. Does the truck have all of the OEM pieces on it like the converter, air pump and the rest? If any of the factory smog gear is gone, that is also a fail.
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Tuesday, March 27th, 2018 AT 7:11 AM