I have replaced both knock sensors and the wire harness on my Yukon XL and I am still getting both knock sensor codes while trying to get the monitoring systems to complete for emissions. How can I test the knock sensors and will I have to replace them again. Could rust from the block prevent a complete circuit and cause a faulty reading. The old harness was bad the copper wires in side the insulation appeared burnt. Could that have caused a problem further down the line?
have the same problem?
Friday, August 29th, 2014 AT 6:01 AM