FIXES OF THE WEEK
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Posted Fix Information
Diagnostic steps: Checked voltage between both wires and ground at Knock Sensor 2 with sensor disconnected. LT BLUE wire was 1.1 volts and GRAY wire was 1.9 volts...it should be 2-3 volts. With a DVM connected, performed a ""wiggle"" test on the harness and the reading changed to 2.47 volts.
Fix: Found harness rubbing against the left front valve cover mounting stud. Repaired the harness.
Other Engine Performance Problems
A/C Compressor Clutch