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Located this using the search feature. This is what I would start with. This has good information on all ECU codes CODE 34: DETONATION/KNOCK SENSOR CIRCUIT:
a. Locate the Det Sensor harness connector towards the back of the engine. There are two very similar connectors which often get mixed up.
b. The Det sensor is located UNDER the lower intake manifold. Find the lead that?s running under the intake manifold. It SHOULD be hooked up to the connector with gray and white wires.
c. There?s another connector with green/black and red/black wires. This SHOULD be connected to the driver?s side VTC connector (which has white sheathing around it).
d. Don?t forget to clean all connectors while you?re in here!
e. Clear and run codes. If the code persists, read on.
f. Go to Radioshack and buy a 1 Megaohm (1000k) resistor. Shove it in the det sensor connector going to the ECU (again, the one with the gray and white wires). Reset codes and run them again. If the code is gone, you need to replace your detonation sensor. Many people have relocated it to the back of a head, or to the upper intake manifold. It won?t be as effective, but it works.
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11:04:21 10/21/14
