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OEM Detonation (Knock) Sensor Sub-Harness



Code 34. Detonation or knock sensor circuit problem. This code will revert the ECU to the conservative safety timing and fuel mappings as well as cut the boost on a TT still utilizing the stock safety boost solenoids. We find that this code is almost always triggered by broken wires and/or corrosion on this small sub harness rather than a problem with the sensor itself. Its really only practical to replace it with the engine out of the car, and we usually recommend doing so. If your engine is still in we often just jump the plug in the EFI harness with a 1 mega-ohm resistor to trick the ECU into thinking everything is normal. This does elimate the saftey feature of the detonation sensor system so we recommend fixing the problem right whenever possible, like any engine pull.

Z1 sells new detonation sensors HERE, and an Upgraded Knock Sensor Harness here for 55% less cost than the new Nissan Harness.

This listing is for one new Nissan OEM Part.


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With over 100 parts cars, Z1 Motorsports has the largest selection of used Z parts on the planet. Motors, Transmissions, body parts, down to trim pieces, nuts, and bolts. Our used parts ship daily all over the world.

E-mail parts@z1motorsports.com or call 770-838-7777 for all your used parts needs.

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