Question about 1993 Toyota Corolla

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What does code 52 means on the toyota corolla 2000 model in SA.

The engine runs normal and the engine managementlight only comes on when i drive the car for a few metres. Is it possible that it is the knock cencor. I am not sure if there is a knock cencor fitted on that model

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DTC 52 on a 93 Corolla is a Knock Sensor code. I replace the knock sensor; it is located on the side of the engine block, on the side of the engine that faces the firewall. It is in the center; under the intake manifold.

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Posted on Mar 09, 2009


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DTC 52 on a 93 Corolla indicates a problem with the "Knock Sensor" or its circuitry. This sensor is basically a piezoelectric crystal inside a metal housing, that detects "knock" or "predetonation" in the engine, and transmits that info re the "knock" back to the ECU. Most likely, replacement of the sensor, or a repair of the wiring harness will cure your problem, if you engine is running fine, and not making any strange sounds. I hope this answers your question. If you have any others, please feel free to comment back to me. Have agreat day!

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