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Code 4-3-3 850

posted by  someone claiming to be gazzer on  Sun Aug 11 15:54 CST 2002 [RELATED]

Hey,
Dtc 433 for the rear knock sensor is caused by a faulty sensor connector. You can try pulling the connectors off and on about 20 times each. Front and rear.
Then grease the connectors wiht a di-electric grease. If the problem returns, there is service kit available from Volvo retailer. Both knock sensor jobs are a little tricky. Intake manifold off is your best way to access.

Good luck:)
Gazzer






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