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2002 cavalier code po530

Code po 530 a/c problem

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Codes po 440 and po 530 diagnostic reading does vechile need freon


440 is for the EVAP system.. Leak some where. 530 is for the A/C. This is a circuit problem. Pull the high pressure sensor plug and jump it. If the compressor starts working, replace the sensor. If not check the plug for power and ground. Nothing there. You need to check wiring, the relay, and the fuse.

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Service engine lite came on what does po530 and po 440 mean


The 530 code is for the air conditioner and the 440 code is emissions related. Since you did not post the year make and model it is hard to say what to check. BTW the codes are all numbers like p0530.

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P02000 is not a valid code. Please recheck. One to many numbers there.

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