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obdii scanner fails to read data

 
Old 10-16-2018, 05:14 PM
  #16  
DLook
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I had the same problem. I've even passed CA emissions but ODB2 data fail to read. The shop guy even said I had to drive 10K miles before the ODB2 data could be read.

Specialized ECU Repair video on youtube really saved the day:

It reads fine now. Try it.
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Old 10-16-2018, 06:25 PM
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pp000830
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Some have only had luck reading codes with the engine running. Also try cleaning the OBD socket with some spray electronic/electric motor cleaner. If the above doesn't help pull the socket and check the pin wires.
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