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Posts posted by misa

  1. I soldered the diode inside the ECU, unplugged the air pump, and cleared the CEL. Now I am getting a CEL, but when I plug in my scanner, there are no codes registered. Cleared several times, but when I shut off and turn on the car. Any help here....am I missing something?

    If the car have automatic transmission it could be a code for transmission.You can't read those codes with standard scanner.At least you would need vol-fcr.

    Some auto transmission codes are presented via check engine light.

    The other possibility is that you have a specific volvo code which can't be read via standard obd II reader.