Re: Code 31, what's the impact of it? (2 problems actually)
Robin, code 31 is for the Cam Sensor. The electronics use the sensor to sync up the ignition with the crank. When it is not working correctly, the SES light comes on, and then the injection system is firing in "batch" mode. This would be the reason why your secondaries are not working.
Possible causes:
Faulty Ground
Faulty Connection
Bad ECM
Bad Cam Sensor
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