i have an e20 error code on my 1990 cadillac sedan deville. What does that mean? E20 means open fuel pump circuit could be failed fuel pump relay
...Sensor E15 Open Coolant Sensor E16 Generator Voltage Out of Range E19 Shorted Fuel Pump Circuit E20 Open Fuel Pump Circuit E21 Shorted Throttle Position Sensor E22 Open Throttle Position Sensor ...
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