1985-1988 V6 Fiero Trouble Codes

• Code 13 - Oxygen Sensor (open)
• Code 14 - Coolant Temperature Sensor (high)
• Code 15 - Coolant Temperature Sensor (low)
• Code 21 - Throttle Position Sensor (high)
• Code 22 - Throttle Position Sensor (low)
• Code 23 - Manifold Air Temperature (low)
• Code 24 - Vehicle Speed Sensor
• Code 25 - Manifold Air Temperature (high)
• Code 32 - Exhaust Gas Recirculation (EGR) Circuit
• Code 33 - Manifold Absolute Pressure Sensor (high voltage)
• Code 34 - Manifold Absolute Pressure Sensor (low voltage)
• Code 35 - Idle Speed Error
• Code 42 - Electronic Spark Timing
• Code 44 - Oxygen Sensor (lean)
• Code 45 - Oxygen Sensor (rich)
• Code 51 - PROM Error
• Code 52 - CALPAK Error
• Code 53 - System over voltage
• Code 55 - ECM Error