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Pontiac Engine Codes

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Engine Code Engine Code Description
P1418 Secondary Air Injection System Relay A Control Circuit High
P1420 Intake Air Low Pressure Switch Circuit Low Voltage
P1421 Intake Air Low Pressure Switch Circuit High Voltage
P1423 Intake Air High Pressure Switch Circuit High Voltage
P1431 Fuel Level Sensor 2 Performance
P1432 Fuel Level Sensor 2 Circuit Low Voltage
P1433 Fuel Level Sensor 2 Circuit High Voltage
P1441 Evaporative Emission (EVAP) System Flow During Non-Purge
P1442 EVAP Vacuum Switch High Voltage During Ignition On
P1450 Barometric Pressure Sensor Circuit
P1451 Barometric Pressure Sensor Performance
P1460 Cooling Fan Control System
P1480 Cooling Fan 1 Control Circuit High
P1483 Engine Coolilng System Performance
P1500 Starter Signal Circuit
P1501 Vehicle Speed Sensor Circuit Intermittent
P1502 Theft Deterrent System - No Password Received
P1503 Theft Deterrent System - Password Incorrect
P1504 Vehicle Speed Output Circuit
P1508 IAC System Low RPM
P1509 IAC System High RPM
P1510 Back UP Power Supply
P1511 Throttle Control System-Backup System Performance
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