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Engine Controls - Tests W/Codes - 5.7L Expand All (for easy ctrl-f) Collapse All Introduction Self-Diagnostic System Trouble Code Charts Notes Code 13, Open Oxygen Sensor Circuit Code 14, Coolant Sensor Signal Voltage Low Code 15, Coolant Sensor Signal Voltage High Code 16, VSS Buffer Fault - "G" Series Code 21, TPS Signal Voltage High Code 22, TPS Signal Voltage Low Code 24, VSS - "C" & "K" Series 5.7L M/T Code 24, VSS Transmission Output Signal "G" Series Code 31, Engine Speed Governor - 5.7L "G" Series Code 32, EGR Circuit Error With Linear EGR Code 32, EGR Circuit Error - "C" & "K" Series M/T Code 32, EGR Circuit Error - Models Using Manifold Vacuum, 2-Terminal Solenoid & BACKPRESSURE EGR Code 32, EGR CKT Error Models Using Ported Vacuum & EVRV Sol Code 33, Map Sensor Signal Voltage High Code 34, Map Sensor Signal Voltage Low Code 35, Idle Speed Error Code 36, Idle SPD Actuator Fault - "C", "K" & "P" Series A/T Code 42 - Ignition Control Code 43, Knock Sensor W/O Spark Module (Single Sensor) - "C", "G", "K" & "P" Series A/T Code 43, Knock Sensor With Spark Control Module Code 44, Lean Exhaust Indication Code 45, Rich Exhaust Indication Code 51, Prom Error (Faulty Or Incorrect Prom) Code 52, Faulty CALPAK Code 53, System OVERVOLTAGE Code 55, ECM/Pcm Error Code 54, Fuel Pump Circuit Summary