DTC P0401 Exhaust Gas Recirculation Flow Insufficient Detected Description Monitor description Monitor strategy Typical enabling conditions Typical malfunction thresholds Confirmation driving pattern Inspection procedure Check any other dtcs output (in addition to p0401) Perform active test using intelligent tester (control the egr step position) Inspect egr valve assembly Replace egr valve assembly Check for deposit (intake port to egr valve assembly) Check for deposit (exhaust manifold sub-assembly to egr valve assembly) Inspect egr with cooler pipe sub-assembly Read value using intelligent tester (manifold absolute pressure sensor) Check intake system Replace manifold absolute pressure sensor Confirm whether malfunction has been successfully repaired

DTC P0351 Ignition Coil "A" Primary / Secondary Circuit DTC P0352 Ignition Coil "B" Primary / Secondary Circuit DTC P0353 Ignition Coil "C" Primary / Secondary Circuit DTC P0354 Ignition Coil "D" Primary / Secondary Circuit Description Monitor description Monitor strategy Confirmation driving pattern Wiring diagram Inspection procedure Check harness and connector (ignition coil assembly - body ground) Inspect ignition coil assembly (power source) Check harness and connector (ignition coil assembly - ecm) Check whether dtc output recurs (dtc p0351, p0352, p0353 or p0354)

DTC P0340 Camshaft Position Sensor Circuit Malfunction DTC P0342 Camshaft Position Sensor "A" Circuit Low Input (Bank 1 or Single Sensor) DTC P0343 Camshaft Position Sensor "A" Circuit High Input (Bank 1 or Single Sensor) Description Monitor description Monitor strategy Confirmation driving pattern Wiring diagram Inspection procedure Inspect camshaft position sensor (power source) Check harness and connector (camshaft position sensor - ecm) Check sensor installation (camshaft position sensor) Inspect intake camshaft (timing rotor) Replace camshaft position sensor Check whether dtc output recurs (p0340, p0342 or p0343) Adjust valve timing Check whether dtc output recurs (p0340, p0342 or p0343) Check harness and connector (camshaft position sensor - ecm)

DTC P0335 Crankshaft Position Sensor "A" Circuit Description Monitor description Monitor strategy Component operating range Confirmation driving pattern Wiring diagram Inspection procedure Read value using intelligent tester (engine speed) Inspect crankshaft position sensor (resistance) Check harness and connector (crankshaft position sensor - ecm) Check sensor installation (crankshaft position sensor) Inspect no. 1 crankshaft position sensor plate (teeth of sensor plate) Replace crankshaft position sensor Check whether dtc output recurs

DTC P0327 Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor) DTC P0328 Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor) Description Monitor description Monitor strategy Confirmation driving pattern Wiring diagram Inspection procedure Read value using intelligent tester (knock feedback value) Inspect ecm (knk1 voltage) Inspect knock control sensor Check harness and connector (ecm - knock control sensor)

DTC P0300 Random / Multiple Cylinder Misfire Detected DTC P0301 Cylinder 1 Misfire Detected DTC P0302 Cylinder 2 Misfire Detected DTC P0303 Cylinder 3 Misfire Detected DTC P0304 Cylinder 4 Misfire Detected Description Monitor description Monitor strategy Typical enabling conditions Confirmation driving pattern Wiring diagram Inspection procedure

The fuel trim is related to the feedback compensation value, not to the basic injection duration. The fuel trim consists of both the short-term and long-term fuel trim. The short-term fuel trim is fuel compensation that is used to constantly maintain the air fuel ratio at stoichiometric levels. The signal from the air fuel ratio sensor indicates whether the air fuel ratio is rich or lean compared to the stoichiometric ratio. This triggers a reduction in the fuel injection volume if the air fuel ratio is rich and an increase in the fuel injection volume if it is lean. Factors such as individual engine differences, wear over time and changes in operating environment cause short-term fuel trim to vary from the central value. The long-term fuel trim, which controls overall fuel compensation, compensates for long-term deviations in the fuel trim from the central value caused by the short-term fuel trim compensation. If both the short-term and long-term fuel trim are lean or rich beyond predetermined values, it is interpreted as a malfunction, and the ECM illuminates the MIL and sets a DTC.

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DTC P0120 Throttle / Pedal Position Sensor / Switch "A" Circuit Malfunction DTC P0121 Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem DTC P0122 Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input DTC P0123 Throttle / Pedal Position Sensor / Switch "A" Circuit High Input DTC P0220 Throttle / Pedal Position Sensor / Switch "B" Circuit DTC P0222 Throttle / Pedal Position Sensor / Switch "B" Circuit Low Input DTC P0223 Throttle / Pedal Position Sensor / Switch "B" Circuit High Input DTC P2135 Throttle / Pedal Position Sensor / Switch "A" / "B" Voltage Correlation Description Monitor description Monitor strategy Confirmation driving pattern Fail-safe Wiring diagram Inspection procedure Check harness and connector (throttle position sensor - ecm) Inspect ecm (vc voltage) Replace throttle body assembly Check whether dtc output recurs (throttle position sensor dtcs)

DTC P0116 Engine Coolant Temperature Circuit Range / Performance Problem Description Monitor description Monitor strategy Confirmation driving pattern Inspection procedure Check any other dtcs output (in addition to dtc p0116) Inspect water inlet with thermostat sub-assembly