Possible causes – Engine Control Module (ECM) outdated or incorrect software– Faulty Engine Control Module (ECM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Engine rough idle– Engine hesitation P1106 ACURA Description The Barometric Pressure (BARO) sensor

Possible causes – Engine Control Module (ECM) outdated or incorrect software– Faulty Engine Control Module (ECM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Engine rough idle– Engine hesitation P1108 ACURA Description The barometric pressure (BARO) sensor

Possible causes – Engine Control Module (ECM) outdated or incorrect software– Faulty Engine Control Module (ECM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Engine rough idle– Engine hesitation P1109 ACURA Description The barometric pressure (BARO) sensor

Possible causes – Engine mechanical condition– Faulty Manifold Absolute Pressure (MAP) sensor– Manifold Absolute Pressure (MAP) sensor harness is open or shorted– Manifold Absolute Pressure (MAP) sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon

Possible causes – Engine oil level low– Low engine oil pressure– Blocked oil passage– Faulty VCT oil control valve Tech notes If the P1253 is present, start by checking the engine oil level and condition. Change engine oil and filter

Possible causes – Engine oil level– Dirty engine oil– Check VTC Strainer for blockage– Faulty VTC Oil Control Solenoid or circuit– Faulty VTC Actuator– Engine mechanical problems Tech notes An stretched timing chain or damaged tensioner can also caused triggered

Possible causes – Exhaust Gas Recirculation Valve harness is open or shorted– Exhaust Gas Recirculation Valve circuit poor electrical connection– Faulty Exhaust Gas Recirculation Valve– Exhaust Gas Recirculation Valve clogged– Exhaust gas leaks Tech notes EGR flow malfunction could be

Possible causes – Faulty Accelerator Pedal Position Sensor– Accelerator Pedal Position Sensor harness is open or shorted– Accelerator Pedal Position Sensor circuit poor electrical connection– Faulty Electric Throttle Control Actuator Symptoms – Engine Light ON (or Service Engine Soon Warning

Possible causes – Faulty Air/Fuel Ratio Sensor 1– Air/Fuel Ratio Sensor 1 harness is open or shorted– Air/Fuel Ratio Sensor 1 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1149 ACURA Description The

Possible causes – Faulty Air/Fuel Ratio Sensor 1– Air/Fuel Ratio Sensor 1 harness is open or shorted– Air/Fuel Ratio Sensor 1 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1159 ACURA Description The

Possible causes – Faulty Air/Fuel Ratio Sensor 1– Air/Fuel Ratio Sensor 1 harness is open or shorted– Air/Fuel Ratio Sensor 1 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1167 ACURA Description The

Possible causes – Faulty Air/Fuel Ratio Sensor 1– Air/Fuel Ratio Sensor 1 harness is open or shorted– Air/Fuel Ratio Sensor 1 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1164 ACURA Description The

Possible causes – Faulty Crankshaft Position Sensor– Crankshaft Position Sensor harness is open or shorted– Crankshaft Position Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Lack/Loss of Power– Engine Stall P1336 ACURA

Possible causes – Faulty Electric Throttle Control (ETC) Actuator– Electric Throttle Control (ETC) Actuator harness is open or shorted– Electric Throttle Control (ETC) Actuator circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P2101

Possible causes – Faulty Engine Coolant Temperature (ECT) sensor– Low engine coolant level– Engine Coolant Temperature (ECT) sensor harness is open or shorted– Engine Coolant Temperature (ECT) sensor electrical circuit poor connection– Faulty engine coolant thermostat Symptoms – Engine Light

Possible causes – Faulty Engine Coolant Temperature (ECT) sensor– Low engine coolant level– Engine Coolant Temperature (ECT) sensor harness is open or shorted– Engine Coolant Temperature (ECT) sensor electrical circuit poor connection– Faulty engine coolant thermostat Symptoms – Engine Light

Possible causes – Faulty Engine Coolant Temperature (ECT) sensor– Low engine coolant level– Engine Coolant Temperature (ECT) sensor harness is open or shorted– Engine Coolant Temperature (ECT) sensor electrical circuit poor connection– Faulty engine coolant thermostat Symptoms – Engine Light

Possible causes – Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1– Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 harness is open or shorted– Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 circuit poor electrical conection– Air leak in

Possible causes – Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1– Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 harness is open or shorted– Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 circuit poor electrical conection– Air leak in

Possible causes – Faulty Intake Air Temperature Sensor– Intake Air Temperature Sensor harness is open or shorted– Intake Air Temperature Sensor circuit poor electrical connection When is the code detected? The P1111 code is set when the Powertrain Control Module