Possible causes – Faulty HO2S Sensor Bank 1 Sensor 2– HO2S Sensor Bank 1 Sensor 2 harness is open or shorted– HO2S Sensor Bank 1 Sensor 2 electrical circuit poor connection Symptoms – Engine Light ON (or Service Engine Soon

Possible causes – Faulty HO2S Sensor Bank 1 Sensor 1– HO2S Sensor Bank 1 Sensor 1 harness is open or shorted– HO2S Sensor Bank 1 Sensor 1 electrical circuit poor connection Tech notes For 1996 and Up Kia models the

Possible causes – Faulty Idle Speed Control Actuator (ISCA) valve– Idle Speed Control Actuator (ISCA) valve harness is open or shorted– Idle Speed Control Actuator (ISCA) valve circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon

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

Possible causes – Faulty Intake Air Temperature Sensor– Intake Air Temperature Sensor harness is open or shorted– Intake Air Temperature Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1112 KIA Description The

Possible causes – Faulty Intake Manifold Runner Position Sensor/Switch– Intake Manifold Runner Position Sensor/Switch harness is open or shorted– Intake Manifold Runner Position Sensor/Switch circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

Possible causes – 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 Warning Light)– Engine

Possible causes – Faulty Mass Air Flow (MAF) sensor – Ignition system fault (ignition coils)

Possible causes – Faulty Manifold Absolute Pressure– Manifold Absolute Pressure harness is open or shorted– Manifold Absolute Pressure circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1103 KIA Description Manifold Absolute Pressure (MAP)

Possible causes – Faulty Throttle Actuator Control (TAC) module– Throttle Actuator Control (TAC) module harness is open or shorted– Throttle Actuator Control (TAC) module circuit poor electrical connection (loose or broken wires) Symptoms – Engine Light ON (or Service Engine

Possible causes – Faulty Throttle Actuator Control Actuator– Throttle Actuator Control Actuator harness is open or shorted– Throttle Actuator Control Actuator circuit poor electrical connection When is the code detected? Engine Control Module (ECM) detects short in both circuits between

Possible causes – Faulty Throttle Actuator Control Actuator– Throttle Actuator Control Actuator harness is open or shorted– Throttle Actuator Control Actuator circuit poor electrical connection When is the code detected? Engine Control Module (ECM) detects short in both circuits between

Possible causes – Faulty Throttle Position Sensor (TPS )– Throttle Position Sensor (TPS ) harness is open or shorted– Throttle Position Sensor (TPS ) circuit poor electrical connection– Faulty Powertrain Control Module (PCM) Symptoms – Engine Light ON (or Service

Possible causes – Faulty Throttle Position Sensor (TPS)– Throttle Position Sensor (TPS) harness is open or shorted– Throttle Position Sensor (TPS) circuit poor electrical connection– Faulty Powertrain Control Module (PCM)– Faulty Mass Air Flow (MAF) sensor– Faulty Manifold Absolute Pressure

Possible causes – Faulty Throttle Position Sensor– Throttle Position Sensor harness is open or shorted– Throttle Position Sensor circuit poor electrical connection When is the code detected? If the difference between actual and calculated value exceeds threshold value, the ECM

Possible causes – Faulty Transaxle Control Module(TCM) or Engine Control Module(ECM)– Transaxle Control Module(TCM) to Engine Control Module(ECM) harness is open or shorted– Transaxle Control Module(TCM) to Engine Control Module(ECM) circuit poor electrical connection Symptoms – Engine Light ON (or

Possible causes – Faulty Transaxle Control Module(TCM) or Engine Control Module(ECM)– Transaxle Control Module(TCM) to Engine Control Module(ECM) harness is open or shorted– Transaxle Control Module(TCM) to Engine Control Module(ECM) circuit poor electrical connection Symptoms – Engine Light ON (or

Possible causes – Faulty Variable Intake Motor– Variable Intake Motor harness is open or shorted– Variable Intake Motor circuit poor electrical connection P1159 KIA Description Variable Intake System (VIS) is used to increase torque at lower rpm and increase horsepower

Possible causes – Leaking fuel injector or pressure regulator– High fuel pressure condition– Leak in exhaust system– Faulty Oxygen (O2) Sensor– Faulty Mass Air Flow (MAF) sensor Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

Possible causes – Loose or missing fuel cap– Saturated EVAP canister– Failed EVAP vent solenoid– Failed leak detection module Symptoms – Engine Light ON (or Service Engine Soon Warning Light)