Description 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 Warning Light) P1128 Alfa Romeo ACURA OBD Code Description The Manifold Absolute Pressure (MAP)…
Tag: P1128
P1128 Acura Manifold Absolute Pressure Sensor Signal Lower Than Expected
Description 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 Warning Light) P1128 Acura ACURA OBD Code Description The Manifold Absolute Pressure (MAP) sensor…
P1128 VOLKSWAGEN Long Term Fuel Trim B1 System Too Lean
Possible causes – Faulty Mass Air Flow (MAF) sensor– Low fuel pressure– Vacuum leak on engine– Faulty HO2S bank 1 Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
P1128 TOYOTA Throttle Control Motor Lock Malfunction
Possible causes – Faulty Throttle Control Motor– Throttle Control Motor harness is open or shorted– Throttle Control Motor circuit poor electrical connection When is the obd code mean? Engine Control Module (ECM) detects short both circuits between ECM and throttle control motor. Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1128 TOYOTA…
P1128 NISSAN Throttle Control Motor Circuit Short
Possible causes – Faulty Throttle Control Motor– Throttle Control Motor harness is open or shorted– Throttle Control Motor circuit poor electrical connection When is the obd code mean? Engine Control Module (ECM) detects short both circuits between ECM and throttle control motor. Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1128 NISSAN…
P1128 MITSUBISHI Closed Loop Fueling Not Achieved Bank 1
Possible causes – Check fuel trim values – rich or lean air/fuel ratio– Open or short circuit condition– Manifold Absolute Pressure (MAP) Sensor faulty– Engine Coolant Temperature (ECT) sensor faulty– Faulty oxygen sensor Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
P1128 MAZDA HO2S Heater O2 Sensor Too Cool Before KOER Test
Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
P1128 LEXUS Throttle Control Motor Lock Malfunction
Possible causes – Faulty Throttle Control Motor– Throttle Control Motor harness is open or shorted– Throttle Control Motor circuit poor electrical connection When is the obd code mean? Engine Control Module (ECM) detects short both circuits between ECM and throttle control motor. Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1128 LEXUS…
P1128 JEEP Closed Loop Fueling Not Achieved Bank 1
Possible causes – Fuel delivery system– Manifold Absolute Pressure (MAP) sensor or wiring connectors– O2 sensor wiring or connectors– Engine mechanical system– Faulty Powertrain Control Module (PCM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1128 JEEP OBD Code Description The Powertrain Control Module (PCM) detects a condition where the vehicle has…
P1128 ISUZU MAP Sensor Voltage Lower Than Expected
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 Warning Light) P1128 ISUZU OBD Code Description The Manifold Absolute Pressure (MAP) sensor senses manifold…