Possible causes – Boost pressure sensor harness is open or shorted– Boost pressure sensor circuit poor electrical connection– Faulty boost pressure sensor– Faulty Turbo/Super Charger– Engine over temperature– Ignition misfire exceeds the calibrated threshold– Faulty Knock sensor (KS) Symptoms –
Possible causes – Camshaft position sensor intermittent connection– Crankshaft position sensor intermittent connection– Faulty camshaft position sensor– Faulty crankshaft position sensor– Engine mechanical problems Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0016 FORD Description The Engine
Possible causes – Camshaft position sensor intermittent connection– Crankshaft position sensor intermittent connection– Faulty camshaft position sensor– Faulty crankshaft position sensor– Engine mechanical problems Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0018 FORD Description The Engine
Possible causes – Camshaft timing incorrect– Variable Camshaft Timing solenoid stuck open Tech notes There is factory service bulletin for the following Ford Models: 2002 Ford Focus2003 Ford Focus2002-2003 Ford Focus Factory Service Bulletin OBDII code P0012 Symptoms – Engine
Possible causes – Catalyst Temperature Sensor harness is open or shorted– Catalyst Temperature Sensor circuit poor electrical connection– Faulty Catalyst Temperature Sensor Tech notes As the code description implies the P0435 code means that the vehicle’s control module has detected
Possible causes – Catalyst Temperature Sensor harness is open or shorted– Catalyst Temperature Sensor circuit poor electrical connection– Faulty Catalyst Temperature Sensor Tech notes As the code description implies the P0436 code means that the vehicle’s control module has detected
Possible causes – Catalyst Temperature Sensor harness is open or shorted– Catalyst Temperature Sensor circuit poor electrical connection– Faulty Catalyst Temperature Sensor Tech notes As the code description implies the P0437 code means that the vehicle’s control module has detected
Possible causes – Catalyst Temperature Sensor harness is open or shorted– Catalyst Temperature Sensor circuit poor electrical connection– Faulty Catalyst Temperature Sensor Tech notes As the code description implies the P0438 code means that the vehicle’s control module has detected
Possible causes – Catalyst Temperature Sensor harness is open or shorted– Catalyst Temperature Sensor circuit poor electrical connection– Faulty Catalyst Temperature Sensor Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0439 Description The Engine Control Module (ECM)
Possible causes – Catalytic converter deterioration or malfunction– Exhaust system leaks– Loose front or rear HO2Ss– Faulty front heater O2 sensor– O2 sensors harness is open or shorted– O2 sensors poor electrical connection Tech notes As the code description implies
Possible causes – Catalytic converter deterioration or malfunction– Exhaust system leaks– Loose front or rear HO2Ss– Faulty front heater O2 sensor– O2 sensors harness is open or shorted– O2 sensors poor electrical connection Tech notes As the code description implies
Possible causes – Catalytic converter deterioration or malfunction– Exhaust system leaks– Loose front or rear HO2Ss– Faulty front heater O2 sensor– O2 sensors harness is open or shorted– O2 sensors poor electrical connection Tech notes As the code description implies
Possible causes – Catalytic converter deterioration or malfunction– Exhaust system leaks– Loose front or rear HO2Ss– Faulty front heater O2 sensor– O2 sensors harness is open or shorted– O2 sensors poor electrical connection Tech notes As the code description implies
Possible causes – Catalytic converter deterioration or malfunction– Exhaust system leaks– Loose front or rear HO2Ss– Faulty front heater O2 sensor– O2 sensors harness is open or shorted– O2 sensors poor electrical connection Tech notes As the code description implies
Possible causes – Catalytic converter deterioration or malfunction– Exhaust system leaks– Loose front or rear HO2Ss– Faulty front heater O2 sensor– O2 sensors harness is open or shorted– O2 sensors poor electrical connection Tech notes As the code description implies
Possible causes – Catalytic converter deterioration or malfunction– Exhaust system leaks– Loose front or rear HO2Ss– Faulty front heater O2 sensor– O2 sensors harness is open or shorted– O2 sensors poor electrical connection Tech notes As the code description implies
Possible causes – Catalytic converter deterioration or malfunction– Exhaust system leaks– Loose front or rear HO2Ss– Faulty front heater O2 sensor– O2 sensors harness is open or shorted– O2 sensors poor electrical connection Tech notes As the code description implies
Possible causes – Check other service codes first– Blocked or leaking air intake system– Damaged turbo charger– Faulty Boost Pressure Sensor When is the code detected? The Engine Control Module (ECM) has detected that the boost pressure is lower than
Possible causes – Check other service codes first– Faulty MAP sensor Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0238 CHRYSLER Description The ECM has detected that the Intake Air Pressure is above a calibrated value for
Possible causes – Check other service codes first– Restricted MAP hose– Faulty MAP sensor– Intake manifold fault condition Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0237 CHRYSLER Description The ECM has detected that the Intake Air