Category: Citroen

P1149 Citroen Air/Fuel Ratio Sensor 1 Circuit Range/Performance 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 Citroen Description The Air/Fuel Ratio (A/F) sensor 1 is installed…

P1143 Citroen Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 1 Possible causes – Faulty Front Heated Oxygen Sensor Bank 1– Intake air leaks– Front Heated Oxygen Sensor Bank 1 harness is open or shorted– Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection– Fuel pressure– Injectors Tech description If there are no intake…

P1144 Citroen Heated Oxygen Sensor 1 Rich Shift Monitoring Possible causes – Faulty Front Heated Oxygen Sensor Bank 1– Front Heated Oxygen Sensor Bank 1 harness is open or shorted– Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks may be faulty– Exhaust gas leaks…

P1145 Citroen Intake Valve Timing Control Performance Bank 2 Possible causes – Faulty Intake Valve Timing Control Solenoid Valve– Intake Valve Timing Control Solenoid Valve harness is open or shorted– Intake Valve Timing Control Solenoid Valve circuit poor electrical connection– Faulty Crankshaft Position Sensor– Faulty Camshaft Position Sensor Tech description Since the Intake valve timing…

P1142 Citroen HO2S12 Heater Circuit High Possible causes – Faulty HO2S12– HO2S12 harness is open or shorted– HO2S12 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) Citroen Vehicle:2013 Citroen,2012 Citroen,2011 Citroen,2010 Citroen,2009 Citroen,2008 Citroen,2007 Citroen,2006 Citroen,2005 Citroen,2004 Citroen,2003 Citroen,2002 Citroen,2001 Citroen,2000 Citroen,1999 Citroen,1998 Citroen,1997 Citroen,1996 Citroen,

P1137 Citroen HO2S Circuit Low Voltage During Power Enrichment Sensor 2 Possible causes – Air leak near HO2S– Faulty HO2S– HO2S harness is open or shorted– HO2S circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) Citroen Vehicle:2013 Citroen,2012 Citroen,2011 Citroen,2010 Citroen,2009 Citroen,2008 Citroen,2007 Citroen,2006 Citroen,2005 Citroen,2004 Citroen,2003 Citroen,2002…

P1138 Citroen HO2S Circuit High Voltage During Decel Fuel Cut-Off Sensor 2 Possible causes – Vacuum leak on engine– Faulty Failed Mass Air Flow (MAF)– Faulty HO2S– HO2S harness is open or shorted– HO2S circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) Citroen Vehicle:2013 Citroen,2012 Citroen,2011 Citroen,2010 Citroen,2009…

P1139 Citroen HO2S Insufficient Switching Bank 1 Sensor 2 Possible causes – Faulty HO2S Bank 1 Sensor 2– HO2S Bank 1 Sensor 2 harness is open or shorted– HO2S Bank 1 Sensor 2 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) Citroen Vehicle:2013 Citroen,2012 Citroen,2011 Citroen,2010 Citroen,2009 Citroen,2008…

P1140 Citroen HO2S22 Internal Resistance Too High Possible causes – Faulty HO2S22 Sensor– HO2S22 Sensor harness is open or shorted– HO2S22 Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) Citroen Vehicle:2013 Citroen,2012 Citroen,2011 Citroen,2010 Citroen,2009 Citroen,2008 Citroen,2007 Citroen,2006 Citroen,2005 Citroen,2004 Citroen,2003 Citroen,2002 Citroen,2001 Citroen,2000 Citroen,1999 Citroen,1998 Citroen,1997…

P1141 Citroen HO2S Heater Control Circuit Bank 1 Sensor 2 Possible causes – Faulty HO2S Bank 1 Sensor 2– HO2S Bank 1 Sensor 2 harness is open or shorted– HO2S Bank 1 Sensor 2 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) Citroen Vehicle:2013 Citroen,2012 Citroen,2011 Citroen,2010 Citroen,2009…

P1132 Citroen HO2S Heater Circuit Bank 1/2 Sensor 1 Short To B+ Possible causes – Faulty O2 Sensor– O2 Sensor harness is open or shorted– O2 Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1132 Citroen Description A Heated Exhaust Oxygen (HO2S) sensor indicating rich at the…

P1133 Citroen HO2S Heater Circuit- Bank 1 & 2 Sensor 1 Electrical Malfunction Possible causes – Faulty O2 Sensor– O2 Sensor harness is open or shorted– O2 Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1133 Citroen Description A Heated Exhaust Oxygen (HO2S) sensor indicating rich at…

P1134 Citroen HO2S Heater Circuit- Bank 1 & 2 Sensor 2 Short To B+ Possible causes – Faulty O2 Sensor– O2 Sensor harness is open or shorted– O2 Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1134 Citroen Description A Heated Exhaust Oxygen (HO2S) sensor indicating rich…

P1135 Citroen HO2S Heater Circuit- Bank 1 & 2 Sensor 2 Electrical Malfunction Possible causes – Faulty O2 Sensor– O2 Sensor harness is open or shorted– O2 Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1135 Citroen Description A Heated Exhaust Oxygen (HO2S) sensor indicating rich at…

P1128 Citroen 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 What about the obd code? Engine Control Module (ECM) detects short both circuits between ECM and throttle control motor. Symptoms – Engine Light ON (or Service…

P1129 Citroen Manifold Absolute Pressure Sensor Circuit Higher Than Expected Possible causes – Faulty Manifold Absolute Pressure Sensor– Manifold Absolute Pressure Sensor harness is open or shorted– Manifold Absolute Pressure Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Engine hard to start– Rough or erratic idle speed…

P1130 Citroen Swirl Control Valve Control Solenoid Valve Possible causes – Faulty Swirl control valve control solenoid valve– Swirl control valve control solenoid valve circuit is open or shorted– Swirl control valve circuit is open or shorted– Faulty swirl control valve– Faulty Swirl control valve actuator What about the obd code? The P1130 Citroen code…

P1131 Citroen HO2S Circuit Low Variance Bank 1 Sensor 2 Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1131 Citroen Description A Heated Exhaust Oxygen (HO2S) sensor indicating lean at the end of a test is trying to correct for an over-rich condition. The test fails when the fuel control system no…

P1126 Citroen Throttle Control Motor Relay Circuit Open Possible causes – Faulty Magnetic Clutch– Magnetic Clutch harness is open or shorted– Magnetic Clutch circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1126 Citroen Description Magnetic clutch is mounted between the throttle motor and the valve, and it connects…

P1127 Citroen ECTS Actuator Power Source Circuit Malfunction Possible causes – Faulty Electronic Throttle Control System (ETCS) Actuator– Electronic Throttle Control System (ETCS) Actuator harness is open or shorted– Electronic Throttle Control System (ETCS) Actuator circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1127 Citroen Description Battery positive…