P0178 Volvo Fuel Composition Sensor Circuit Low Frequency Possible causes – Faulty fuel composition sensor– Fuel Composition Sensor harness is open or shorted– Fuel Composition Sensor circuit poor electrical connection Tech description Replaced Fuel Composition Sensor What about the obd code? The ECM detects that the fuel composition sensor output frequency is less than 45…
P0177 Volvo Fuel Composition Sensor Circuit Range/Performance
P0177 Volvo Fuel Composition Sensor Circuit Range/Performance Possible causes – Flexible Fuel (FF) sensor to Vehicle Power (VPWR) circuit harness open or shorted– FF to VPWR circuit poor electrical connection– Open in FF sensor signal circuit– Short to ground in FF sensor signal circuit – Fuel contamination Tech description Replaced Fuel Composition Sensor Symptoms –…
P0176 Volvo Fuel Composition Sensor Circuit Malfunction
P0176 Volvo Fuel Composition Sensor Circuit Malfunction Possible causes – Flexible Fuel (FF) sensor to Vehicle Power (VPWR) circuit harness open or shorted– FF to VPWR circuit poor electrical connection– Open in FF sensor signal circuit– Short to ground in FF sensor signal circuit – Fuel contamination Symptoms – Engine Light ON (or Service Engine…
P0175 Volvo Fuel Injection System Too Rich Bank 2
P0175 Volvo Fuel Injection System Too Rich Bank 2 Possible causes – Faulty front heated oxygen sensor– Ignition misfiring– Faulty fuel injectors– Exhaust gas leaks– Incorrect fuel pressure– Faulty Mass Air Flow (MAF) sensor What about the obd code? – Fuel injection system does not operate properly.– The amount of mixture ratio compensation is too…
P0174 Volvo Fuel Trim System Lean Bank 2
P0174 Volvo Fuel Trim System Lean Bank 2 Possible causes – Intake air leaks– Faulty front heated oxygen sensor– Ignition misfiring– Faulty fuel injectors– Exhaust gas leaks– Incorrect fuel pressure– Lack of fuel– Faulty Mass Air Flow (MAF) sensor– Incorrect Positive Crankcase Ventilation (PCV) hose connection Tech description If the P0171 Volvo is combined with…
P0173 Volvo Fuel System 2/1 Rich Control Over Limit
P0173 Volvo Fuel System 2/1 Rich Control Over Limit Possible causes – Faulty front heated oxygen sensor– Ignition misfiring– Faulty fuel injectors– Exhaust gas leaks– Manifold Absolute Pressure (MAP) Sensor What about the obd code? – Fuel injection system does not operate properly.– The amount of mixture ratio compensation is not correct Symptoms – Engine…
P0172 Volvo Fuel Injection System Too Rich Bank 1
P0172 Volvo Fuel Injection System Too Rich Bank 1 Possible causes – Faulty front heated oxygen sensor– Ignition misfiring– Faulty fuel injectors– Exhaust gas leaks– Incorrect fuel pressure – Faulty Mass Air Flow (MAF) sensor What about the obd code? – Fuel injection system does not operate properly.– The amount of mixture ratio compensation is…
P0171 Volvo Fuel Trim System Lean Bank 1
P0171 Volvo Fuel Trim System Lean Bank 1 Possible causes – Intake air leaks– Faulty front heated oxygen sensor– Ignition misfiring– Faulty fuel injectors– Exhaust gas leaks– Incorrect fuel pressure– Lack of fuel– Faulty Mass Air Flow (MAF) sensor– Incorrect Positive Crankcase Ventilation (PCV) hose connection Tech description If the P0171 Volvo is combined with…
P0170 Volvo Fuel Trim Bank 1
P0170 Volvo Fuel Trim Bank 1 Possible causes – Intake air leaks– Faulty front heated oxygen sensor– Ignition misfiring– Faulty fuel injectors– Exhaust gas leaks– Incorrect fuel pressure– Lack of fuel– Faulty Mass Air Flow (MAF) sensor– Incorrect Positive Crankcase Ventilation (PCV) hose connection Tech description Dirty air filter, air filter housing or Mass Air…
P0169 Volvo Water In Fuel Light On Too Long
P0169 Volvo Water In Fuel Light On Too Long Possible causes – Water in fuel– Faulty Water In Fuel (WIF) Sensor Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0169 Volvo Description The ECM has detected that the WIF light has remained on longer than expected Volvo Vehicle:Volvo C70,Volvo S40,Volvo XC90,Volvo XC70,Volvo…
P0168 Volvo Fuel Temperature Too High
P0168 Volvo Fuel Temperature Too High Symptoms – Engine Light ON (or Service Engine Soon Warning Light) Volvo Vehicle:Volvo C70,Volvo S40,Volvo XC90,Volvo XC70,Volvo XC60,Volvo V70,Volvo V50,Volvo V40,Volvo S90,Volvo S80,Volvo S60
P0167 Volvo O2 Sensor Heater Circuit Malfunction Bank 2 Sensor 3
P0167 Volvo O2 Sensor Heater Circuit Malfunction Bank 2 Sensor 3 Possible causes – Faulty Heated Oxygen Sensor Bank 2 Sensor 3– Heated Oxygen Sensor Bank 2 Sensor 3 harness is open or shorted– Heated Oxygen Sensor Bank 2 Sensor 3 circuit poor electrical connection Tech description Replacing the O2 Sensor 3 usually takes care…
P0166 Volvo O2 Sensor Circuit No Activity Detected Bank 2 Sensor 3
P0166 Volvo O2 Sensor Circuit No Activity Detected Bank 2 Sensor 3 Possible causes – Faulty Heated Oxygen Sensor Bank 2 Sensor 3– Heated Oxygen Sensor Bank 2 Sensor 3 harness is open or shorted– Heated Oxygen Sensor Bank 2 Sensor 3 circuit poor electrical connection Tech description Replacing the O2 Sensor 3 usually takes…
P0165 Volvo O2 Sensor Circuit Slow Response Bank 2 Sensor 3
P0165 Volvo O2 Sensor Circuit Slow Response Bank 2 Sensor 3 Possible causes – Faulty Heated Oxygen Sensor Bank 2 Sensor 3– Heated Oxygen Sensor Bank 2 Sensor 3 harness is open or shorted– Heated Oxygen Sensor Bank 2 Sensor 3 circuit poor electrical connection Tech description Replacing the O2 Sensor 3 usually takes care…
P0164 Volvo O2 Sensor Circuit High Voltage Bank 2 Sensor 3
P0164 Volvo O2 Sensor Circuit High Voltage Bank 2 Sensor 3 Possible causes – Faulty Heated Oxygen Sensor Bank 2 Sensor 3– Heated Oxygen Sensor Bank 2 Sensor 3 harness is open or shorted– Heated Oxygen Sensor Bank 2 Sensor 3 circuit poor electrical connection Tech description Replacing the O2 Sensor 3 usually takes care…
P0163 Volvo O2 Sensor Circuit Low Voltage Bank 2 Sensor 3
P0163 Volvo O2 Sensor Circuit Low Voltage Bank 2 Sensor 3 Possible causes – Faulty Heated Oxygen Sensor Bank 2 Sensor 3– Heated Oxygen Sensor Bank 2 Sensor 3 harness is open or shorted– Heated Oxygen Sensor Bank 2 Sensor 3 circuit poor electrical connection Tech description Replacing the O2 Sensor 3 usually takes care…
P0162 Volvo O2 Sensor Circuit Malfunction Bank 2 Sensor 3
P0162 Volvo O2 Sensor Circuit Malfunction Bank 2 Sensor 3 Possible causes – Faulty Heated Oxygen Sensor Bank 2 Sensor 3– Heated Oxygen Sensor Bank 2 Sensor 3 harness is open or shorted– Heated Oxygen Sensor Bank 2 Sensor 3 circuit poor electrical connection Tech description Replacing the O2 Sensor 3 usually takes care of…
P0161 Volvo O2 Sensor Heater Circuit Malfunction Bank 2 Sensor 2
P0161 Volvo O2 Sensor Heater Circuit Malfunction Bank 2 Sensor 2 Possible causes – Faulty Rear Heated Oxygen Sensor Bank 2– Rear Heated Oxygen Sensor Bank 2 harness is open or shorted– Rear Heated Oxygen Sensor Bank 2 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks may be faulty– Exhaust…
P0160 Volvo HO2S22 Sensor Circuit No Activity Detected
P0160 Volvo HO2S22 Sensor Circuit No Activity Detected Possible causes – Faulty Rear Heated Oxygen Sensor Bank 2– Rear Heated Oxygen Sensor Bank 2 harness is open or shorted– Rear Heated Oxygen Sensor Bank 2 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks may be faulty– Exhaust gas leaks Tech…
P0159 Volvo HO2S22 Slow Response
P0159 Volvo HO2S22 Slow Response Possible causes – Faulty Rear Heated Oxygen Sensor Bank 2– Rear Heated Oxygen Sensor Bank 2 harness is open or shorted– Rear Heated Oxygen Sensor Bank 2 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks may be faulty– Exhaust gas leaks Tech description Replacing the…