Tag: HONDA

Possible causes – High fuel pressure– Low fuel pressure– Damaged FRP sensor– Excessive resistance in the circuit– Low or no fuel– Wiring harness connector of the fuel pressure sensor– Fuel Rail Pressure Sensor– Vacuum leaks– Fuel Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Engine will not start P0191 HONDA OBD Code…

Possible causes – IACV-AAC valve harness is open or shorted– IACV-AAC valve poor electrical connection– Faulty IACV-AAC valve Tech description The problem is very common with Honda Civic and Honda Accord vehicles, and adjusting the engine idle speed usually takes care of the problem, also there is a service bulletin for the following Honda models:…

Possible causes – Idle Air Control Valve (IACV)/Auxiliary Air Control (AAC) Valve harness is open or shorted– Idle Air Control Valve (IACV)/Auxiliary Air Control (AAC) Valve circuit poor electrical connection– Faulty Idle Air Control Valve (IACV)/Auxiliary Air Control (AAC) Valve When is the obd code mean? The P0511 code is set when the Idle Air…

Possible causes – Idle Air Control Valve harness is open or shorted– Idle Air Control Valve circuit poor electrical connection– Faulty Idle Air Control Valve Symptoms – Engine Light ON (or Service Engine Soon Warning Light)– Engine rough idle P1508 HONDA OBD Code Description The target idle speed is in the Engine Control Module (ECM)…

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 is combined with the P0174 code, it’s very likely that…

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 is combined with the P0174 code, it’s very likely that the problem…

Possible causes – Leaking or stuck open thermostat– Low engine coolant level– Insufficient warm up time– Faulty engine coolant temperature sensor– Engine coolant temperature sensor harness is open or shorted– Engine coolant temperature sensor circuit poor electrical connection Tech description If cooling system is not leaking and the fluid level is OK, replacing the thermostat…

Possible causes – Faulty Transmission Speed Sensor– Transmission Speed Sensor harness is open or shorted– Transmission Speed Sensor circuit poor electrical connection When is the obd code mean? Diagnostic Trouble Code (DTC) P0717 is detected when TCM or ECM receives no signal from the sensor. Symptoms – Engine Light ON (or Service Engine Soon Warning…

Possible causes – Faulty Transmission Speed Sensor– Transmission Speed Sensor harness is open or shorted– Transmission Speed Sensor circuit poor electrical connection When is the obd code mean? Diagnostic Trouble Code (DTC) P0718 is detected when TCM or ECM receives and intermittent signal from the sensor. Symptoms – Engine Light ON (or Service Engine Soon…

Possible causes – Faulty Vehicle Speed Sensor– Vehicle Speed Sensor harness is open or shorted– Vehicle Speed Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1791 HONDA OBD Code Description The Vehicle Speed Sensor (VSS) is driven by the differential. It generates a pulsed signal from an…