Possible causes – Faulty Fuel Level Gauge– Fuel Level Gauge harness is open or shorted– Fuel Level Gauge circuit poor electrical connection– Faulty Powertrain Control Module (PCM) When is the obd code mean? If the fault detection circuit senses a voltage other than what the PCM expects, the fault line status changes causing the P0656…
Tag: CHEVROLET
P0462 CHEVROLET Fuel Level Sensor Circuit Low Input
Possible causes – Faulty fuel level sensor– Fuel level sensor harness is open or shorted– Fuel level sensor circuit poor electrical connection Tech description Low fuel level can trigger this code. Before replacing any parts try filling up the fuel tank and erasing the engine code. If the problem persist it may be necessary to…
P0175 CHEVROLET Fuel Trim System 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 When is the obd code mean? – Fuel injection system does not operate properly.– The amount of mixture ratio compensation is too large. (The mixture ratio is too rich.) Symptoms…
C0238 CHEVROLET Wheel Speed Mismatch
Possible causes – Faulty Front or Rear Speed Sensor– Front or Rear Speed Sensor harness is open or shorted– Front or Rear Speed Sensor circuit poor electrical connection– Faulty EBCM Symptoms – ABS Warning Light ON C0238 CHEVROLET OBD Code Description As the wheel spins, the wheel speed sensor produces an Alternating Current (AC) signal….
P1132 CHEVROLET HO2S Circuit Low Variance Bank 2 Sensor 1
Possible causes – Faulty Front Oxygen Sensor– Front Oxygen Sensor harness is open or shorted– Front Oxygen Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1132 CHEVROLET OBD Code Description A Heated Exhaust Oxygen (HO2S) sensor indicating rich at the end of a test is trying to…
C0229 CHEVROLET Simultaneous Dropout Of Front Wheel Speed Sensors
Possible causes – Faulty Front Speed Sensor– Front Speed Sensor harness is open or shorted– Front Speed Sensor circuit poor electrical connection– Faulty EBCM Symptoms – ABS Warning Light ON C0229 CHEVROLET OBD Code Description As the wheel spins, the wheel speed sensor produces an Alternating Current (AC) signal. The Electronic Brake Control Module (EBCM)…
P0178 CHEVROLET 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 When is the obd code mean? The ECM detects that the fuel composition sensor output frequency is less than 45 Hz for greater than 6 s Symptoms…
P0201 CHEVROLET Injector 1 Control Circuit
Possible causes – Faulty fuel injector 1– Fuel Injector 1 harness is open or shorted– Fuel injector 1 circuit poor electrical connection When is the obd code mean? If an electrical malfunction occurs in the fuel injector circuit for engine cylinder #1, the ignition feed driver signals the Powertrain Control Module (PCM) to set the…
P0202 CHEVROLET Injector 2 Control Circuit
Possible causes – Faulty fuel injector 2– Fuel Injector 2 harness is open or shorted– Fuel injector 2 circuit poor electrical connection When is the obd code mean? If an electrical malfunction occurs in the fuel injector circuit for engine cylinder #2, the ignition feed driver signals the Powertrain Control Module (PCM) to set the…
P0203 CHEVROLET Injector 3 Control Circuit
Possible causes – Faulty fuel injector 3– Fuel Injector 3 harness is open or shorted– Fuel injector 3 circuit poor electrical connection When is the obd code mean? If an electrical malfunction occurs in the fuel injector circuit for engine cylinder #3, the ignition feed driver signals the Powertrain Control Module (PCM) to set the…