P1985 Holden Hk OBD Code

OBD/2 P1985 error code description and symptoms.

The Camshaft Position sensor will signal the Engine Control Module when the #1 cylinder is ready for the spark plug to fire (top-dead-center on compression stroke). The ECM uses the information from this sensor to help calculate fuel delivery and spark timing.

As the engine heats up and combustion becomes easier and more complete, the PCM will command the idling control valve to increase the amount of air entering the engine to suit the changing conditions. However, when the load on the engine changes, say, when some electrical consumers or other systems are either turned on or off, the PCM adapts the signal voltage to the idle control valve to ensure that the idling speed remains stable, and at the RPM specified by the manufacturer.

P1985 Holden Hk Error Code Repair Process :

For exhaust gas recirculation sensor a circuit low check engine light is perhaps the most troubling of lights because it could mean so many different things, from you didn't screw the gas cap on tightly enough to look out for pistons flying through the hood and into the stratosphere. The easiest way to find out what this light is telling you is to hook your vehicle up to a scan tool. P1985 error code diagnostic tool looks a little like an oversized calculator and plugs into a communication port inside the car. After you instruct it to perform the scan, it speaks exhaust gas recirculation sensor a circuit low with your car's computers to find out exactly what's prompting the light to turn on.

Common Causes of Holden Hk P1985 OBD2 Code

A common cause of code P1985 is the failure of Exhaust Gas Recirculation Sensor A Circuit Low, but there are several other possible causes as well, such as ;

Clogged or faulty fuel injector (s)
Faulty front heated oxygen sensor
Erratic camshaft position due to low oil pressure
Camshaft Position Sensor harness is open or shorted

P1985 is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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P1985 Holden Hk OBD Code

P1985 Holden Hk Error Code Repair Process :

Common Causes of Holden Hk P1985 OBD2 Code

P1985 code for other Holden cars