C0249 Pontiac Firehawk OBD Code

OBD/2 C0249 error code description and symptoms.

Catalytic converters must be warm before they can work properly. On a cold start the PCM provides a rich mixture to keep the cold engine running.
All that extra fuel goes into the catalytic converter. But the exhaust isn't very hot, because, ah, the engine is pretty cold. GM has employed several strategies to fire up the catalytic converter quicker and reduce cold start emissions. One way is to use a secondary air pump that pumps outside air directly into the catalytic converter.

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.

C0249 Pontiac Firehawk Error Code Repair Process :

The scent may C0249 signal oil or coolant leaking from their normally closed-loop systems, or it may indicate dangerous exhaust gases invading your car's interior. Car and truck exhaust contains toxic gases such C0249, so if the inside of your car mirror passenger vertical switch circuit open as if you were standing behind your car, get out and get it fixed. Fight the urge to take a little nap first. So sleepy. That's the carbon monoxide talking, friends. At least open a window on your way to the shop.

Common Causes of Pontiac Firehawk C0249 OBD2 Code

A common cause of code C0249 is the failure of Mirror Passenger Vertical Switch Circuit Open, but there are several other possible causes as well, such as ;

Dirty Oil
Faulty select solenoid
Damaged camshaft position (CMP) sensor
Air fuel ratio (A/F) Sensor 1 Bank 1 circuit poor electrical connection

C0249 is a kind of Chassis Trouble Code

Diagnosing chassis noises can be one of the most frustrating problems technicians face. Fortunately, manufacturers have engineered noise, vibration and harshness (NVH) diagnostic techniques and equipment to find the source of the noise.

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

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C0249 Pontiac Firehawk OBD Code

C0249 Pontiac Firehawk Error Code Repair Process :

Common Causes of Pontiac Firehawk C0249 OBD2 Code

C0249 code for other Pontiac cars