C1818 Oldsmobile Custom OBD Code

OBD/2 C1818 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.

One example of this would be when an automatic vehicle in placed in gear. To prevent the added drag from the torque converter and transmission from reducing the idling speed, the PCM will command the idle control valve to allow more air to enter the engine, while at the same time, adjusting the injector pulse width to inject more fuel to suit the increased amount of air. Note that the idle air control valve is closed by the PCM when the throttle plate is opened to prevent excess air from entering the engine.

C1818 Oldsmobile Custom Error Code Repair Process :

For c1818 air suspension lr air compress request exceeded max timing 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. C1818 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 c1818 air suspension lr air compress request exceeded max timing with your car's computers to find out exactly what's prompting the light to turn on.

Common Causes of Oldsmobile Custom C1818 OBD2 Code

A common cause of code C1818 is the failure of C1818 Air Suspension LR Air Compress Request Exceeded Max Timing, but there are several other possible causes as well, such as ;

Dirty Oil
Failures of clutch motion/travel sensors.
Air fuel ratio (A/F) Sensor 1 Bank 1 harness is open or shorted
Open VPWR circuit

C1818 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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C1818 Oldsmobile Custom OBD Code

C1818 Oldsmobile Custom Error Code Repair Process :

Common Causes of Oldsmobile Custom C1818 OBD2 Code

C1818 code for other Oldsmobile cars