P2494 OBD Code

OBD/2 P2494 error code description and symptoms.

Output Shaft Speed sensor circuit intermittent failure The output shaft speed sensor signal to the PCM is irregular or interrupted.
Harness connector not properly seated Harness intermittently shorted, or open Harness connector damaged OSS sensor damaged, or not installed properly Verify harness and connector integrity Verify OSS sensor proper installation.

As long as the throttle plate remains closed, the idling speed and quality is controlled by the PCM via the idle control valve, and as can be seen from the above it should be clear that idle control on a gasoline engine is a complex affair. For instance, if the engine is started in sub-zero temperatures, the PCM will command the idling control valve to allow less air to enter the engine to enrich the air/fuel mixture to create a condition which is roughly analogous to how chokes worked on carburetted engines to control idling in cold weather.

P2494 Error Code Repair Process :

If your kickdown pull relay open or short circuit to ground check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system P2494 and engine control unit are in charge of monitoring a bunch of different kickdown pull relay open or short circuit to ground, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of P2494 OBD2 Code

A common cause of code P2494 is the failure of Kickdown Pull Relay Open or Short Circuit to Ground, but there are several other possible causes as well, such as ;

Camshaft Position Sensor harness is open or shorted
1Camshaft Position Sensor circuit poor electrical connection
EVAP system hose leaking
Fuel tank leaking

P2494 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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P2494 OBD Code

P2494 Error Code Repair Process :

Common Causes of P2494 OBD2 Code

P2494 code for other cars