U1340 Nissan Az-1 OBD Code

OBD/2 U1340 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.

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.

U1340 Nissan Az-1 Error Code Repair Process :

If your servo motor potentiometer foot circuit open 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 U1340 and engine control unit are in charge of monitoring a bunch of different servo motor potentiometer foot circuit open, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Nissan Az-1 U1340 OBD2 Code

A common cause of code U1340 is the failure of Servo Motor Potentiometer Foot Circuit Open, but there are several other possible causes as well, such as ;

Clogged or faulty fuel injector (s)
Engine Control Module (ECM)
Fuel injectors may be faulty
Damaged VCT phaser

U1340 is a kind of Network Trouble Code

U-code indicates that engine communication errors and shows lost communication with engine parts.U-Codes are fairly straight forward, given all of the articles and technical publications that have been written regarding these problematic codes. In most cases, it just comes down to identifying the module that isn't communicating with the other modules on the CAN bus line for whatever reason.

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

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U1340 Nissan Az-1 OBD Code

U1340 Nissan Az-1 Error Code Repair Process :

Common Causes of Nissan Az-1 U1340 OBD2 Code

U1340 code for other Nissan cars