U3459 Seat Arona OBD Code

OBD/2 U3459 error code description and symptoms.

Variable Cam Timing Over-advanced (Bank 1) The comprehensive component monitor (CCM) monitors the VCT position for an over-advanced camshaft timing.
The test fails when the camshaft timing exceeds a maximum calibrated value or remains in an advanced position. Cam timing improperly set No oil flow to the VCT piston chamber Low oil pressure VCT solenoid valve stuck closed Camshaft advance mechanism binding (VCT unit) U3459 DTC is a check of the VCT unit.

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.

U3459 Seat Arona Error Code Repair Process :

If your fuel pulse in range but lower than expected 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 U3459 and engine control unit are in charge of monitoring a bunch of different fuel pulse in range but lower than expected, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Seat Arona U3459 OBD2 Code

A common cause of code U3459 is the failure of Fuel Pulse In Range But Lower Than Expected, but there are several other possible causes as well, such as ;

Camshaft advance mechanism binding (VCT unit)
Faulty spark plug (s)
Continuous oil flow to the VCT piston chamber
Faulty Mass Air Flow (MAF) sensor

U3459 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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U3459 Seat Arona OBD Code

U3459 Seat Arona Error Code Repair Process :

Common Causes of Seat Arona U3459 OBD2 Code

U3459 code for other Seat cars