P0508 Toyota F-1 OBD Code

OBD/2 P0508 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) P0508 DTC is a check of the VCT unit.

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.

P0508 Toyota F-1 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine P0508 light should flash briefly, indicating that the OBD system is ready to scan your vehicle for any malfunctions. After this brief flash, the light should stay off while you drive as long as no problems are detected. If p0508 idle air control system circuit low so, you'll be glad to know that your vehicle is equipped with an early warning system that could save you time, money, and fuel in addition to helping protect the p0508 idle air control system circuit low.

Common Causes of Toyota F-1 P0508 OBD2 Code

A common cause of code P0508 is the failure of P0508 Idle Air Control System Circuit Low, but there are several other possible causes as well, such as ;

Camshaft advance mechanism binding (VCT unit)
Faulty starter motor
Insufficient cylinders compression
Fuel tank leaking

P0508 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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P0508 Toyota F-1 OBD Code

P0508 Toyota F-1 Error Code Repair Process :

Common Causes of Toyota F-1 P0508 OBD2 Code

P0508 code for other Toyota cars