U1673 Pininfarina Corvette OBD Code

OBD/2 U1673 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) U1673 DTC is a check of the VCT unit.

As the engine heats up and combustion becomes easier and more complete, the PCM will command the idling control valve to increase the amount of air entering the engine to suit the changing conditions. However, when the load on the engine changes, say, when some electrical consumers or other systems are either turned on or off, the PCM adapts the signal voltage to the idle control valve to ensure that the idling speed remains stable, and at the RPM specified by the manufacturer.

U1673 Pininfarina Corvette Error Code Repair Process :

If your wiper rear mode select switch circuit short to battery 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 U1673 and engine control unit are in charge of monitoring a bunch of different wiper rear mode select switch circuit short to battery, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Pininfarina Corvette U1673 OBD2 Code

A common cause of code U1673 is the failure of Wiper Rear Mode Select Switch Circuit Short To Battery, but there are several other possible causes as well, such as ;

Camshaft advance mechanism binding (VCT unit)
Faulty select solenoid
Faulty Air fuel ratio (A/F) Sensor 1 Bank 1
Faulty front heated oxygen sensor

U1673 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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U1673 Pininfarina Corvette OBD Code

U1673 Pininfarina Corvette Error Code Repair Process :

Common Causes of Pininfarina Corvette U1673 OBD2 Code

U1673 code for other Pininfarina cars