C1643 Trouble Code

View C1643 obd/2 error code description and symptoms. C1643 engine photo

Throttle Position (TP) Sensor Intermittent The TP sensor circuit is monitored by the PCM for sudden TP rotation angle (or voltage) input change through the comprehensive component monitor (CCM). If during the last 80 warm-up cycles in key ON engine running the PCM detects a TP rotation angle (or voltage) changes beyond the minimum or maximum calibrated limit, a continuous diagnostic trouble code (DTC) is stored. Poor continuity through the TP sensor connectors Poor continuity through the TP harness Intermittent open or short inside the TP sensor While accessing the TP V PID on the scan tool, lightly tap on the TP sensor or wiggle the TP sensor connector and harness.

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.

C1643 Error Code Repair Process :

The scent may C1643 signal oil or coolant leaking from their normally closed-loop systems, or it may indicate dangerous exhaust gases invading your car's interior. Car and truck exhaust contains toxic gases such C1643, so if the inside of your car mass or volume air flow circuit malfunction as if you were standing behind your car, get out and get it fixed. Fight the urge to take a little nap first. So sleepy. That's the carbon monoxide talking, friends. At least open a window on your way to the shop.

C1643 is a kind of Chassis Trouble Code

Diagnosing chassis noises can be one of the most frustrating problems technicians face. Fortunately, manufacturers have engineered noise, vibration and harshness (NVH) diagnostic techniques and equipment to find the source of the noise.

Common Causes of C1643

A common cause of code C1643 is the failure of Mass or Volume Air Flow Circuit Malfunction, but there are several other possible causes as well, such as ;

Damaged VCT phaser
Camshaft advance mechanism binding (VCT unit)
Camshaft Position Sensor harness is open or shorted
Faulty Intake Valve Timing Control Solenoid Valve

C1643 code for all cars

You can view according C1643 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+C1643 Zagato Bambu

+C1643 Oldsmobile Lss

+C1643 Volkswagen Amarok

+C1643 Daewoo Nubira

+C1643 Lincoln Zephyr

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