What does P0068 throttle angle deviation mean?
2 Answers
Fault code P0068 throttle angle deviation means that there is a discrepancy between the angle of the throttle plate controlled by the computer and the value monitored by the angle sensor, causing the engine computer to report an intake manifold throttle angle deviation fault. The causes of throttle angle deviation faults include the following: 1. Intake boost sensor failure: Short circuit or open circuit in the sensor wiring. 2. Throttle solenoid valve failure: Due to prolonged use, aging wiring combined with high current load can easily cause an open circuit in the solenoid valve wiring, preventing the throttle from opening or closing. 3. Lack of timely vehicle maintenance: Accumulated dust or foreign objects in the air filter can obstruct air intake into the engine, leading to abnormal boost pressure.
Last time my car threw this P0068 trouble code. I looked it up online myself, and it basically means the throttle position angle doesn't match what the ECU expects. The throttle controls engine air intake, so incorrect angles affect acceleration smoothness. Possible causes include a dirty or faulty throttle position sensor, wiring issues, or miscalculations by the ECU itself. When driving, I noticed sluggish throttle response and obvious jerking, especially during starts and hill climbs. I found this needs prompt attention, otherwise it'll increase fuel consumption and may cause long-term engine damage. I recommend first confirming the trouble code with a scanner, checking if sensor connectors are loose or heavily carbon-fouled, trying a simple throttle body cleaning yourself, and if that doesn't work, taking it to a professional shop for diagnosis.
