A super-mileage 230,000 km, equipped with BDW engine, matching 01J-type transmission 2007 Audi A6 2.4 sedan. Users reflect: sometimes difficult to start the car.
Check Analysis: test maintenance personnel discovered that the car was at the time of starting the engine shake, similar problems caused by dirty throttle. Open the oil cap and found no abnormalities. Connection failure diagnostic engine fault code read, display mb star c3 diagnostic tool camshaft position sensor failure, active static. When the engine is idling, found that work is relatively stable. At this point to read the throttle opening, no obvious abnormalities. Read 15 and 16 sets of data, found that 4,5 and 6-cylinder are different degrees of fire, and 1, 2 and 3 cylinder misfire is 0.
Analysis, 4, 5 and 6 cylinder are fire, indicating the left side of the cylinder into the gas shortage could be camshaft phase adjustment function failure.
Troubleshooting: Replace camshaft adjustment solenoid valve troubleshooting.
Additional Description: This car is not a line fault solenoid valve, if so, the system will give the circuit open / short fault codes.
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