A mileage of about 90,000 km, Launch X431Mercedes-Benz E200 sedan. The car motor failure mild, in some cases when accelerating chug audio with the exhaust pipe, incapability to accelerate.
Fault prognosis: 1st DAS detection, fault code with the exhaust camshaft auto scannerposition untrusted regulation to mistake. The reason for the failure would be the next:
(1) The camshaft posture sensor circuit or engine manage module failure. (2) hurt to auto diagnostic toolthe camshaft posture sensor. (3) The motor timing fault. (4) failure camshaft variable timing. According the circuit diagram detect the exhaust camshaft posture sensor traces.
Key 2 block measuring exhaust camshaft position sensor No. 1 pin auto diagnostic software5V electrical power offer, measuring 3 Pin Floor line and also the human body is turned, the No. 2-pin sign line corresponding with all the motor command module terminal is turned on, plus the three strains There is no short-circuit and open up circuit phenomenon. Suspected damage for the sensor, ingestion and exhaust swap, the malfunction persists. Measuring exhaust camshaft adjustment solenoid valve line regular DAS activate the exhaust camshaft adjustment solenoid valve with idle, idling obvious jitter the exhaust camshaft adjustment solenoid valve generally. So timing is suspected to 1 cylinder TDC posture, rotate the auto code readercrankshaft pulley, camshaft adjustment is marked as well as camshaft bearing cap mark relative, as shown in Determine 2, is when there's nothing wrong using this type of fault detection deadlock.
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