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Tiffany Yuan

Analysis of common faults of engines part II

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Common failures of electronic-controlled engines are as follows: difficult starting; unstable idle speed; unstable idle speed of hot vehicles; engine tempering; engine running weakness; engine intermittent failure; cylinder starvation; excessive fuel consumption; poor acceleration and other symptoms. There are various reasons for every failure.

1.4Reasons for intermittent engine faults (1) Loose wiring connectors, tighten each item firmly; 2) Inspect the ignition system and the cylinder high-voltage spark (3) Check the status of distributors (4) Check whether the vacuum tube has air leakage (5) artificial vibration, observe whether the fault phenomenon changes.

Feilong Jiangli will share other faults analysis of electronically controlled engine.


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