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Chevrolet racing engine starting difficulties
  • Automotive

A Chevrolet sedan. User response: the engine is difficult to start, the idle speed is unstable after starting, the acceleration is weak, and the engine is easy to extinguish. There is no trouble code. Failure analysis: the maintenance personnel replaced MAP, IAT, ECT, TP, oxygen sensor and IAT, ECM, EVAP, injector, spark plug and other parts, no improvement, check the brake vacuum pump and other vacuum pipeline also no leakage.

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  • client drayton