The Great Wall Saver engine idle speed and central control lock failure
  • Automotive

Fault phenomenon: a vehicle with mileage, carrying a combined electronic engine control system engine. User description: when the vehicle is idle, the engine speed is on the tour bus, and the black smoke appears from the exhaust pipe when it accelerates in place, and the central lock of the vehicle is out of order. 59800 r/min-1 000 r/min