Engine misfire and EML on, fault code stored P0300 random/multiple cylinder misfire detected. Customer advised at the previous garage that the ECU required replacing. After further investigation the garage checked the injectors, plugs, coil packs & leads which showed no faults. The engine vacuum was also checked which indicated a problem with sticking valves.
The fault was cured by cleaning the intake system with Forté Valve Cleaner as per instructions, carrying out an extended Forté Advanced Formula Motor Flush and adding Forté Advanced Formula Gas Treatment into the fuel tank. After treatment the vehicle was taken on a 8 mile road test, the misfire had gone and the vehicle was running perfectly.
Thanks to Russell at Green Lane Garage in New Eltham, London.
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