The latest fault is that the check engine light flashes on and off now and again. A few months ago the engine cut out for five second and that light came on. When the light went off, the engine picked up again and run perfectly, as though nothing had happened.
Who took it to a local dealer, whose diagnostic kit showed that the heater plugs were faulty. These were duly changed but, since then, it has cut out a couple of times and the computer has shown it to be an accentuation valve fault.
The accentuation valve is actually the quantity control servo unit that regulates the amount of fuel sent to the injectors. The control servo unit does fail regularly and the only option with this is to replace the pump with a new or recondition unit because the servo unit isn’t available as a separate part.
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