Ford Model: Focus Zetec Tdci (110) 1.6L Diesel. Ford Year: 2005. UK/Ireland Location: Bridgend. Author. Posted November 5, 2013. Took the car for a short drive yesterday and the red light and 'engine system fault' warning didn't appear. However, even while not pressing the accelerator, the car was revving up and down between 800 and 1000 rpm.
In a few words: Itβs a warning light that alerts the driver about any type of engine problems. In some vehicles, the light comes in two colors: yellow to indicate minor problems and red to indicate serious problems. The check engine light is part of every vehicle that has an electronic engine management system, either an integral one or only
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