Macstef001 Posted March 2, 2019 Share Posted March 2, 2019 Hello, my Smax keep randomly going into limp mode with Engine Malfunction warning. The fault that keeps registering is Fuel Rail Pressure (Intermittent/Erratic). The problem is the fault keeps resetting itself after the engine is switched off for a few hours so by the time its in a garage for repair (3 times now) they can't detect the fault and fix it. The best guestimate is that its the fuel pressure sensor on the rail. However I understand its not possible to replace just the sensor on an Smax and the whole rail would have to be replac ed (£500 with labour). Its an expensive gamble. Has anyone experienced this problem and is it correct to assume its a sensor fault? Thank you. Quote Link to comment Share on other sites More sharing options...
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