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Fuel Rail Pressure - Engine Malfunction

Macstef001
Macstef001
in General Chat

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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.

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    • The Digestive Forum Roundup (24th May - 31st May 2026)

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      The Digestive Forum Roundup (24th May - 31st May 2026) We hope this email finds you well and enjoying your week. As always, our forum has been buzzing with activity, so we’ve compiled the highlights for you. Plenty of interesting discussions are taking place, especially around the Ford Focus and Fiesta models. Starting off with the Focus, many members have been discussing issues with the Emergency Call System, particularly in the Mk4 model. PLB raised concerns about persistent malfunctions, a se
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