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Matt
Matt, Mechanical Engineer
Category: Car
Satisfied Customers: 21611
Experience:  BEng hons Mech engineering, in auto industry 22 years
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07 plate Clio 1.2 16v has just been mot'd with the intention

Resolved Question:

07 plate Clio 1.2 16v has just been mot'd with the intention of putting it back on the road.
Car has been unused for approx 2 years, plugs, oil & oil filter were replaced last week.
Car is now refusing to go over 2500 rpm & 30 mph, injector fault showing on dash display.
How reliable is the dash message as I have read various threads that have discribed a similar fault but various fixes. From faulty coil to faulty battery.
Submitted: 1 year ago.
Category: Car
Expert:  Matt replied 1 year ago.
helloOn any car if you get a check engine light or other fault light this typically means one or more of the sensors has failed or has a faulty connection. The fault can be something quite simple and nothing that’s going to stop the car to something quite major that will reduce engine power and possibly stop the engine The ECU senses this and may put the car into 'limp home' mode which typically limits the revs and the amount of power available. Usually the car is safe to drive for a short distance as the mode is intended is intended to get you home without incurring any engine damage The quickest route to repair is to have the car plugged into a diagnostic machine which will read off the fault code stored in the ECU (providing the light is still on at this point) and indicate which sensor has failed or whether the fault is more serious. from your description I'd say its likely to be a lack of fueland could be a lack of fuel pressure from the electrical pump at the tank. If the connections to the pump are corroded or damaged then the pump could stop at any time or could notbe running at full speed. Check that its relay switches in and out and the relay contacts are clean and bright – replace the relay if in any doubt and do the same for the fuse,Ideally measure the pressure at the injectors and if this is low check the pump as described and also consider changing the fuel filter as if this partially blocked this too will reduce pressure.
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