Injector Fault??

[phaeton]

When I get to a junction the engine does not run smooth, if it was a petrol i would say that a spark plug or lead it faulty, but being a 1.9DCi it's not that. Rest of the time it pulls really well, but the fuel consumption has gone from 55 to 44mpg, is it likely to be a sticking injector & how easy are they to get out? 2005 if it makes any difference?

Alan...

[AlexB]

1. check the clear pipe to the high pressure pump for bubbles of air
2. drain water from the fuel filter - there is a special bleed screw at the bottom of it
3. clean the EGR valve - they cause rough idling.

[phaeton]

Cheers Alex, I'll have a look this weekend, intend to do a service, oil, filters etc, this has all started happening since it went just past the service interval, did wonder if it was Renault had programmed the ECU on purpose

Alan...

[AlexB]

I hope you don't mean that the oil was not changed for two years.
It is a sure way to destroy the engine. The small script in your handbook explains that the service intervals should not exceed 1 year for most of us.