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RPM Problems

Posted: Thu Jun 11, 2015 9:11 am
by Jonesr19
Hi All,

My Megane 1.4 Hatchback is revving up and down, then last night it was droping to 500 r.p.m when on stop. Also has been cutting out when driving. Any ideas? It also idles at 1300 r.p.m. All of these are random. Please can somebody help?

Thanks

Re: RPM Problems

Posted: Thu Jun 18, 2015 11:06 am
by AlexB
It might be something related to either the throttle body or a vacuum leak in the intake manifold behind the throttle body (gaskets/throttle/antipollution/brake servo). Less likely - check the fuelling and O2 sensor.