5 Lastest Threads by marlb Thread Forum Last Poster Replies Views Last Post renault clio engine p040

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Hi, p0401 I posted a problem with my clio 2-3 weeks back and was advised that the coolant temp sensor could be the cause. I have replaced this but the fault still remains. can anyone help. My clio is bunny hopping when it gets up to temp. It has started to get worse and now seems to do it even when the engine has been running ok for a while. I noticed today that with bonnet up and someone lightly revving the engine, there is a sound coming form the injection area. It sounded like the engine sucking in air. This coincides with the depression p0401 of the foot pedal. This would explain the bunny hopping-fuel mixture problem. has anyone got some advice as to what this may be??
5 Lastest Threads by marlb Thread Forum Last Poster Replies Views Last Post renault clio engine p0401 running fault Engines marlb 3 252 24th August 2013 02:33 PM renault clio fault Engines marlb 4 257 7th August 2013 03:47 PM Noise from engine after starting Engines Ralph 5 197 23rd July 2013 05:57 PM Renault p0401 clio 1.2 starting problem Engines hondo 6 348 23rd July 2013 02:40 PM engine splutters and nearly stalls Engines mah14681 10 594 30th December 2012 07:04 PM
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27th August 2013  
Thank you for the replies. I replaced the plugs the other day and they looked ok. I also had the computer code (but have forgotten it). I know that the garage said it was showing a faulty fuel mixture p0401 too rich. The local garage did not have a clue. I don't want to take it to Renault and get charged thousands. I noticed when changing the air filter that there was a small amount of oil in the filter housing is this normal for a car of this age?
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