Paul22law Posted February 2, 2017 Share Posted February 2, 2017 I have a 1.8 this zetec 09 plate and my engine malfunction light keeps coming on n off and car is sluggish n hesitant, it's poor of fuel averaging 28 mpg,was told to clean the egr pipe but was clear, then told to unplug my air flow sensor I did that and the car ran perfect apart from the orange engine light being on,so iv cleaned my sensor and put back together and now my car is sluggish again, any ideas what to do next as I can't just keep it unplugged Thanks 1 Quote Link to comment Share on other sites More sharing options...
dezwez Posted February 2, 2017 Share Posted February 2, 2017 if you unplug that mass air flow sensor and it runs fine again then that's telling you that you need a new air flow sensor you may need to have the light turn off with a code reader 2 Quote Link to comment Share on other sites More sharing options...
Paul22law Posted February 2, 2017 Author Share Posted February 2, 2017 That's what I thought, lad at work said clean egr valve it's self not the pipe coming from it, will that make a difference or is it 100% air flow meter 2 Quote Link to comment Share on other sites More sharing options...
ajzetecs Posted February 3, 2017 Share Posted February 3, 2017 10 hours ago, Paul22law said: That's what I thought, lad at work said clean egr valve it's self not the pipe coming from it, will that make a difference or is it 100% air flow meter i've just purchased full airbox and sensor on the pipe from eBay, was having same issue and now its running like a beast, is yours petrol or diesel? 3 Quote Link to comment Share on other sites More sharing options...
Paul22law Posted February 3, 2017 Author Share Posted February 3, 2017 Diesel, runs spot on with air flow disconnected but shocking with it connected, I cleaned mine yesterday and still ran poor but does that mean mines had it,I'm picking another up today to try so il try that n hopefully a result. Don't know what else to try if this one makes no difference Quote Link to comment Share on other sites More sharing options...
ace666 Posted February 3, 2017 Share Posted February 3, 2017 As said above its the air mass sensor thats faulty, replace that and all should be fine but bare in mind they are not cheep for a new one. With regards to the egr valve if you can clean it it can't do any harm. 2 Quote Link to comment Share on other sites More sharing options...
Paul22law Posted February 8, 2017 Author Share Posted February 8, 2017 Off to pick up a new sensor today, thought I'd unplug mine for journey but keeps stalling starting up,plugged it back in and started first time Quote Link to comment Share on other sites More sharing options...
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