John florence Posted April 1, 2016 Share Posted April 1, 2016 Hi I bought a 2007 focus sport 1.8 petrol and when you touch the throttle there is a slight miss also when idle there is a slight bounce I have changed the EGR valve spark plugs the ignition coils and it's had a full service but the miss is still there has anybody got any ideas please I'm throwing money at it like no tomorrow and I am so stressed with it all Quote Link to comment Share on other sites More sharing options...
Russ Posted April 1, 2016 Share Posted April 1, 2016 Did you check the leads? Quote Link to comment Share on other sites More sharing options...
John florence Posted April 8, 2016 Author Share Posted April 8, 2016 On 1 April 2016 at 7:08 PM, Russ said: Did you check the leads? Hi russ i have had it on a diagnostics and it hasn't come up anything I have just changed the fuel injector aswell but was speaking to someone and they said that its fuel related so that's why I haven't bothered with the leads and it now sounds like it's sucking in air Quote Link to comment Share on other sites More sharing options...
John florence Posted April 8, 2016 Author Share Posted April 8, 2016 Which leads would I check as they go to everything Quote Link to comment Share on other sites More sharing options...
Russ Posted April 8, 2016 Share Posted April 8, 2016 1 hour ago, John florence said: Which leads would I check as they go to everything Spark Plug leads, check them with a meter as you 'might' find one has 'gone' https://www.ngk.de/en/technology-in-detail/ignition-cables/diagnosis/testing-of-ignition-cables/ Quote Link to comment Share on other sites More sharing options...
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