can anyone help iv got running issues with my saph cos 4x4 , from cold its fine but after bout 20mins of driving it it starts playing up if i slow down in gear it cuts out and at low revs it miss fires and hessitates then stalls it starts straight back up and ticks over fine but as soon as i pull away it starts playing up again ,on boost it runs fine and has no loss in power ,its driving me mad iv made sure all the bolts in the manifold are tight and none are missing ,iv also changed the water temp sensor and made sure the 3 big multi plugs on the bulk head are tight and sprayed up with wd40 .
has anybody got any ideas or come accross this problem any help would be much appreciated .

 

When was the fuel filter last changed ?, do the wiggle test with the engine idling on the cps connector, and for good measure check your co.
tabetha

 

the cars all sorted changed the dizzy cap & rota arm on sat morning its been running sweet scince ,cheep fix only Ł25

 

Cant beat cheap fixes which is quite rare for a cossie.