Hi guys, as in title once the engine has warmed up and sat at idle for a little while it starts to splutter and cough and eventually it will cut out, it runs smooth under boost up to 28psi, I'm thinking coolant temp sensor but I thought I would ask you guys first. Cheers

Alex

 

I would firstly check the idle co, may be fouling the plugs.
tabetha

 

hi mate have same prob with my s1, i belive mine is an electrical breakdown in the cable, i have changed all ignition side and still same
when cable gets hot it builds up resistence and broken or bad jointed cables can have a bad effect.

 

Spoke to Stu and in conjunction with another problem I've now found i'm going to replace the fuel pressure reg.

 

Mine was the same after I plugged a different ECU in - set the CO on it properly and it stopped cutting out.