eratic

This weekend Iv have had a problem with the idleing its been dropping from 800 rpm down to as low as 300 rpm and sometimes cutting out when turning (for instance into a car park space) its put my eml light on aswel. Its not all the time as it will idle perfect until it is driven again. Ive...

have a mk3 cupra T with a revo remap and a dumpvalve, sometimes when the car warms up the idleing sometimes will jump up and down from about 800 - 1150 rpm on tickover, I have replaced the coil packs recently, pluggs on last service, new lamdba sensor, all pipes and hoses appear to be connected...

need help plz,my revs behave eratically at time,it frops from 800rpm to 500rpm when either engine starts up or wehn car stands .wen it does this i have noticed a noise from end of engine,on right side,any helkp plz,