Running Problem

[stig3131 0 1 Cars]

Hi this is my first post so fogive me if i mess up.

 

205 gti 1.9 on a d plate, starts and running for 30 seconds and runs at 2000 rpm, if you touch the accelarator it just cuts out and stalls or if you dont touch the accelarator it will stall after about 30 seconds:

 

so far i have swapped and swapped back with no effect

 

the throttle body

the air flow meter

the fuel pump relay

the ecu

the coolant sensor

 

also:

added petrol

 

there is a relay next to the fuel pump relay that is getting hot even when the ignition is off, ,may not be anything but thought i would add it

 

there is a brown multi plug under the afm with 3 wires 2 are conected to the sensors behind the thermostate but one (brown) is loose and cant see where it is to go.

 

any help would be very much appricated

 

thanks neil