Golf 1.6 Idle Problem when AC on PLEASE HELP, I'M DESPERATE.

[edinfocus]

Hi,

So i'm new to this forum but i have been searching the web all over for help on this.

So i have a 2004 mk5 Golf 1.6 - BGU engine code

The problem i have is after the engine has warmed up, at idle it will hunt (rev up and down) between 700rpm and 1500rpm

It will only do this with the Air Condition on

All vaccum hoses have been checked and replaced where necessary. MAP Sensor cleaned, throttle body cleaned.

I believe it could be a faulty egr valve, as when i disconnect the electrical connector to the egr it idles beautifully.

What do you think? Is it the EGR Valve, if so can i just leave the electrical connector unplugged?

Or is it something else

[Crasher]

So you have carried out a fault code read and dealt with the issues present (including the fault code you have generated by disconnecting the EGR valve with the ignition on) and re-matched the cleaned throttle body to the ECU?