Hello. My name is Mark and I will be assisting you today.
Have you tried starting the engine with the aircon in the off position.
Yes I have and it didn't work either.
Ok. I don't think the problem is related to the aircon being switched on for the first time in a year.
Start by checking for split or loose vacuum hoses around the throttle body and inlet manifold.
Also check throttle body is clean and does not stick.
Okay, I shall do that now.
I did what you said, checked the hoses around the intake manifold snd the throttle cable and they all look good. I even took it around the block but every time I took my foot off the accelerator to apply the brakes it just died. It doesn't idle at all.