guys i need to know what the hell is going on with my car, i was told that it could be a faulty egr valve but how do you test? it is a 1990 VW golf 1.8l 8v? i need this car running very soon to get back and fourth to work please someone help me!!!!!
 here is what it is doing - when you first crank the car it is good until it warms up then the car gets a funny idle jumping and wonts to die but if up give it throttle it fine until it gets figity and then it wonts to bog down, when your driving the car it just losses power and wonts to die and if you start it back up it will do the funny idle thing and then when you try to pull of the car will bog down again? what the hell is going on please i need help. you can easily push the gas and eventually get it going but only to be stopped by the bogging down.  i need to know what the hell is going on!!!!!!!!!!

Disconnect the Oxygen sensor and see if the problem goes away.  The O2 sensor isn't active when the engine is cold so if it's faulty it could lead to a problem when the engine is warm.

OK guys the new sensors are in and the thing was running great i also replaced the plugs and they were fouled out. the new plugs did great and as soon as i put in the new sensors it started right up and drove like a new car but now it is starting to have a rough idle again its happening all over what is going on?