hey everyone.. i have a 93 vigor gs and i just started getting this surge coming from the engine. Now it started just about a week ago when i came to a light..i had my lights on and i thought my heat but the A/C button was pushed on. (must of been when i changed the settings for the heat that i pushed it) well when i stopped at the first light it began to surge.. so i just looked at my dash and then seen the A/c button and shut it off. Ever since then it has been surging. What i notice is that it surges mainly when something is on. Such as heat (rarely when heat is on), lights always and a lot of times when the fan comes on. Now this only happens when i come to a stop or if my car is just running in park. I was told that it could be the IACV but i personally have no idea.. any opinions..thanks
AJ