1993 Pontiac Sunbird

1993 Pontiac Sunbird 4 cyl Front Wheel Drive 183, 00 miles

When I first start my car, it will " rough" idle for a minute or two, and then I can " hear it smooth out".
My brother says that the " choke is doing its job".

What things do you think might be causiing the problem?
May 16, 2008.

Choke? Is it electronic fuel injected? If so there is no choke. Only carbed engines.

I woudl suspect a faulty IAC module for the rough idling first off.

Maybe even a vaccum leak will cause this or dirty throttle body.

May 17, 2008.