I searched through a lot of posts on this topic. Almost everyone is describing an idle that hunts around and won't settle at the proper RPM.
My problem is different. On some cold mornings, the car won't stay running at all without me giving it gas, and runs REALLY rough like it is only firing on two or three cylinders. It smooths out in less than a minute, but I have to rev it up and down several times to get the cylinders firing, if that makes any sense. It has a new T-belt, cap, rotor, plugs, and wires as of Spring time, and was running perfect all summer.
Could the camshaft position sensor be causing this? Coil? Right now I am getting codes for the CPS, the MAF, and the 02 pre-cat sensor, kind of a chicken-and-egg scenario.
Running update of parts that are new or recently changed, as of 02/3/08:
Plugs, wires, cap, rotor from GAP in spring '07
T-belt, tensioner, thermostat from GAP, spring '07
cleaned PCV valve, replaced breather pipe
MAF sensor again
two tiny vacuum hoses near FPR
Modified by RabbitsKin at 12:43 AM 2-8-2008