This car came to the shop for a service. The owner reported that he had always had trouble with cold starting, in that the car could be started initially,
but, if once stalled or shut off just after the initial start, would not restart without a long cranking with the throttle to the floor. Warm, the car starts
normally. We cleaned the fuel system with the Carbonclean system without a noticeable result, then replaced the plugs. The old plugs showed some
difference between the left and right banks as to color, the right bank seeming to be running a little richer (tan color) and the left bank about normal
(slightly gray). After the plugs were changed, we have a miss in two or more cylinders, which never fire. We are trying to figure a way to test each
cylinder to find which ones are not firing, and any helpful suggestions would be much appreciated.
Also, what would cause the cold enrichment to be so excessive. We have replaced the CTS and cleaned the connector.
Bob Cogswell