I wouldn't expect it to be the injectors.
More likely a sensor that reacts to temperature changes.
There are ways of testing temp sesnors with a multimeter, a pot of boiling water and a thermometer.
A real time scan tool may be of more help.
I'm not talking about a code reader, I mean a scan tool.
Plug it in and you can see what the computer is "seeing", if the computer thinks that the engine is 195 degrees when you first start it, then the computer is going to use fuel curves and timing advancements that don't work so well when the engine is stone cold.
You do have a service manual for your car dont you?
A visual/touchie/feelie inspection of your suspension will probably identify the vibration/noise.
Wednesday, December 10th, 2008 AT 8:33 PM