Compression Ignition Addict
Join Date: Sep 2007
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White/blue smoke, rough engine, hard start
I have a 2006 I just purchased that is running rough like its missing a cylinder and puffs whitish/slightly bluish smoke. (I bought it for a good deal) I checked out the FICM 48v key on, 48v while starting and 48v while revving. So I think that is okay.
I ordered an auto enguity unit and ran some diags on it. While the engine is running I disable one cylinder at a time. 1,2,4,5,6,8 when disabled all make the engine stumble so they are contributing. 3 and 7 disabled resulted in no change in the engine performance. So I suspect those 2 cylinders to have a bad injector.
I pulled #3 injector and it looks brand new. The tip is not burned. Is it possible for it to go bad internally while looking perfect on the outside? How can I test it?
I took it ou