Runs rough at idle and cruising. If you nail it is smoother than silk with all power. I have changed wires, plugs, egr, fuel filter, fuel pressure is in specs, in other words a complete tuneup. It ran great before the tuneup but turned over for 5 seconds before it would start. I pulled the plug wires with it running and 2, 3 and 4 showed a change at idle. Ok, then I pulled the plug in #1 and turned the engine over and had plenty of spark. Could the injector be plugged at idle but work fine when you really take off or just speed up on the road? Any help muchly appreciated. This car is actually mint condition in and out even with the miles on it - it looks brand new! Oh yes, the cat converter has been cleaned out so there is no restriction in the exhaust
have the same problem?
Friday, October 12th, 2012 AT 10:44 PM