cornhusker
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I've got an 01 Pontiac Bonneville with the 3.8. She's got about 195K on it. Up until a week ago everything was running just fine. Then the car start chugging at idle. I have gone through the basics and can't seem to figure this one out. I think that I'm getting the P1404 (EGR vavle error from cylinder 6 misfire P0306 error code). The basics include new champion plugs and wires. New coil pack and fuel filter. I even swapped out fuel injectors from another cylinder. Whats possibly the most alarming about this issue is that not only is the Service Engine Soon light on, but it even flashes at high speeds!
I currently do not hear a motor knock nor do I hear any kind of vacuum leak. I can smell a slight odor of unburned fuel mixed with rotten eggs when the vehicle is idling. This issually suggest cat converter, but its got too many miles for that fix plus why does the issue always seem to follow cylinder 6?
Is it possible I don't have any juice going to the injector on 6? Is it possible I have a stuck valve? How can I check both of these? Any ideas would be appreciated.
Thanks,
I currently do not hear a motor knock nor do I hear any kind of vacuum leak. I can smell a slight odor of unburned fuel mixed with rotten eggs when the vehicle is idling. This issually suggest cat converter, but its got too many miles for that fix plus why does the issue always seem to follow cylinder 6?
Is it possible I don't have any juice going to the injector on 6? Is it possible I have a stuck valve? How can I check both of these? Any ideas would be appreciated.
Thanks,