Originally Posted by
droopaloop
Driving on a two lane road, I went to pass a car. Down shifted to fourth and floored it. While passing the crossfire losses power and has a bad vibration from the engine when the accelerator is pressed, it kind of felt like one side of the engine wasn't firing. I pulled off the road and when it got to idle speed it shut off. I checked the engine to see if there were any obvious breaks and/or loose connections. I didnt see anything and went to restart it. It fired back up normally and i was able to drive it just fine afterwards. Kind of thinking coil packs have a bad connection or they are going bad themselves. Any thoughts?
Codes pulled after : p0128, p0410, p0406, p0174, p0171.
Also i changed gears and the vibration happened in 2nd and 3rd gears so it is unlikely it is clutch or transmission related.
Do a google on those codes, enter each one, one at a time, into google like this:
"Mercedes P0128" and it will draw you a picture of what the ECM sees. Ignore P0410 for now, that's the stupid air pump, it very likely has
nothing to do with your complaint. Indications are of a too lean burn, misfire on cylinder 6, and the engine is operating below normal temperature. If you got on it with the engine cold, ignore P0128.
I'd suspect MAF, Throttle body, MAYBE plugs (if you are over 80,000 miles, change the plugs and plug wires, made tremendous difference in my Graphite and I had the last three codes plus 400, 401, 403, etc.).