P0302, Power loss

stillstock

Member
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2003 MP5
Hey guys,
I've been having some issues with my P5 for the past week. I was driving at about 40 mph, and then felt a drop in power. Came to a stop and started to accelerate again, but she had no power till about 2,500 RPM. CEL came on after that. Same problem. No power under 2500 RPM. I got a fault code P0302. I replaced the coils, plugs, and wires about a year ago. After getting the code, I swapped the cylinder 2 and 4 coils, to see if the fault would follow the coil. Still showing fault on #2. I checked the plug and it looked a little grimy, so I replaced it since I already had it out. The problem continued. This morning she ran fine until she warmed up. Then the problem started again. Not sure where to go from here. Fuel injector maybe? Just wondering if anyone else has had these issues. Also, no tears or cracks in the intake boot. Any advise would be appreciated.

Thanks.
 
Would the O2 sensor spit out a specific fault code? I drove it again yesterday, and now I am getting random misfire codes for all cylinders. Dirty fuel injectors maybe?
 
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