Rep Power: 0

I have 5 misfire codes on my EM2 Cylinder 1 2 3 4 and then random misfire code. How do i solve.. also when i drive down the highway and cruise at 80, now when im try to pass 80 0r 90 with out stickin my foot all the way in teh throttle the car will sputter from richness but why is my check engine flashing... Can some one shine some light on the situation... cant figure it out... thank you

 
Rep Power: 314

i had a misfire for two years...

turned out to be a bad head gaskett...

what makes you think your sputtering due to it being too "rich?"

my random guess is head gaskett tho...

 
Rep Power: 262

^what he said...........headgaskets can cause this. I had this same code from my valve cover gasket tube seals leaking oil onto the plugs...they also caused misfires at highway speeds........easy fix for me though start w/ the easy ****. Compression test, leak down test....etc.....baroscope.....