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What causes random mis-fire code?

689 views 2 replies 2 participants last post by  TriBlkCobra  
#1 ·
I took the car in for the leaking head gasket TSB. When I got the car back my check engine light flashed at me and then stayed on. The code was a random mis-fire. The dealer tore the head off again to see what caused the code and couldn't find anything. Before placing everything back, they ordered a new head. 4 x since, the same code has hit the light. It is always on high acceleration from 1st through 4th (yes, the track) and usually by the 2nd pass. I've never felt the car "miss" and trap speed is 98-99mph. I've had the car at the track a number of times before the head gasket repair and never had a problem. Any ideas or suggestions of what's causing it?

thanks~