p300

  1. S

    Idle Misfire 2011

    I really need some ideas here, been fighting this for about six months now, the truck runs great and is my daily driver. Scanner shows misfires on cylinder 1 and 7 only when idling and after its warmed up. at 800rpms it misses like crazy at 900rpm its smooth 5.7 166000 miles These are the...
  2. Eray

    System lean both banks

    Just started yesterday as i got home home from work and im stumped i fixed a few vacuum leaks changed the oil and pcv valve since last week started getting a random misfire on multiple cylinders code too any ideas??? im off work till monday and definitely gonna do the rest of the front end maybe...
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