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misfire
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  1. First Generation MDX (2001-2006)
    New motor swap into my 2005 a couple of days ago. We have been running her intown and on the highway. when given full gas at about 85-95 MPH the codes for 0304, 0305, and 0300 happen complete with the flashing motor and VTM. there isnt any real sign of misfire (as in electrical) as she...
  2. Problems
    I am receiving error codes for all pistons misfiring and both catalytic converters being under. After a little research here, I settled on first checking and adjusting valve clearance before dropping $1600 on new cats. See the picture below of what I found under the valve covers. Notice how...
  3. First Generation MDX (2001-2006)
    Hey all so I have spent hours and hours trying to research and get info on what is causing the misfire on my 05 MDX. It isn't constant but has slowly gotten worse over the last month to where it is about 30% or so of the time I drive it. Already adjusted the valves, replaced plugs, and checked...
  4. First Generation MDX (2001-2006)
    Hello all, I have a 2005 MDX 157,000 miles. For last 2 months i have been trying to diagnose the source of my cylinder 1 misfire(PO301). I've noticed that when i leave the car outside over night and start it is when it misfires and sometimes the VTM-4 light comes on with it. If i shut off and...
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