2001 Dodge Ram miss fire #6

Tiny
CONSTRUCTIONMAN70
  • MEMBER
  • 2001 DODGE RAM
  • V8
  • 4WD
  • AUTOMATIC
  • 151,000 MILES
I have a code coming up as po3o6 saying miss fire. Check injector #6 which works fine. Change cap, rotor, plugs.O2 sensors both of them. Change pick up coil in distrubter. The obd2 tells me that that code comes back after clearing it and driving it for a while
Tuesday, October 20th, 2009 AT 8:18 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the compression for the no. 6 cylinder

Engine misfires can be caused by worn or fouled spark plugs, a weak spark (weak coil, bad spark plug wire), loss of compression, vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), an EGR valve that is stuck open, dirty fuel injectors, low fuel pressure, or even bad fuel.
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Tuesday, October 20th, 2009 AT 9:17 PM

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