Trouble code PO306

Tiny
DCANEZ
  • MEMBER
  • 2007 CHRYSLER 300
  • 3.5L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 195,000 MILES
PO306
I have a miss fire on cylinder 6
I change put the plugs and coil packs, installed a new EGR vavle,
But I still getting the same code PO306
Any idea to what and try next?
Also today I got what looks to be a red flashing lighting bolt on the display cluster.
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Tuesday, February 9th, 2016 AT 12:30 PM

9 Replies

Tiny
JOHNNYT73
  • EXPERT
Try disconnecting the battery and leaving it that way for about 10 min. Reconnect and see if does anything. I have seen weird things with chrysler cars and misfires.
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Tuesday, February 9th, 2016 AT 12:39 PM
Tiny
DCANEZ
  • MEMBER
Even if after I clear the code I the car still shakes and the code canes back, but I'll try this, I had the battery off when I installed the new plugs coils and EGR valve
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Tuesday, February 9th, 2016 AT 12:45 PM
Tiny
JOHNNYT73
  • EXPERT
Ok, also try putting in some fuel system cleaner
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Tuesday, February 9th, 2016 AT 12:45 PM
Tiny
DCANEZ
  • MEMBER
What cleaner do you recommend?
I put one in STP injector cleaner cuz I was thinking it was an injector issue
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Tuesday, February 9th, 2016 AT 12:49 PM
Tiny
JOHNNYT73
  • EXPERT
There are a few. Seafoam, Techron, and Lucas
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Tuesday, February 9th, 2016 AT 12:50 PM
Tiny
DCANEZ
  • MEMBER
Ok
I was told about Seafoam was good I'll give it a try.
But of this don't help
You think it could be the injector?
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Tuesday, February 9th, 2016 AT 12:52 PM
Tiny
JOHNNYT73
  • EXPERT
Possibly
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Tuesday, February 9th, 2016 AT 12:52 PM
Tiny
DCANEZ
  • MEMBER
Ok thanks
Work just about fixing everything in my cars but
I have never changed out an injector, so I'll have to look it up on how to. Lol
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Tuesday, February 9th, 2016 AT 12:56 PM
Tiny
HMAC300
  • EXPERT
Have it scanned for codes and freeze frame it by a pro he can check misfires if a sensor is screwed up. The only thing you can do now is check compression an d fuel pressure with a gauge. Auto parts rent it. Low fuel pressure as well as a vacuum leak can cause these as well as basic engine problems.
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Tuesday, February 9th, 2016 AT 3:08 PM

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