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2004 Forester: P0301 - P0304, P1447
3 messages, Last post on Mar 15, 2011 at 10:21 AM
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What is this discussion about? Subaru Forester, Auto Repair, Engine
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#1 of 3 2004 Forester: P0301 - P0304, P1447 by figsys
Mar 15, 2011 (6:02 am)
2004 Forester getting check engine line codes P0301-P0304 and also P1447 every 2 weeks. Car has ~105000 miles.The first four are cylinder misfires; last one is some emmision code. Anyone know what it is and what this can be due to? I have the same problem at 60K (except for P1447) and now it's back.
- xwesx (Mar 15, 2011 9:37 am)
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#2 of 3 Re: 2004 Forester: P0301 - P0304, P1447 [figsys] by xwesx
Mar 15, 2011 (9:37 am)
Replying to: figsys (Mar 15, 2011 6:02 am)
Just curious, what work did you have done at 60,000 after the first event? With all four cylinders recording misfires, I have to think it is a fuel or spark issue. If your plugs and/or wires are old, that may be a first place to start. If the car is not running well, it is likely that emissions codes could follow, so I would start with addressing the engine health and see if that clears up the other issue(s).
- ateixeira (Mar 15, 2011 10:21 am)
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#3 of 3 Re: 2004 Forester: P0301 - P0304, P1447 [xwesx] by ateixeira
Mar 15, 2011 (10:21 am)
Replying to: xwesx (Mar 15, 2011 9:37 am)
Check: * fuel filter
* fuel pump
* ignition wires
* spark plugs
* ignition coil
If all 4 misfire it can't be a fluke.
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