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Old 12-11-2008, 05:43 PM   #1
carrman
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Default Flashing CEL

I'm working on a friends 2000 Legacy, and have come across an interesting problem. When it's started for the first start of the day in frezzing weather, it has a definate miss, and flashing CEL to go along with it. I've been told it's either a coil pack dying, or bad plug wires. Plugs are new NGK's, and wires are a couple years old. Again, this problem is only for the first start of the day in freezing weather. Suggestions anyone before I just throw parts at it?
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Old 12-11-2008, 05:46 PM   #2
LetItSnow
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Get the code(s) pulled before you do anything. It's the best way to diagnose, and we can't do a lot without them.

If you find out you're getting a misfire, you can swap the wires left-to-right, and if the misfire follows, it's a safe bet that your problem is with the wire.

If it turns out to be the coilpack, and if you can wait, I can unload one to ya for cheap!
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Old 12-11-2008, 05:47 PM   #3
carrman
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Did that, but it isn't logging any.
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Old 12-11-2008, 08:11 PM   #4
sc00ter
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Quote:
Originally Posted by carrman View Post
Did that, but it isn't logging any.
strange....

My guess would be an 02 sensor going bad.
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Old 12-11-2008, 08:14 PM   #5
RaceFaceXC
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reset the ecu and wait for the CEL to come on again. then try pulling them again.
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Old 12-12-2008, 10:06 AM   #6
carrman
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Found a corroded terminal on the coil pack. Cleaned it up, and fired it this morning, only to haveit misfire again, but for a shorter period of time. Beginning to think it's a bad coil pack, or I need new wires. Wires are 3 years old.
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Old 12-12-2008, 02:15 PM   #7
Vizzionz
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have you pulled the spark plugs? if not, pull them and check them out!! also recheck the plug wire connections to make sure they are all tight and secured in place.
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Old 12-21-2008, 01:00 PM   #8
fornetti14
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I hope you don't have what I had with my flashing CEL - burnt exhaust valves on the #4 cylinder. I had a Cylinder #4 misfire CEL code plus the car was obviously misfiring.
A simple compression check found that I had only 80 psi of compression on #4 and 180 - 185 psi on the rest.
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