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lollersk8s
HOLY FUCK I AM RETARDED
 
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Misfire cyl #1, there's your problem? [pic]

Not my car... '06 Galant 2.4L

Obviously has a misfire, spews white smoke out of tail pipe, code for #1 misfire stored. I pulled the plugs, they look good on the inside, but coated in oil from a leaking VC gasket and one coil pack was cracked on the side. The one that was cracked was also different from the rest - it had a black top, while the rest have a white top

Anyway does a cracked coil like this pretty much mean it's fucked? Never seen a cracked one. I swapped it with #2, but the car hasn't thrown a code after a quick drive, although it still misfires.

Pic - http://i.imgur.com/wQZtzC4.jpg

Ps. also, (IMO non-related) car has code for lower o2 heater circuit bank 1, so I guess i'll be getting a pair of new o2s too.
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Originally Posted by she nice
i do drink but it's not as effective for immediate relief
Old 01-05-2015, 11:55 AM lollersk8s is offline  
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lollersk8s
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afaik the crack means the coil will fire out the side through the crack like this:

http://www.supraforums.com/forum/sho...-when-it-s-bad.
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Originally Posted by she nice
i do drink but it's not as effective for immediate relief
Old 01-05-2015, 11:57 AM lollersk8s is offline  
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gribly
 
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Yeah, probably got a bit of arcing going on. Black means running dirty, so fix the obvious first by swapping the coil with a new or known good one. The o2 issue does not affect operation once the car is warmed up, so if something has to slide and not get fixed due to cost, let it be that.
Old 01-05-2015, 12:15 PM gribly is offline  
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gribly
 
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You mean the electrode is black on the plug that goes with the cracked coil, right?
Old 01-05-2015, 12:17 PM gribly is offline  
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lollersk8s
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By black I meant the top part of the coil that has the epoxy - it comes that way from factory. One is black, three are white. The black one looks much older, and is the one with cracks. The only thing that makes sense to me is that some mechanic used an old coil at some point in the past, idk Car has 150k

I bought a new coil and put it in, voila - problem solved. Now I just need to do the lower O2.

Is it best to replace those in pairs? The other is probably not far behind.
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Old 01-06-2015, 04:31 PM lollersk8s is offline  
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