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  #1  
Old 09-26-2012, 06:07 PM
My5thsubie12 My5thsubie12 is offline
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Join Date: Aug 2012
Location: Lee Summit, MO
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Engine misfire on cylinders 1&2

Anyone please help im at wits end with this subaru its the 1st subaru that I have ever had any trouble with. We bouth the car and it was sitting for a year, my grandfather put new 91 octane in it with the 1/8 tank of old fuel. I told him not too but he is stubborn. The car never has run great one day and every since its been horrible. I have to have transportation to ER(work). CEL is on for misfire in cylinder 1 and 2

We pulled plugs checked compression= all cylinders above 180psi = good
Changed out plugs
Replaced all the vacume lines
Replaced the ECU
Ran sea foam in full tank 0f 91 octane
Even had a subaru technician some out and he ran subaru engine cleaner, adjusted all the idle controls and hooked it to a computer.
I was running sooo smooth and great
Today we unhooked battery to replacxe wiring for the altenator, after starting it up its back to the same issues and now its sounds like its back firing only under load and going uphill. Ive about had it... I still love Subarus but Ive about to be drained dry with this one.

If anyone has any suggestions please let me know I would appriciate it greatly Thanks!
_Tyler
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  #2  
Old 09-26-2012, 08:41 PM
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dannmarr dannmarr is offline
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Re: Engine misfire on cylinders 1&2

Did you check your coils?
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  #3  
Old 10-02-2012, 06:01 PM
My5thsubie12 My5thsubie12 is offline
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Re: Engine misfire on cylinders 1&2

Quote:
Originally Posted by dannmarr View Post
Did you check your coils?
yes I checked them they seemed to measure within specs a little on the lower sode but within specs and we just replaced all injectors
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Old 10-02-2012, 06:52 PM
oab_au oab_au is offline
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Re: Engine misfire on cylinders 1&2

Quote:
Originally Posted by My5thsubie12 View Post
yes I checked them they seemed to measure within specs a little on the lower sode but within specs and we just replaced all injectors
When you say "cylinders 1 and 2", you do mean both front cylinders, one each side, or both on the one side?

You say you checked the coils, i guess you used a multimeter.
You really need to check the coil boot and the surface of the coil for spark tracks that will short out the spark under load.
Look for a black track that runs down the side of the coil from the plug end. If you find one, just scratch the track out with a small pointed scribe, and spray with a silicon oil spray.

Harvey.
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  #5  
Old 10-02-2012, 07:59 PM
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svxfiles svxfiles is offline
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Re: Engine misfire on cylinders 1&2

Quote:
Originally Posted by oab_au View Post
When you say "cylinders 1 and 2", you do mean both front cylinders, one each side, or both on the one side?

You say you checked the coils, i guess you used a multimeter.
You really need to check the coil boot and the surface of the coil for spark tracks that will short out the spark under load.
Look for a black track that runs down the side of the coil from the plug end. If you find one, just scratch the track out with a small pointed scribe, and spray with a silicon oil spray.

Harvey.
AND look for hairline cracks that can allow the loss of the cooling oil inside.
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  #6  
Old 10-07-2012, 09:49 AM
FM977 FM977 is offline
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Re: Engine misfire on cylinders 1&2

Timing belt could have slipped. Remove the cover and see if any shredded belt is visible.
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  #7  
Old 07-01-2015, 05:14 PM
BRZCory BRZCory is offline
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Re: Engine misfire on cylinders 1&2

I know this is a longshot, but did you ever figure it out? My car is also not firing on cylinders 1 and 2.
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