1996 Subaru outback 4cyl misfire code 0301, 0303

fordx4
Wed, 26 Jan 2011 00:59:47 +0000
Maintenance/Repairs

This is my friend’s car and I have never looked under a Subaru hood before. She is getting an intermittent check engine light with codes for cylinder misfires on one and three.

Today, I inspected the plugs and all four looked identical, a nice uniform tan color and good condition. No sign of deposits or oil. Did a compression test and found the driver’s side bank at 155/150 and the passenger side bank at 185/190.

My question at this point is which side is cylinders 1 and 3? The front-most cylinder is on the passenger side. Is this the number 1 and 3? If so, then the low compression on the other bank cannot account for the misfire.

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