P0302 Cylinder 2 misfire - Hyundai Elantra Forum
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post #1 of 2 (permalink) Old 01-06-2020, 03:07 PM Thread Starter
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P0302 Cylinder 2 misfire

2012 Elantra Sedan with about 125,000 miles.

Car is in for service - it started very rough and died on my wife as she was parking today.
Cylinder 1, 3 and 4 all tested at 160 psi. Cylinder 2 at 110 psi.
They said they heard a noise from the engine at idle.
Alternator shows to have low amps during charging.

They said the spark plugs and ignition coils are fine at this time.

I haven't spoken with them yet. Any suggestions on how to fix this?

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post #2 of 2 (permalink) Old 01-14-2020, 06:19 PM
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Sounds like a bad alternator. Low voltage affects the computers which affects ignition. Does it require a jump start from as if it has a dead battery?
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