Have a 95 Legacy 2.2L that has started losing power while going up hill or under a load. The check engine light flashes for about 30 seconds and the power comes back. The code is a number 4 cylinder misfire. I have replaced the plugs and ignition wires with not change. Runs excellent otherwise, smooth idle and drives great other than the power loss under load. Any ideas where I should look next? Thanks for the help.

Most likely an ignition coil.

Especially if it only happens under load, the coil is getting weak.

Miles?

I'd do a Compresssion and Leak Down test. on ol' #4.

TD

Edited November 2, 20169 yr by wtdash

maybe spark plugs and plug wires? Is what's on there old, maybe worn out??

Thanks for the suggestions. I replaced the coil tonight and will see if it makes a difference. It's strange because the problem is intermittent. If I went up the same hill 10 times it would probably lose power 3 out of those 10 and be fine the rest.