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Bite the bullet, and take it to your Honda dealer for their scope and computer diagnostics. I'd have absolutely no faith in a shop that broke your coil and then charged you to fix what they broke.
There are too many possibilities in a 17 yo car w/>100,000 miles. They boil down to air, spark, and fuel, but there are lots of permutations like vacuum leaks, valve timing, and more. So far, all you've mentioned checking are spark and compression.
__________________
Darrell
Boycotting Exxon since 1989, BP since 2010
Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac? George Carlin
Mean Green Toaster Machine
49.5 mpg avg over 53,000 miles. 176% of '08 EPA
Best flat drive 94.5 mpg for 10.1 mi
Longest tank 1033 km (642 mi) on 10.56 gal = 60.8 mpg
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