2008 Honda Accord — going one inch smaller for winter wheels

If it were in my driveway, if a shop can't duplicate it on the 2008 Honda Accord, bring a video plus freeze-frame data, not just a story. If the cheap test changes it, stop and reassess. If you share a photo of the worksheet, easier to sanity-check. I already checked the easy fluid levels.

It did going one inch smaller for winter wheels twice this week, both times after sitting. No change in mileage feel. I'm in no rush to be a hero on it.

OP update: scanned the 2008 Honda Accord again and still only have the one pending code, no new lights. Happens in gear, not in park, for what that's worth.

I wouldn't throw parts yet. Write temp, speed, and in-gear vs coast when the 2008 Honda Accord does it — then decide on parts. That's the branch I'd chase this week. When does it actually happen? Your commute and mine probably aren't the same, but the test still applies. Doing the boring step first on purpose.

I'd want a measurement, not a hunch. Move a coil or plug on the 2008 Honda Accord if it's cylinder-specific and see whether the code follows. That's the branch I'd chase this week. This is from a 2008 Honda Accord in Florida with 206,000 miles. I'd want a dollar figure or a measured spec, not 'should be fine.' Not trying to scare you — just skip the expensive first guess. Not interested in a five-hour wait for a shrug.