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My 98 LX was stalling usually in hot weather and usually only when Idling during start-up. It did occur while coasting at 65 MPH recently, which was sort of scary and I realize I need to address the issue.

Putting in an injector cleaner with a tank of gas seems to remedy the issue for about 1000 miles. But obviously this is a bad long-term solution.

My logic leads me to believe that its a spark plug issue. I don't think those cleaners could have any effect on fuel pump or filter (and honestly I'd prefer not to mess with those). Current plugs have been in use for ~35K miles, not sure of brand. Recent maintenance was timing belt change around 10K miles ago and new battery 5k miles ago. Car is around 125K.

Looking for feedback on this diagnosis, and if there's any other recommendations as I'd hate to change the plugs and still have this issue.

 
Rep Power: 313

https://www.civicforums.com/forums/3...e-posting.html

Start there. Plugs are regular maintenance. If your too cheap to change your spark plugs you shouldn't own a car.