On the V-6 engine, oil in the spark plug tubes can cause a misfire. Resealing the tubes as part of replacement of the valve cover gasket and replacing the spark plug wires will commonly repair this issue. On newer models the misfire can result in illumination of the Check Engine Light.
Oil in Spark Plug Tubes May Cause Misfire on Honda Passport
Average mileage: 330,000 (330,000–330,000)
Engine affected: 3.2L V6
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I am only getting 8 miles to a gallon.
My Honda Passports check engine light is on and I'm attempting to fix it the easy (cheap) way. I replaced the spark plugs and now the check engine light is on, but it blinked a few times. It does have a slight oil leak, and the old spark plugs had oil on them. What should I do, and how can I make sure I installed the spark plugs correctly...thank you