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**8695Beaters** · 02-14-2008, 06:43 AM

Make sure you give your car some time to warm up. Make DMV the last stop on your list so the cat converter has some time to warm up. My car read 221 ppm when my dad drove it straight to DMV (failure). When I added an extra 20 miles to the trip, it registered 4. No other changes.

If you do a tune up (which will do nothing but good for your engine), gapping and cleaning your old plugs will be about as effective (and a lot cheaper) than replacing them. It's not perfect, but free if you do it yourself ($2 if you don't have the gapping tool). The gap should be right around 1.0 mm (standard for a lot of Hondas). I would add a shot of fuel injector cleaner instead of a fuel filter, but whatever you choose is up to you.

02-14-2008, 06:43 AM	#4 (permalink)
8695Beaters A Strapping Young Lad Join Date: Sep 2007 Location: Wilmington, Delaware United States Posts: 2,245	Make sure you give your car some time to warm up. Make DMV the last stop on your list so the cat converter has some time to warm up. My car read 221 ppm when my dad drove it straight to DMV (failure). When I added an extra 20 miles to the trip, it registered 4. No other changes. If you do a tune up (which will do nothing but good for your engine), gapping and cleaning your old plugs will be about as effective (and a lot cheaper) than replacing them. It's not perfect, but free if you do it yourself ($2 if you don't have the gapping tool). The gap should be right around 1.0 mm (standard for a lot of Hondas). I would add a shot of fuel injector cleaner instead of a fuel filter, but whatever you choose is up to you. __________________ Project Sil-E: The New Black In morning they will come alone And we arise as if a new day's dawned for everyone But now we know As much as we don't show OUR WORLD HAS BEEN BLACKENED! Last edited by 8695Beaters; 02-14-2008 at 04:06 PM.