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From 450mile range to 330mile range?

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Old 08-29-2005, 10:19 PM
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Default From 450mile range to 330mile range?

I usually hit almost 450 miles per tank in my 01 a8l. Suddenly I'm running out at 330 for the last 3 fillups. What gives?
Old 08-30-2005, 04:08 AM
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Default What's different?

Same fuel brand and grade? How old are the plugs? Has performance diminished? (possible clogged cats) Driving the same routes, w or w/o ac, getting stuck in traffic?

There are so many variables to look at, you really need to make a short list of anything that's different in the past 3 weeks to start the troubleshooting.
Old 08-30-2005, 06:05 AM
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Default same gas, new plugs, same routes, less a/c, same traffic

Just had the mass air flow sensors repaired/replaced at HBL, could that have affected it?
Old 08-30-2005, 08:50 AM
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plugs/MAF would be culprits. Airfilter? Maybe some hoses aren't put together right?
Old 09-05-2005, 11:01 PM
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Default Re: From 450mile range to 330mile range?

Must be the wheels... Did this drop happened after you installed your new set of wheels?
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