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02-19-2007, 03:01 PM | #1 | |
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subwoofer hookup and gas mileage questions
I'm moving my subs from one car and putting them into my '02 300m. What's the best or easiest way to run the power wire from the trunk to the engine? I can't seem to find any place to run a wire past the dash.
And another, but unrelated, question about the gas mileage of the car. I only seem to be getting about 250 miles per tank, 300 tops. My average mpg is about 20-21, and most of my driving is on the freeway. I've replaced the air filter and plan to check the fuel filter when the weather gets a little dryer. I've only had the car about 3 1/2 months.
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'00 Grand Prix GTP: KYB struts (Gone, trade-in) '02 300m (R.I.P. Dec '07, the Uhaul won) '03 Jaguar S-type R '73 Duster |
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02-20-2007, 07:24 AM | #2 | |
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Re: subwoofer hookup and gas mileage questions
If I remember rightly, many folks have gone either under the car or under the carpet. In going under the carpet they removed their seats and did the job. You have been to the 300M club, so check out the search feature. It has been documented many times with pictures in many cases.
The mileage issue may be something as simple as your downstream O2 sensors or may be something else, too. Once again, use the search feature on the 30M site.
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TinMan 99 M Cypress Green, performance rear sway bar, Brembo rotors w/CT3 pads, tint, Sirius, K&N intake, debadged, many other mods. |
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02-20-2007, 09:18 PM | #3 | |
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Re: subwoofer hookup and gas mileage questions
I don't think your mileage is going to improve much, these are big heavy cars with strong engines. I've had my 2000 300M for 3 months now, MPG hangs around 22. 24 if I baby it. I like the car a lot even though it is has a huge appetite. I don't think they were designed with fuel economy in mind...
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02-21-2007, 06:58 AM | #4 | |
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Re: subwoofer hookup and gas mileage questions
I regularly get 24 with a mix of highway and city. Many others get upwards of that. When did you last change your plugs? Possibly your TB needs cleaning. How many miles on your ride? I have had an M since '98 and have driven (2 of them) over 225,000 miles.
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TinMan 99 M Cypress Green, performance rear sway bar, Brembo rotors w/CT3 pads, tint, Sirius, K&N intake, debadged, many other mods. |
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10-02-2008, 07:09 PM | #5 | |
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Re: subwoofer hookup and gas mileage questions
The fuel mileage you are getting is about the sae alll around. I get on average of about 21, mixed hwy and streets.
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10-05-2008, 12:34 PM | #6 | ||
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Re: subwoofer hookup and gas mileage questions
Quote:
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TinMan 99 M Cypress Green, performance rear sway bar, Brembo rotors w/CT3 pads, tint, Sirius, K&N intake, debadged, many other mods. |
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10-09-2008, 03:59 AM | #7 | |
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Re: subwoofer hookup and gas mileage questions
I had a 99 300m and got 30mpg and now have a 02 special and get 26-27mpg
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10-09-2008, 06:21 AM | #8 | ||
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Re: subwoofer hookup and gas mileage questions
Quote:
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TinMan 99 M Cypress Green, performance rear sway bar, Brembo rotors w/CT3 pads, tint, Sirius, K&N intake, debadged, many other mods. |
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02-22-2009, 05:06 PM | #9 | |
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Re: subwoofer hookup and gas mileage questions
With mine we went under the carpet and had to take the whole back seat pretty much out the whole process was a huge pain, but well worth it without any of the wires showing in the car. Also to add on make sure you add another battery for the amp power, depending on how powerful they are. I didn't do that the first time and it ended up having me replace my alternator.
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02-23-2009, 07:41 AM | #10 | ||
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Re: subwoofer hookup and gas mileage questions
Quote:
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TinMan 99 M Cypress Green, performance rear sway bar, Brembo rotors w/CT3 pads, tint, Sirius, K&N intake, debadged, many other mods. |
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04-27-2009, 02:47 PM | #11 |
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Re: subwoofer hookup and gas mileage questions
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