99 viggen gas mileage

 
Old 02-08-2010, 03:15 PM
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Default 99 viggen gas mileage

hey all i have a 99 viggen with 156k, im only getting 19.4-20.4 mpg on the highway and in the city.. it has a bsr exhaust and intake thats it, has a new ign casset and ngk plugs.. what can be casuing me to only get 240 miles outa my tank??
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Old 02-08-2010, 04:47 PM
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when was your last fuel filter change? is the fuel pump working properly?
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Old 02-08-2010, 05:12 PM
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That's bad?
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Old 02-08-2010, 09:34 PM
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from what i read it isnt the greatest other people post 25-30 mpg... the weird thing with my car is sometimes it will feel really quick then other times its sluggish... i do have a flexpipe leak and 2 other leaks at joints but i will take care of them as i get the $$ to do so.. i never touched the fuel filter.. i just bought it 3 weeks ago.. where is the filter and how hard is it to change?
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Old 02-08-2010, 11:56 PM
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filter is next to the tank... really easy to change and cheap too. Replace all the vacuum hoses while you're working on the car. Also 25-30 isn't a given. Driving style, tire pressure, alignment, extra crap in the trunk all play a role in this.
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