24 Valve Engine and Drivetrain Discuss the 24 Valve engine and drivetrain here. No non-drivetrain discussions please. NO HIGH PERFORMANCE DISCUSSION!

Low MPG

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Old 08-12-2007, 08:35 PM
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Originally Posted by get r done 911
will this show codes even if there is no check engine light on
Have you tried the key on/ off 3 times and leave it on, check and record anything that comes up in the odometer window. Not foolproof, but it would be a start.
Old 08-12-2007, 09:24 PM
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should i see words or a code first ive heard of this thanks for all of your help
Old 08-12-2007, 09:40 PM
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You will see a number code(s). When it's done it will read "P Done".
Old 08-13-2007, 02:14 PM
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well i tried the key 3 times both come up and say ---------- than p done so i guess nothings wrong there, hopefully ill make it to auto zone tomm and see what the computer says thanks for the help
Old 08-14-2007, 10:40 AM
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I am assuming when you say you drive it down to 1/4 tank and then divide the miles by the gallon you are filling the tank full and using that for the gallon figure - right? (I know people that use their gauge and figure they have used 3/4 of their tank so they use 75% of 35 gallons - when the gauge is rarely accurate like that.) Just a thought.
Old 08-14-2007, 06:23 PM
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yep thats what i do
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