September 6, 200520 yr How do you do fuel pressure check? I have the gauge and all. Do you do it at the fuel pump? Have to disconnect fuel lines? Thanks.
September 6, 200520 yr Easy there speedy........ Just pull a fuel line in the engine compartment and attach the guage. Two people is best, one to crank and one to watch. If that's not possible then pull a line close enough to the wind screen to be able to read it when your starting it up. Later, Tim
September 9, 200520 yr does anybody know if a dying fuel pump can temporarily raise your gas mileage? mine's very good on gas but from what i hear from everybody else, subarus aren't that great on gas.
September 9, 200520 yr Moved reply to new thread http://www.ultimatesubaru.org/forum/showthread.php?p=338169#post338169
September 9, 200520 yr If you have bought the guage, may as well hook it up permanently, so you can monitor your fuel pressure while driving. You'll need a "tee" connector with 5/16 ends for the fuel lines, and an adapter for the guage. Getting better mileage before the pump dies doesn't make any sense to me. If it is a FI car, the flow will be regulated, so it will either be "go" or "no go". If it is a carbed vehicle, you would be pumping more gas manually to smooth out the intermittant drops in pressure. Your pump could very well be going out, and the guage will help you determine that. But I think your increase in MPG's is due to some other (unrelated) factor. good luck, John
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