All the gearheads...please read

[1nst1nct]

allrighty well here we go, my 240 has been trouble starting keeping a steady idle etc etc, i narrowed it down to 4 things:
Clogged Fuel Filter
Clogged Cat Converter
Clogged Intake
Bad Fuel Pump

My solution:
bought all the parts and now working on replacing them

My problem:
well to replace the fuel filter i somehow have to release the fuel pressure, so how would i go about doing this??

if anybody has pages to diy's on these 4 things please post them here, any help is greaty apriciated

by the way its a 1990 240sx, thanks to all

[Blues13]

Just unplug the fuel pump fuse in your engine bay and start your car.. your car should start up and die a few seconds later because of fuel starvation. The fuel filter will still have a lot of fuel still inside, but the pressure in the line will be gone. Replace filter, and fuse when done...

[BeteNoir]

If it's a stick this is quicker - Stall the car in gear and disconnect the battery. Replace filter. Reconnect battery. Reset clock.

[dvdevo]

you sure its not the sensors right? like o2 n stuff

[adey]

like the first reply said^^
Except I'd add that you crank it a few times rather than just once (after you've removed the fuel pump fuse) to get as much gas out of the lines/filter as possible.
Then, go open your gas cap to release any pressure in the tank...
then disconnect the battery (neg), and now you're free to unplug the fuel filter, which, by the way, is a bitch to pull off. The hose is usually pretty stuck on there.

Also, another suggestion would be to do this all after your car has cooled down a little; if you drop (or god forbid SPRAY) fuel on your exhaust manifold or even the heat shield, you'll probably have a pretty big deal on your hands. :)

[240meowth]

ahh, now i know the mistake i made... :D

1st, didn't disconnect battery...

when i was doing the fuel filter change, i unpulled the fuel pump fuse, and cranked the car till it can't start no more. So i went onto my casual way of changing the fuel filter. It all went will till... i pull the filter off, the gas started leaking from the fuel line, lot of them... and i realized, this is not a good situation, and found a pan to catch all the fuels. (since it's not good for fuel to be dropped on the ground, since MTBE will sink through the ground and contaminate our underground water supply). Other than that, the install went smoothly. So take my advice, get a jar ready incase there's excess fuel left in the fuel line.

[BeteNoir]

Mmmmm. Ether yum. Good for the brain cells