How To: Install In-Tank Fuel Pump

[GOTZOOM?]

The fuel pump you need is a 94-97 Miata Walbro 255 LPH HP. P/N GSS342


One of these is the stock Miata pump, and the other is the stock Protege pump.


Step One: Remove Gas Cap. Flip drivers side rear seat forward.


Step Two: Lift flap and remove 4 cover screws.


Step Three: Unplug the two plugs.


Step Four: You will need to remove this plug that I am holding from its holder that I am pointing to.


Step Five: Now remove the Fuel Lines. This is tricky. Just use a small flat tip screw driver to lift each side of the green clip over the lip on the line.

[GOTZOOM?]

Step Six: Now remove the 8 screws that hold the unit on the fuel tank. IMPORTANT: Make sure you use a very good #2 screw driver on these screws. They are very tight and soft, and if you are not careful, you will strip them Pull the unit up and out, but not all the way, make sure the screen drains before tracking it across your interior.


Step Seven: Unplug the fuel pump! If you dont, you will rip the wires out of the plug. Trust me, it will happen. Now that it is unplugged, remove the white clip and pull the fuel pump out. It will be a little tight getting it out, just pull on it.

Step Eight: Either transfer the the screen to the new pump, or if you bought a new one, put it on the new pump. Do not use the one that comes with the walbro. It mounts in the wrong direction and will not pick up fuel. Remove the rubber sleeve off the old pump if it came out of the hole, and the white spacer and put them on the new pump. If the rubber sleeve isn't on the old pump, make sure it is still up in the fuel line. You dont have to take it out, as long as it is up in there your fine. Its what seal the nipple on the fuel pump going up into the fuel line.

Step Nine: Put the new pump back into the holder and plug it in.

Step Ten: Cut the bottom off of the white clip holder so that you have two clips for each side. I used a Dremel with a cutting disk.
In the picture is the peice you are cutting off.


Step Eleven: Put the two clips on and weave a zip tie thru them and around the fuel pump as in the picture. You may have to study these pictures to get it right. If its not done this way, the pump may come loose and fall into the tank while driving, and that wouldn't be good at all. Make sure to take a pair of pliers to pull the zip tie as tight as possible.




Step Twelve: Make sure Fuel Pump is plugged in and reinstall everything. Happy Motoring.

[GOTZOOM?]

Sorry guys, the site that host my pics turned them off for the rest of the day because I went over my bandwidth for the day. Bad Boy...BAD BOY! Check back again later and the pics should work.

[spoolinmp3]

Good Job, just for info I will move this to the HOW too section in a few days

[PaulMP3]

good write up, this may come in handy.

[flat_black]

Just out of curiosity, what are the differences in output between the two?

[duMb KeoLa]

how can you tell if theres a difference, do you need a fuel pressure gauge?

[flat_black]

That'd do it just fine.

[dominoy2k1]

damn....what happened to the pics?.....

[GOTZOOM?]

Stupid villiage photo cancelled my account because I was directly linking to download videos. Who do you guys suggest for picture hosting?

[azeli73]

something simple like yahoo should do it. or upload them here

[dominoy2k1]

yeah yahoo....cause i took mine apart but i dont know how to put new one in.....or just upload to the forum...

[GOTZOOM?]

I've tried to upload them here, doesnt seem to work, unless I am doing something wrong. Maybe I will try Yahoo.

[

[dominoy2k1]

hey ummm try yahoo and just name them 1,2,3,4......etc...you can put em in the briefcase...

[dominoy2k1]

ummm...not to rush you or anything...but have you uploaded them yet....