Best fuel pump replacement video for NB Miatas! (Part 1)

[@Mind_Funeral]

Instead of pulling the fuel relay, you can just pop the electrical connector off the fuel pump assembly and turn the car over a few times. Just did this on a 2003 Miata.

[@rwthomasify]

Exactly. You'll have to remove it later in any case to remove the pump assembly.

[@thaburninator0904]

This is a great video. Thanks for taking to time to put it up.

[@mazdaspeedmx512lbs]

If it helps 1 Miata person it was worth it. Watch my shuffle dance tutorials. If you learn and go to the club you get a lot of attention from girls. A lot.

[@edmunoz6524]

Just a nitpick, but you disconnected your positive lead to the battery (the one that is shrouded so it won't short if something metal touches it. Typically, you disconnect the ground lead. Great vid!

[@OzCreationsAU]

agreed, man so lucky to not have sparks flying everywhere...

[@earlebird4262]

That's not a nitpick, it's critical. That's how batteries explode. It's how wedding rings burn flesh down to the bone. Please don't take battery safety lightly. There are much better ways to lose a finger or a lung.

[@Roberto-oi7lm]

@@earlebird4262 Agreed. All you have to do when you're taking off the positive terminal is touch the inner fender with the end of your wrench, weld it in place, and then you have real trouble. Possibly a battery explosion and/or fire which will ruin your whole day and perhaps ruin your car too. Taking off the negative side is nearly idiot proof so ALWAYS disconnect the negative side.

[@perjian1697]

Disconnect your negative cable not the positive. This is critical. Also, no reason to unplug the fuel pump relay. Unplug the pump connector at the pump itself. Don't be redundant. And you do not need a tool to remove the fuel lines. If you pinch the outermost edge(the white plastic with clips) and pull the fuel line then the retainer with clips stays on the metal line while the plastic hose slips off easily. Also, this could've been a 5 minute video. But glad someone took the time to make this. Cheers.

[@lanakrawczel8557]

Thanks for this. Very clear. concise, and informative. It was like to come over and showed me how to do it. Thanks again- FK

[@feelthatfeelthat]

Your videos are so informative and great. I dont know why youtube makes it so hard to find when i searched for nb fuel pump replacement. Perhaps your keywords?

[@mazdaspeedmx512lbs]

I'm adding those keywords now

[@glenndavis5146]

I ran into an issue regarding my '03 Miata. Does the '03 have a cabin filter. One website states there is a cabin filter and offers replacements and another web site stated there is NO filter?

[@HBOIchip]

SOOO Clean in there! mine looked terrible!

[@brianmariscal4834]

What would happen if you tried to turn on the car after you disconnected the fuel pump relay? Would it back fire?

[@Rizzy4magic]

Is the relay in the same location in NB1?

[@gagebmx3659]

I was doing a fuel pump replacement on my miata until i noticed i did not get a new bracket that fits the new pump and rubber piece that goes near the screen that came with Delphi Fuel pump I got from advance how did your bracket go on? Does the new pump you got fit with old bracket or did you order a new bracket?

[@dittie83]

Hey! Great vid! Thanks for the indepth instructions and tips. Question: Regarding removing the connector and running the fuel out, could I just disconnect the electrical connector on the fuel pump? or do I have to remove the one under the dashboard? Thanks!

[@mazdaspeedmx512lbs]

the manual says disconnect fuel pump relay under the dash

[@sandyparas6960]

@@mazdaspeedmx512lbs would unplugging the fuel pump fuse/relay under the hood also work?

[@mazdaspeedmx512lbs]

@@sandyparas6960 the manual says to unplug the fuel pump relay then start the car. if you unplug the fuse i dont think the car will start to release the pressure

[@DrifterDavid]

Yes disconnecting either will work.

[@marciaz31]

Where did you buy the fuel quick disconnect tool from ? I did not see that exact one on the internet ..

[@mazdaspeedmx512lbs]

You can usually find them at any autoparts store. I bought the cheap plastic ones. I bought mine ether at advanced auto or autozone.

[@marciaz31]

I did not see them on their web sites, so I went the ebay rout ...Thank you JC ..

[@jhonatangomero1058]

What year is this miata?

[@kCI251]

Why not simply disconnect the connector AT THE FUEL PUMP? You will need to disconnect it to replace it, right?

[@zdarklink]

Because there would still be pressure in the fuel lines

[@mlrable]

Well done and though out. What year is your car

[@mazdaspeedmx512lbs]

@@mlrable 2004 Mazdaspeed Miata

[@osalcedoucmsae]

Would you recommend putting a higher pressure fuel pump on an non-turbo NB? I’m having hesitation issues and gonna be testing pressure so figured it would be good to know in case I gotta replace it Thanks!

[@kCI251]

Have you replaced the fuel filter yet? Maybe clean the throttle body too.

[@Shredzilla100]

Where did you buy this new turbo?

[@mazdaspeedmx512lbs]

Its a BNR Evo 3 16g bnrsupercars.wordpress.com/mazdaspeed-miata/

[@gabrielj.wheaton8081]

How do you tell if the fuel pump is bad?

[@cen7ury]

Easiest way to tell is to listen by the fuel fill pipe with the gas cap off while someone else turns the key to 'on' (but not start). You should hear a high pitched whining or buzzing sound for 1-2 seconds right when you turn the key to on...thats the fuel pump priming. If you don't hear that, you likely have a bad fuel pump.

[@c4veman]

@@cen7ury what are the dangers of a bad fuel pump anyways? Just bought a 99 the other day and today when i started it i heard the whining right behind me that lasted for a good 15 seconds maybe? also starts whining again when i turn the car off

[@cen7ury]

@@c4veman Generally, the main danger of a bad fuel pump is your vehicle not starting. Occasionally a pump might go bad while the vehicle is running, causing it to stall out and not start back up, but that's pretty rare, and usually would only happen when you're running on fumes, since the fuel in your tank is what cools the fuel pump...so no fuel means the fuel pump can overheat and sieze up. If you're hearing the fuel pump operating, that's a good thing. Fuel pumps don't usually give much (if any) warning before they stop working, at least not in my experience, so if its working now you're good for the time being. Hope this helps!

[@c4veman]

@@cen7ury It did! I’m just a bit conflicted now because of people on the miata forum suggesting replacing it as an indicator it’s going bad

[@cen7ury]

@@c4veman Honestly, it's such an easy thing to replace, even on the side of the road, that I would suggest ordering yourself a replacement at a good price (from Rock Auto or similar) and just keep it and a simple tool kit in the trunk for when it eventually goes bad. That way you've got peace of mind without having to replace a working part to get it. Best of both worlds, imho.

[@marciaz31]

Where is part 2 ?

[@marciaz31]

LOL I found part 2 ;-)

[@brianporcello9516]

Holy hell man. What a drag. 6 minutes of this video didn't need to happen and you didn't even manage to pull the fuel pump out =_= What a drag

[@jetski275]

My car won't start due to bad fuel pump. What do I do now? I'm want to follow your steps, but the car won't start

[@mazdaspeedmx512lbs]

um i guess if the pump dont work it wont build pressure.

[@katana2008]

You didn't even show the removal or swap of the pump 🤦‍♂️🤦‍♂️🤦‍♂️. I assume that fking thing pulls out from the top even though it looks like you can't pull it straight out

[@mazdaspeedmx512lbs]

yes you pull the pump out. i think i couldn't video and pull the pump at the same time.

[@katana2008]

@@mazdaspeedmx512lbs yeah I got it out no problem, thanks. Also you don't have to remove the plug under the steering wheel. Just removing the electrical plug right at the top of the pump assembly does the trick. ✌️