Is a new FPD a reliability mod now considering the age of the 3rd gens?
 

I was about to tackle the vacuum hoses and read that it's good to replace the fpd too as you do this. Does this have to be done? It seems like I keep finding things that sound like they HAVE to be done. I'd like to put the wallet away for a bit and get her running again.

IMO, I would replace while you are in there. When the thing goes bad it has the potential to start a fire. It is a lot easire to get to it now so I would go ahead and replace it.

its only 150 dollars and its insurance for the fact that if you dont replace it youll be asking yourself if your car is gonna burn today. . . it will eventually leak. one day i kept smelling gas in my car when i stopped. when i got home i inspected the engine bay and found fuel everywhere. thats how bad it is. luckily, my car didnt catch on fire. i went ahead and sent my injectors to rc engineering and bought some block-off plates while i replaced this piece. bottom line is DO IT!!!! it is very dangerous to look over something like this!!!!

paul

note: it is easier to get to if you take the acv off. . . if you have or are getting block-off plates then you have done or will do this.

FPD
 

What excactly are you guys talking about? FPD?
My car had the recal done for the fuel hose but is there something else I need to look at. MY car had engine replaced by Mazda dealer last year.
The first thing I did was the silicon hose job.
So if there is something else to keep it for burning down I want to know.

Thanks a Bunch!

theyare talking abut the fuel pulsation dampener. Idont know if they replace it when the dealership relaces the engine. next time your intake manifold is off, take a peak and see if it looks new.. search the forum for some pics of what it looks like

just look at your invoice. . . it should be listed as parts used or something.

Make sure you know what you are looking at, the pulsation dampener is at the inlet of the primary rail.. very hard to see with the UIM and wire harness in the way. The pressure regulator is at the outlet of the secondary rail, it is located at the upper side of the LIM toward the firewall (on the engine side of the LIM).

Matt

how big of a pain is it to replace? I'm tinkering with the idea of just having the rotary shop near me put on my vacuum hoses since I seem to get into other things like this FPD. I just didn't want to spend the 5-600 bucks on labor to do it.

Well replacing it with a stock unit isn't that hard, but replacing it with something aftermarket is a bit of work to do correctly. If they are in there to do the hose job it is a good time to do it though, most everything is off that needs to be. I just completed a hose job myself and took this route, removed both fuel rails and tapped them to accept Earl's fittings, ran SS fuel lines, and mounted the FPR on the driver side where the cruise control is on the touring models. It won't do much for me performance wise (other than being able to adjust and monitor fuel pressure easily) but it gives me piece of mind knowing that an engine fire is much less likely now.

Matt

It is a big pain to replace if your only going in to replace it. If you are in there anyway it is very simple to replace.

Mazdacomp sells them for $77.

Jeff

To replace the Fuel Pulsation Dampner is a labor intensive but relatively easy job. It takes a while to get to it, but can be accomplished to any novice with the proper tools. When changing this out I would recommend having your injectors cleaned and balanced, replacing the o-rings and especially the injector insulators, and finally a Hose job as well. Since your in there double check on all your coolant/fuel hoses as well, some of them may need replacing. It's a time consuming project, but is very necessary on any FD.

eric

Just some advice but when I had my motor rebuilt about 1 year ago, my fpd was getting old but to save money I decided not to replace it. It was a big mistake, it started leaking a few months later and almost started a catastrophic fire. IMO it is cheap insurance and I would def. consider if you have over 60-70K miles.

FPD
 

OK I check the bill of material from the dealer that replaced the engine did not see anything about a fuel pulse damper. I did see that they replaced the primary injectors.

All this work done was before I bought the car from previous owner.
The first thing I did was the silicon hose job wish I knew about the FPD.

So since I don't drive the car more than 3K a year this winter I will replace FPD. Anything else I should do while I have it apart again.
I am thinking of replacing the fuel hose with braided steel type and also maybe installing larger injectors.

Also considering the same mod that MJW did. I to want piece of mind.

I have no smell of fuel at all and every time I'm done running the car hard it goes back in the garage and I open the hood to help release trapped heat.

So I am open to reliability mod (Keep from Fuel Fires)
Money is no object for this baby what else can I do with this baby.

I like the boost when the second turbo kicks in so I am sticking with that.

Planned parts to replace:
1. Fuel Pulse Damper
2. Steel braided fuel hose (MJW can you send me parts list needed)
3. Fuel pump and filter
4.
5.
6.


Anything Else?????

Since your going in there you can replace the coolant lines if they're bad. The 2 that go to the throttle body, and the small one behind the waterpump. I would normally recommend getting the injectors serviced and replacing all the rubber parts around them, but since you replaced them they should be ok. just double check everything and you should be good. I should have had my manifold polished when I did mine. Good luck

eric

What about secondary injectors? Should I go larger or keep the stock. I'm going to pull them out anyway to get them cleaned. Or just replace them. Also was considering if such a this exist upgrading the fuel rail. Is there a better on, more reliable one?

I have now had a 94 R2 for about 4 months. Total miles are 9255 (yes, that number is correct). When should I worry about the FPD, Injectors, etc? She runs fine.

Powermalex, the secondary injectors aren't known for going bad nearly as often as the Primaries. But a good cleaning/balancing can't hurt. Just remember to replace the injector insultors that they sit in. Also if you want to upgrade the size or the injectors, you'll have to upgrade your ecu as well. The M2 does not support bigger injectors. I would recomend waiting on the injectors until you decide on an ECU and then discuss what your tuner recomends with them.

Pverdieck, I would not worry about yours for now, it's the heat under the hood that kills the FPD. With under 10,000 miles most likely your ok. But a word of caution, if you EVER smell fuel, find out where the smell is eminating from in a hurry. Now change your radiator, and get a downpipe a.s.a.p.

eric

Crap! Here are my mods, why can't the damn sig be set up as a default!!!

If your car has that many true miles on it and you are the first owner and the VIN is correct. You better get rid of it. It will most likely fail very soon. It may even catch on fire!! THat year is the worst year for FD's

Give me an address and I'll send you a cashiers check of $25K to take it off your hands. ;)