My rail mounted Aeromotive FPR started leaking when the 4 bolts holding the top on loosened after about a year. I called Aeromotive about this and sent the FPR in to get checked out. They replaced the diaphragm and sent it back to me.

I installed it in the car, set the fuel pressure, reset the ecu, and let it idle for 10 minutes. 30 minutes later I tried to start the car, and it would barely idle. Fuel pressure was low, but there were no leaks. I pulled the vacuum line off of the intake manifold and fuel was being sucked in from the FPR. I called Aeromotive again, they asked me if I had used any fuel additives, what kind of fuel I used, then told me to send it back again. When I got the FPR back from them again, the note said "Discontinue use of Sunoco fuel." I called them back about this because I had been using Sunoco in my '99 Civic since it was brand new. I also stated that in 40 minutes there couldn't have been enough time for "bad" fuel to cause damage. He insisted that the damage done to the diaphragm was consistent with a chemical reaction. Suggestion: Use another brand of fuel (BP/Amoco) and drive down to 1/8th of a tank a couple of times to get rid of the Sunoco.

Tonight I had to take the top off of the FPR anyway, because they reinstalled the vacuum nipple the wrong way. The diaphragm looked fine. I carefully put it back together, then reinstalled it on my car the same way I did before. I went for a ride, let it rip a few times, then popped the hood while it was idling in the garage. As soon as the car shut off, the fuel pressure went straight to 0. I pulled the vacuum line off of the manifold again, and it was filled with fuel.

Could someone please tell me what is going on? Is it possible that Aeromotive had a bad batch of diaphragms and won't admit it?

 

Sorry for the long post, but I just wanted to give detail. I searched last night and didn't find anyone who had a problem with Aeromotive FPRs leaking through the vacuum line. Can anyone offer some insight?

 

It seems I had a similar problem with my Aeromotive fpr. I had it on the car about 2 weeks and then one day I started smelling fuel. The fpr was brand new, but I bought it over a year ago.

At first I thought it was leaking from where the fpr mounts onto the fuel rail, but after trying different o rings and gasket material made for fuel it would still leak. I now think it was leaking from the same place yours was initially leaking from. I took it apart to see if I could fix it, but now it only leaks worse. I put the stock on back on and said to hell with it.

Aeromotive I don't think I'll be buying anymore of their overpriced ****. BTW, I had fuel pressure set at 40psi. With the stock fpr back on the pressure actually runs higher.

As to why it's leaking through the nipple, I have no clue. I'll probably just buy an AEM unit when I need to increase fuel pressure.

 

mine leaks from everywhere .. i'll also be ditchin mine

 

wow........i can't belive all the problems with aeromotive regulators.....i was gonna buy one but after this i think i'll stick to my OEM/B&M unit.....for now

are all you guys running the regulator that mounts to the fuel rail with these problems? i know some guys use the universal regulator and remote mount it with extra fuel lines etc...any issues with those ones?

 

ive run the aeromotive regulator with the -10 in and -6 out on multiple vehicles and never seen an issue.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by non-VTEC &raquo;</TD></TR><TR><TD CLASS="quote">wow........i can't belive all the problems with aeromotive regulators.....i was gonna buy one but after this i think i'll stick to my OEM/B&M unit.....for now</TD></TR></TABLE>

all of a sudden only a few units we know are bad! no need to be bashing on a unit that does and will continue to be great just for a couple of units. Yes its unfortunate for someone to get a defective part but will all have do deal with it sooner or later!

I got a defective exhuast housing on my gt35r from precision and they were great with the warrenty! Im just saying theres always going to be a few defective parts in this world get used to it!

not to be a dick but, how many units do you think there are? thousands i would think....

edit: spelling owns me

 

My intention wasn't to bash Aeromotive. It seems like almost everyone in the forced induction forum who replaces their stock FPR uses them without problems like this. I'm just trying to figure out WHY this has happened to me twice on a brand new diaphragm in a mint condition FPR.

I have been very very lucky the 4 times my regulator has leaked on me. Two times I was in the garage, and the other two I was less than a mile away from home. The first two times it was bolts and the NPT plug coming loose, which is understandable, but a diaphragm shouldn't fail this fast.

I should move my Halatron fire extinguisher out of the trunk and put it behind my seat.

 

I also had the NPT plug leak on me, it was loose, and the teflon was decayed. No big deal, even a tiny bit of raw gas is easy to smell. Other than that it works awesome, very easy to adjust it to where you want it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jared &raquo;</TD></TR><TR><TD CLASS="quote">ive run the aeromotive regulator with the -10 in and -6 out on multiple vehicles and never seen an issue.</TD></TR></TABLE>


Yeah me too. I guess it is just LUCK, I have had bad luck with products in the past WHILE everyone else had no probs and vice versa. Sucks. I hope Aeromotive fixes it for real

 

Only certain Aeromotive FPR's have a problem with their diaphragms... The higher line models never had any problems just like we all expected. Once they've decided to produce econo or cheaper line ups, that's when sh*t happens

 

This regulator was almost $200. I could buy a Weldon for not much more. I was unaware of them having higher end models with better diaphragms, and I doubt that's the case.

Let me ask you this, what would be considered a high end model from Aeromotive?


Modified by Sprockets at 12:53 PM 12/18/2006

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sprockets &raquo;</TD></TR><TR><TD CLASS="quote">This regulator was almost $200. I could buy a Weldon for not much more. I was unaware of them having higher end models with better diaphragms, and I doubt that's the case.

Let me ask you this, what would be considered a high end model from Aeromotive?


Modified by Sprockets at 12:53 PM 12/18/2006</TD></TR></TABLE>

I would like to know which ones are the higher end ones and how much are they? I paid almost 200 for mine as well.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sprockets &raquo;</TD></TR><TR><TD CLASS="quote">This regulator was almost $200. I could buy a Weldon for not much more. I was unaware of them having higher end models with better diaphragms, and I doubt that's the case.

Let me ask you this, what would be considered a high end model from Aeromotive?
</TD></TR></TABLE>

Yours is the Honda specific model right? In that case, it doesn't apply to you assuming there is only one model available. Several guys on SF reported instant failures by getting the cheapest universal FPR from Aeromotive (the one with the least flow rate), and everytime they cranked down the adjustment screw, the diaphgram would rip and start leaking right away. By observing the appearances though, it does look like the Honda-specific ones are the same as the lowest line-up of Aeromotive's universal EFI FPR's but with a much higher price tag

 

Mine is the 13116. The remote mounted model 13109 is about $50 less. That's the model I see most people using. Is this the cheap one you're referring to?

I spoke with tech support and he's willing to either exchange it for the same model, or a refurbished different model. Which model would you recommend?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sprockets &raquo;</TD></TR><TR><TD CLASS="quote">Mine is the 13116. The remote mounted model 13109 is about $50 less. That's the model I see most people using. Is this the cheap one you're referring to?

I spoke with tech support and he's willing to either exchange it for the same model, or a refurbished different model. Which model would you recommend?</TD></TR></TABLE>


Yeah that is the Honda Specific one, I would try and see if they will let you get a 13109 and make the necessary modifications to use that. Just an option at least

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr Wonderfull &raquo;</TD></TR><TR><TD CLASS="quote">Ive heard of multible problems witrh the AEMs, buyt didnt know the Aeromotives were as problematic as well... Ill stick to my OEM/ B&M</TD></TR></TABLE>

I had an AEM before this and it was flawless up until the point when i sold it. The AEM diaphragm is much more solid, and the problems people had with them involved the use of nitrous.

I bought the 13116 as a step up from the AEM. The Aeromotive worked fine for over a year, and now I've had problems with 2 diaphragms in a row. It doesn't mean that they are problematic. It sounds like a manufacturing problem they're not willing to admit.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Boostfed.com &raquo;</TD></TR><TR><TD CLASS="quote">Yeah that is the Honda Specific one, I would try and see if they will let you get a 13109 and make the necessary modifications to use that. Just an option at least</TD></TR></TABLE>

I thought about this, and I'd rather get a brand new 13116 than a refurbished 13109. I haven't really made up my mind yet, though.

By the way, how do you guys with the remote mounted FPRs adapt the return line to the stock hardline, or do you run new braided hose to the tank?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr Wonderfull &raquo;</TD></TR><TR><TD CLASS="quote">

i know 2 people with non n2o straight fi motors that have blown up due to their aems taking a ****. Thats what im saying, nothin more... Ive also read of others having it happen.

Thtas why i stuck to the b&m modifier... I always hreard the aeromotives were solid...hmmmmmmmm</TD></TR></TABLE>

u my friend r a fool to believe in the B&M FPR. i have tuned over 50+ cars and i have had problems with 60-70% of the cars that come in to tune with B&M FPR. they all dont hold the fuel pressure at high rpms. they are the worst regulator in the market today. i personally havent seen an AEM or a Aeromotive fail. and i have had two that have failed on me as well!

for B&M.

ask any tuner and they'll tell u the same thing. B&M r garbage

 

I completely agree. The B&M can only raise pressure, unless you do the Endyn modification to the stock FPR. A B&M FPR is the last thing you want to use on a turbo car. It's really designed for those with bolt on mods like cold air intakes so they can richen it up a little.

I still like AEM.

 

No problems with my B&M for almost 8 years on both my Hondas...ROFL I like the B&M because it's practically OEM, and as long as you don't peg the pressures beyond 60 psi it is intended to work flawlessly IMO (can't go wrong with OEM diaphragm, seat, etc). I have my fuel pressures at a max of 60 psi under boost... I know I could have went higher if I purchased an AEM or a nicer FPR and stretch the limits of my injectors; however, I figured I would use the money plus a little more and buy larger injectors instead I can continue to keep the pressures below 60 psi

As far as bolt-on FPR goes, I can't seem to find a flawless brand to choose from. The Honda specific AEM had problems with the mounting flange snapping off from fatigue and causing huge potential of engine fires...yikes! It's not my first time hearing problems with the Aeromotive units with their leaking diaphragm. Somehow after running a huge circle, I like my good old trusty B&M under 60 psi

 

My buddy's CRX has went 9.68@157mph using a B&M FPR

 

I guess you learn something new every day. My apologies Mr Wonderfull. If Tony the Tiger and Boostfed give B&M thumbs up, then it must be OK.

T3...the mounting flange is pretty thick. Where did you hear about this? And which Aeromotive diaphragms did you hear about leaking? Rail and remote?