My FPR is leaking fuel at the return on the bottom and I don't know why. I have a Buschur Double Pumper, 1450 injectors on e85. Any help is appreciated...

 

Are you talking about the oem fpr on the fuel rail? It likely just failed internaly, it happens. Its going to need to be replaced obviously.

 

Yes oem on the rail.... I was told to pull the vac hose and if it was bad it would leak fuel and it did not...

 

That's only one way it can fail; it not doing that doesn't make it ok.

 

Ok, vest place to source a new one?

 

go to maperformance.com and buy a new one, it'll be at your door in about two days

 

do they have stock, im not too interested in an adjustable one...

 

Here ya go.

oemmitsubishiparts.com/parts/2003/Mitsubishi/Lancer/Evolution?siteid=214331&vehicleid=140001&section=F UEL%20SYSTEM&group=FUEL%20INDUCTION&subgroup=FUEL% 20INJECTION&component=FUEL%20PRESSURE%20REGULATOR

 

Thanks, have one ordered im pretty sure this should fix my problem...

 

new FPR DID NOT solve my problem, still leaking at the return and running lean. Getting very tired of buying parts I apparently don't need. What do I check next? VERY FRUSTRATED, any ideas are appreciated. Thanks.

 

Are you running a fuel pump full voltage rewire kit?

 

no, and the second pump is activating around 5psi

 

I was just thinking that the stock fpr would have issues handling a double pumper but I looked and I guess a lot of ppl set up that way. I have a 340 single on a rewire and it was over running the stock fpr tho.

 

at idle and cruise its one pump so it shouldnt be able to overrun the stock FPR. I got the leak fixed I guess it was just a crappy clamp, I bought a 1/4" fuel hose clamp and put it on.

 

Sweet, I love when it ends up being something ez