Ok, I replaced the dead FPR which was dripping fuel and I replaced the FPD for good measure, and the intense fuel smell is still there, im going to go in and see whats up and maybe replace o-rings. Anything else I should check while im in there or any other ideas?

 

o-ring and injectors. Thats what caused my fuel smell. If not there might be other issues, and dont drive it !!! bring it to a mechanic if possible (only those who familiar with 7s, dont bring it back to dealer, they suck @$$)

 

Turn on the fuel pump to pressure up the fuel system by jumpering F/P to GND on the diagnostic connector. Then just look for the leak.

I'm guessing injector O-rings.

 

^^ with that guy

 

yea, i did that after replacing the FPR and FPD. Thats why im so baffled that I didnt catch it. I let it run for 10 minutes. Im guessing that when the injectors are firing the o rings around them are letting gas get pushed out under acceleration. Hopefully throwing some new rubber parts at it and rechecking everything will fix it

 

ok, how the heck do you get the injectors out of the metal plate?

 

Twist and pull on the injectors. Sometimes it's just easier to bite the bullet and pull the fuel rails out as well.

 

Did you remove the rails from the engine? if you did, did you replace the insulators that seal the rail to the block/ LIM? If they are missing or bad you will get a fuel smell under boost

 

yea, the insulators are shot, those are being replaced. Anyone have pictures of their injectors and where o-rings go/are supposted to be. I think mine only have one set of O-rings on them.

It is such a pain in the butt to go down there again after replacing almost everything down there. Anyother things I should replace while im down there? So I dont have to crack open the rats nest again for a few years

 

Unless you have done your vacuum lines already you should replace them to the silicone ones...

 

yea, i did all of those when i did the FPD and FPR.

 

Also you know those little brown plastic caps on the bottom of the primary injectors? They dont have a part number in the parts catalog and both of mine are cracked, where can i get new ones?

 

I find that removing the injectors is much easier when the rail is lifted, and I can push from the bottom and pull from the top at the same time. Shoot them with a little PB blaster to help un-stick the o-rings, and twist as you pull.

Those broken ends are pintle caps. Some injector service shops can get them, but Mazda doesn't sell them.

I would consider just sending the injectors out for a full cleaning job - you also get new o-rings and pintle caps for no extra cost. Mazda o-rings are so expensive it makes the injector cleaning very affordable . The insulators are called 'grommets', and they can be bought from Mazda for a few bucks. Ray at Malloy stocks them.

 

Now is time to have the injectors cleaned. you can send them to a place like RC eng. or Witchhunter, they will supply new o rings and pindel caps if nesessary

 

i strongly recommend witchhunters, they did a great job replacing all my injector with caps and o rings... Very fast and great services. After they cleaned mine, i thought they just threw me some new injectors =D