mazdaverx713b

iTrader: (91)

i pulled the intercooler and uim on my AE today to get to the injectors and they are very leaky!!!! the secondaries will leak if you move them even the slightest bit(all that coupled with rock hard and breaking vaccume lines). my question is, do the injectors closest to the front of the engine spray the fuel to the front rotor and the rear most set spray fuel to the rear rotor? i'm at the start of diagnosing why i'm not getting any fuel to the front rotor and i've got some good advice and technical info, now i'm getting down to some problem solving. here's a couple pics of what i found:

The Wankler

iTrader: (14)

The Primaries spray to both. The secondaries the same. You have to get fuel to both rotors. The secondaries stay off till around 3500 rpms.

Fronts are Primary (being the wo closest together)
Rears are Secondary

Both spraying both rotors.

mazdaverx713b

iTrader: (91)

ok, cool, makes sense. now i just have to find out why i'm not getting gas to the front rotor.

C.A.R

If you are getting fuel to both primary and secondary fuel rails and the front rotor is the only one not getting fuel, it is probably because you have a bad injector on the primary rail... The secondary will only kick on at high RPMs... I would definately go buy some of that silicone vacuum line and replace your vac lines one by one... It will make it run/look better and may also fix the secondarys not coming on if that is the problem...
**
If you o find that your injectors are bad; the following is a link to a site that has injectors pretty cheap...
http://www.fiveomotorsport.com/Injector_SetsMAZDA.asp

The Wankler

iTrader: (14)

You can send your injectors to witchhunter.com(sp?) They will clean and balance them for you.

wankelme!

hey,while you've got it apart,get rid of that plastic fuel pulsation dampener before your car burns down!

classicauto

iTrader: (3)

its metal.........

Aaron Cake

iTrader: (1)

...and it's a necessary part of the fuel injection system...

Forgetting about the PD for a moment, replace all the o-rings that seal your injectors to your fuel rail and block. Clearly you have a fuel leak at that point which needs to be fixed...

HAILERS

*****do the injectors closest to the front of the engine spray the fuel to the front rotor and the rear most set spray fuel to the rear rotor? *******

Yes. I'm not responsible for answers others give or gave you.

I'd suggest going to the primary rail, the rail attached to the intermediate housing, and remove the rail but leave the fuel line on it. Then Zip tie the fuel injectors to the rail. Pull the cas out of its bore but leave its electrical connector on it. Key to ON and the fuel pump check connector jumpered. Spin the CAS bottom gear with your fingers . Fuel should spray out of each of the primary injectors.

No spray out of the front one? Get your meter out and see if one of the two wires in the connector for the front primary injector has 12vdc with the key to ON. It should. If not, then find out why.Got

wankelme!

oops yer right...nevermind! forgive me...you'd be jumpy too if you lost one to that!

The Wankler

iTrader: (14)

Wait, reading it like you might have I see the point.

"The two closes to the front of the engine". If looking at the picture the that would mean the two on the left. Primary #1 and Secondary #1.

FCKing1995

iTrader: (3)

i read that wrong too. i read it, 2 closest to the engine, not front of engine. which would be 2 totally different things. but yes, in that case 1 is a primary, the other is secondary. so yeah, first 2 front rotor, 2nd 2, rear rotor

mazdaverx713b

iTrader: (91)

ok, here's what i came up with. thank you all for the help! HAILERS, i went your route and found a faulty primary injector. well, i know that i've found one problem. i also ran a compression test tonight and came up with 85psi on the front rotor and 0psi on the rear rotor. i had a feeling that was coming.....