vortech fmu

[chicagoP5]

i need help on working my fmu i need to turn down my fuel and don't know how to do it i was told its turned up way to high resulting in two bad injectors

 

[orangezoom]

The only way to control the fmu is internal I mean they make different ones for different flow rates don't they?

 

[orangezoom]

How are you controling your fuel?

 

[jsahyoun]

Yeah the only thing you can do is buy a new disc for your FMU

 

[EYEben53RV3D]

yup, new disks only for the vortech. You should've bought a RRFPR. They are more adjustable and work better on smaller motors since you dont need to just dump fuel into the engine.

 

[orangezoom]

Yeah the only thing you can do is buy a new disc for your FMU

Thats what I thought change the diaphram inside it right?

 

[jsahyoun]

Exactly. They sell 10:1 12:1 and another size disc I beleive. Figure out what disc you are using and go from there.

 

[LinuxRacr]

i need help on working my fmu i need to turn down my fuel and don't know how to do it i was told its turned up way to high resulting in two bad injectors

Wait,

I'm curious as to how you found out that you had 2 bad injectors? Also, how much pressure was too much? The reason I am asking is because I could possibly have a couple of lazy injectors myself. Not sure though.

 

[igdrasil]

Beware of FMUs!

But anyway, if you want to lower the pressure, you can also put a MBC to the vacuum line that feeds the FMU and control the amount of boost it sees.

 

[EYEben53RV3D]

FMU's aren't a problem...it's just that RRFPR's work better on low-boosted applications that need a slight bump in fuel pressure.

 

[chicagoP5]

Wait,

I'm curious as to how you found out that you had 2 bad injectors? Also, how much pressure was too much? The reason I am asking is because I could possibly have a couple of lazy injectors myself. Not sure though.

i got a check engine light i got it looked at a shop and they to i said i had a miss fire so i bought new spark plugs and wires i went with the nology setup and then then i took it in to the shop cause the problem stiil didn't go away and they told me that for sure two of my injectors were bad so i bought them put them in myself started up the car and no more check engine light running good now by the way the mazda dealer hit my up $300 for each injector i am hurting right now but i will be representing mazdas and my poeple in downtown chicago tommorrow in the puertorican parade oh yeah