tweety2300
Member
- :
- 2001 mazda protege mp3
No but when it throws an emissions code it will run rich automatically. It's programmed into the ecu. When I fixed mine I went from 24-26 mpg to 30~ mpg just from doing one small thing like that
@RicoP5: Don't know. I'm assuming I would have to get the valve cover off to get that info?
@Rhys: Thanks for the offer, I would consider if I didn't live in California - need to pass emissions tests. That's why I kind of like the set up I have right now; come emissions I just put in a precat I bought and swap in the USDM factory ECU. I wouldn't be able to do that with the FS ZE harness.
@Tweety: I really think you're on to something with the f/a mixture. This weekend I went to Big Bear. The elevation is about 21x greater than where I live. I noticed as I ascended up the mountain after a certain height the pining totally ceased. Driving around in Big Bear for 3-4 days... no pinging at all, and it seemed to idle smoother. I think this is so because there is considerably less air up in the mountains, making my a/f ratio "richer." Sure enough, when I went back home, there came the pinging again.
So, I read up on this thread about how someone swapped a fuel pressure regulator out of a 626 to richen his a/f ratio slightly on his MSP (I think he tested it with a wideband). http://www.mazdas247.com/forum/showthread.php?123802728-Do-this-if-you-want-a-slightly-richer-AFR-for-cheap!
I thought I could do the same.
I then checked the FPR I have on FS ZE Intake manifold (I haven't installed it yet), and noticed it had different coloring and part numbers than the FSDE regulator I have on. The ZE regulator neck was shorter and ever-so-slightly larger in diameter than the DE regulator, so when I tried to swap it with the FS DE regulator it wouldn't fit into the attachment-bracket-thing connected to the fuel hoseAnother stopping point. Anyone know How I can make it fit? Can I get a JDM attachment from the dealership? If I get desperate enough I'll Dremel it in...
FS ZE regulator on top:
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FS ZE:
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FS DE:
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Would the ze use bigger injectors?
Install Protege blue label regulator, yellow regulator from capella FS or familia FS 4WD almost less pressure. I use FS-ZE mani with FS-ZE fuel rail and pro5 regulator in my setup!
Would the ze use bigger injectors?
Fsh9 is intakeFs9 or fsh9 iirc
Good info Ivan. So does that mean that less pressure would RICHEN my a/f ratio? If so, then I want to use the yellow.
The injectors on my DE and ZE look exactly the same...
Just for clarity, go to this page and scroll down to the FS ZE. My engine looks exactly that (notice the yellow FPR). According to this site it's from a Mazda Familia. There is an FS ZE for sale in the marketplace that has the coils on the valve cover, like the DE. So I'm guessing there were more than one versions of the FS ZE...
well found out the proper intake cam. now onto the exhaust one