I searched every post I could find about fuel pressure and the aem fpr in forced induction Anyway, when I disconnect the vacuum line from my aem fpr the fuel pressure stays the same! It's supposed to go up isn't it? What would cause this? The fuel pressure gauge is a jegs mounted right before the fuel rail and vacuum is coming straight off the mani with no t's... Thanks.

Nate

 

It sounds like you have the adjustment screw (on the top) backed all the way out.

Sonny

 

It's out, but I don't think it's all the way out... fuel pressure is set at ~40psi. Also I checked the diaphram and it looks fine.

 

I'll probably just end up going back to the stock regulator. anybody else have any input?

 

My aeromotive has never failed me. AEM should be fine, check those lines one more time.

 

Never had a problem with the AEM. You may want to check the nipple and make sure it is drilled all the way through.

 

It's getting vacuum, but I'm stumped. Would the size of the drain back fitting have anything to do with it? thanks.

 

Unless you need to get more fuel out of your injectors stick with the OEM regulator, or you have 900cc+ injectors (turn the base fuel pressure up to help idle/off-boost drivability).

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rtype16 &raquo;</TD></TR><TR><TD CLASS="quote">Never had a problem with the AEM. You may want to check the nipple and make sure it is drilled all the way through.</TD></TR></TABLE>

Your right. The fricken damn nipple was plugged this whole time!! I bought it used and didn't even think about checking it. That would explain the bogging. I drilled it out and there was some kind of pink crap in there... thanks.

Nate

 

It was red loctite most likely.

 

Hopefully it hasn't been running too lean.. amazing how smooth the car is again Lesson learned.