alright my base fp at idle keeps increasing randomly. im not even changing anything and its gone from 45-52-60psi in the past few days. im gonna get a new fpr tomorrow, could it be anything else???

im running a -6 braided fuel feed system with and earls inline filter and a b&m fp gauge mounted right on the inlet side of my fuel rail...

 

up

 

you didnt mention what fpr you have.

 

oem

 

...and the pump?

 

walbro 255, not the high pressure one. ive used the same pump in a few setups with no problems. it should have around 30k miles on it.


i just swapped my oe fpr with another oe fpr and it is still happening, 60 psi

 

Sounds like the pump is overwhelming the FPR.

 

is your idle normal?

 

a ripped diaphram would make no pressure? or would it increase pressure?

either way, change it and report back

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b16a4 &raquo;</TD></TR><TR><TD CLASS="quote">is your idle normal?</TD></TR></TABLE>

afr at idle is rich. ive got it tuned for high 13's and its pulling very high 12's.


im 99% its my b&m fp gauge thats bad. i took my fuel feed system off and with no fuel at all in the line the gauge reads 20 psi. then i hooked it to my air compressor and pressurized just the line with 30 psi and the gauge was reading in the low 50's.

cliffs notes, im pretty sure my fp gauge is 20psi off