View Single Post
      03-19-2009, 11:35 AM   #29
smartys
Lieutenant
12
Rep
595
Posts

 
Drives: 07 e93 335i
Join Date: Dec 2007
Location: toronto, on

iTrader: (1)

Quote:
Originally Posted by Bubbles View Post
Dinan runs rich but his AFRs are a bit off, it should stay around 11:1-12:1 in the high RPM range. His fuel pump may be failing which could explain the dip and strange AFRs.

OP are you experiencing MPG loss? A failing fuel pump does not atomize fuel correctly which reduces MPG and HP.

Ya, that's what I'm figuring....but strangely I haven't noticed a real dip in MPG.....

but the car did feel more powerful immediately after the flash...it was also a LOT colder then, so it's hard to say whether it's temp related or not.....
__________________
SG | Coral Red | 6MT | Sports Pkg | CA | PDC | KWV2 | Dinan Stage II | Morr VS8 | Aero Lip |