E46Fanatics - View Single Post - at wits end on P0171 & p0174
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Old 12-29-2012, 04:43 PM   #1
alvin bryan lim
Registered User
Join Date: Nov 2006
Location: belmont shore, long beach
Posts: 36
My Ride: 330ci
at wits end on P0171 & p0174

hey there guys i need help on my current problem. i'll make this as simple to read as possible just because i hate reading large paragraphs as well.

* pulled codes P0171 and P0174
- replaced: intake rubber boot
- vent pipe
- return pipe
- tube elbow
- cleaned MAF
- replaced air filter
- replaced gas cap

(no rough idle, but alittle loss of power)

= results is SES still on, MPG meter (below tachometer) goes up to 20 or more right before stopping. gas is killing me

*** i''m going to clean the throttle house assembly today, just as soon as it stops raining.

I need help guys!

king kong ain't got nothing on me!

Last edited by alvin bryan lim; 12-29-2012 at 04:46 PM. Reason: need to put that important part in there
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