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Dec 21, 2009 | 12:41 PM

bohiaa

Thread Starter

Elder User

Joined: Mar 2006

Posts: 588

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From: Bellville TX. Wof Houston

codes

hay all,

2000 F250 SD 4X4 throwing a po174 & 171
Too lean bank 2 & 1

this leaves a lot to check

can anyone guide me in the right direction ?

Dec 21, 2009 | 02:10 PM

Monster-4

Logistics Pro

Joined: Aug 2007

Posts: 3,974

Likes: 18

From: Millersburg, OH

I take you have a gas engine? Most common problem when getting these codes is a vacuum leak at the PCV line going into the TB. There is a 90 degree elbow that likes to crack.

Dec 21, 2009 | 02:54 PM

bohiaa

Thread Starter

Elder User

Joined: Mar 2006

Posts: 588

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From: Bellville TX. Wof Houston

Ok will check this out. Yes it's a gasser the 10 cyl, " guess I forgot to include that little tid-bit of info"

Thanks a million

Dec 21, 2009 | 06:57 PM

fordtech08

Posting Guru

Joined: Aug 2008

Posts: 1,211

Likes: 1

also check your maf, alot of people like to use Krap&Nasty air filters covered in oil that makes your maf read wrong( you get oil cover the wires so it doesn't see all the air that goes by it) even with out the filters they can get dirty

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