UPDATE:still missing though

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Sep 27, 2009 | 03:43 PM

#16

Matts ford

Senior Member

Joined: Nov 2007

Posts: 3,271

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From: whaleyville, MD

Quote:

Originally Posted by f150fella08

ok so i pulled the codes, they are P1151 P0172 P0175 and P0174

all oxygen sensor codes, where do we go now, he wants to replace the oxygen sensors, i told him to hold off until we can figure this out.

hes ready to get this fixed so he can sell it and get a new 3/4 ton

p0172-bank 1 indicates rich
p0174-bank 2 indicates lean
p0175-bank 2 indicates rich
p1151-Lack Of HO2S21 Switch - Sensor Indicates Lean

are there any exhaust leaks? has the truck ever had work done to it? is the maf clean?
http://www.v8sho.com/SHO/TSB0197HO2SServiceTips.htm

Sep 27, 2009 | 03:51 PM

#17

f150fella08

Thread Starter

Senior Member

Joined: Feb 2008

Posts: 4,637

Likes: 2

From: Pittsburg, Texas

Quote:

Originally Posted by Matts ford

no exhaust leaks, exhaust had NEVER been touched, he poured in a whole can of seafoam when he filled up the other day and theres alot of black build up on the tailpipe, MAF never been cleaned, couldnt hurt eh, should i change the 02s? and could there be a problem with the converters???