Notices
Excursion - King of SUVs 2000 - 2005 Ford Excursion
Sponsored by:
Sponsored by:

01 excursion V10 o2 sensors

Thread Tools
 
Search this Thread
 
Old May 22, 2012 | 11:36 PM
  #1  
Locksmith1's Avatar
Locksmith1
Thread Starter
|
Junior User
Joined: May 2012
Posts: 62
Likes: 0
01 excursion V10 o2 sensors

Hi guys, Looking for a little info if anyone has it...

01 excursion V10
My AE is showing a o2 sensor ( b1s1 or b1s2 - I forget which ) is flat at 0v and the fuel trim is 99.03. In comparison to the other o2 sensor, Im guessing it has gone bad ( No Code )

1. Am I correct to assume that there are only 2 as the AE system only show b1s1 and b1s2 ?

2. Is it worth it to replace both / all 3 / all four ?

3. Brand ?


Thanks.
 
Reply
Old May 22, 2012 | 11:45 PM
  #2  
carnutt's Avatar
carnutt
New User
Joined: May 2012
Posts: 4
Likes: 0
02 sensors

there are 4..b1s1 @b1s2 are on one side and b2s1 @b2s2 are on the other side ...sensor one before CAT sensor 2 is after CAT..hope it helps ..replace one at a time they are aprox 90 bucks each
 
Reply
Old May 23, 2012 | 08:45 AM
  #3  
Locksmith1's Avatar
Locksmith1
Thread Starter
|
Junior User
Joined: May 2012
Posts: 62
Likes: 0
My AE told me which one, but it only showed 2 b1s1 and b1s2... Thanks
 
Reply
Old May 23, 2012 | 12:39 PM
  #4  
tdappleman's Avatar
tdappleman
Fleet Mechanic
Joined: Sep 2002
Posts: 1,388
Likes: 2
From: Greensboro, NC
My 03 only has 2 - went ahead and replaced both when the heater on one of mine went out.
 
Reply
Old May 23, 2012 | 06:33 PM
  #5  
ComputerCowboy's Avatar
ComputerCowboy
Posting Guru
Joined: Dec 2011
Posts: 1,016
Likes: 0
Wink

Originally Posted by carnutt
there are 4..b1s1 @b1s2 are on one side and b2s1 @b2s2 are on the other side ...sensor one before CAT sensor 2 is after CAT..hope it helps ..replace one at a time they are aprox 90 bucks each
There are only two sensors yes, however there is one on each manifold and NONE after the CAT.

Since the truck is over 8,500 GVWR Ford didn't have to put sensors after the CAT. The EPA regulations are more lenient for larger light trucks. This is a good thing because I means you can kill the CAT without tricking out the computer with simulators.
 
Reply
Old May 23, 2012 | 08:11 PM
  #6  
Locksmith1's Avatar
Locksmith1
Thread Starter
|
Junior User
Joined: May 2012
Posts: 62
Likes: 0
Thanks again for the info.
I went under tonight after work and looked and looked and looked. I can only see 2 as stated here. My AE Software shows only 2.
B1S1 voltage varies from .1 to .8 and the fuel trim is pretty much around 0
B1S2 voltage is reading 0.00 and fuel trim is 99.03

So, I got the tool and the sensor and changed the one that was easier to get to... The Drivers side. And B1S2 is still not functioning

What I am coming up with is :

B1S1 is Drivers side
B1S2 is Passanger Side.

Is this correct ?

Which is completely opposite to what I have read in other posts...

B1S1 Front Pass
B1S2 Rear Pass Side
B2S1 Front Driver
B2S2 Rear Driver
 
Reply
Old May 23, 2012 | 08:13 PM
  #7  
Locksmith1's Avatar
Locksmith1
Thread Starter
|
Junior User
Joined: May 2012
Posts: 62
Likes: 0
And what confused matters, The guy at the parts store asked me which one I wanted... Pre or Post Cat..
 
Reply
Old May 25, 2012 | 07:07 PM
  #8  
Locksmith1's Avatar
Locksmith1
Thread Starter
|
Junior User
Joined: May 2012
Posts: 62
Likes: 0
Now I have replaced both o2 sensors and there is still 0v out of B1s2...fuel trim is still at 99.03 ...

I dont mind doing the work unless Im wasting my time and money... Getting my arm stuck in the exaust is not fun... Being trapped under the truck with my arm stuck in the exaust is even less fun...


Any Ideas?
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

10 Ways Ford is LOSING to the Competition

 Joe Kucinski
story-1

Top 6 Best Deals Available on New Fords & Lincolns Right Now

 Brett Foote
story-2

This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

 Verdad Gallardo
story-3

Top 10 Fords at 2026 Carlisle Ford Nationals

 Joe Kucinski
story-4

3 Best / 3 Worst Parts of Modern Ford Ownership

 Brett Foote
story-5

10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

 Pouria Savadkouei
story-6

Every 2026 Ford Engine Explained

 Brett Foote
story-7

10 Ugly Ford Trucks That We Still Kinda Love

 Joe Kucinski
story-8

10 Things Every Truck Owner NEEDS (2026 Edition)

 Michael S. Palmer
story-9

Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

 Verdad Gallardo
Old May 25, 2012 | 07:45 PM
  #9  
nzirbel's Avatar
nzirbel
More Turbo
20 Year Member
Photogenic
Joined: Sep 2003
Posts: 581
Likes: 7
From: IOWA
Club FTE Silver Member

Clean your MAF sensor and reset the computer. I know it sounds dumb but it might be the cure. I had a code checked and it pointed towards a bad pass o2 sensor. Had it reset and the next time it said bad drivers o2 sensor. Did some research, cleaned the maf and reset the computer and no more problems or codes!
 
Reply
Old May 25, 2012 | 08:09 PM
  #10  
Locksmith1's Avatar
Locksmith1
Thread Starter
|
Junior User
Joined: May 2012
Posts: 62
Likes: 0
I will do that... How clean ? With what ?

The o2 was not giving a code.. Just the AE showed it not having any output voltage. From Im guessing now the O2 sensors were not bad. I guess AE only supports B1S1 and B1S2 which from what I gather are both on the Pass side however, There are not any O2 sensors after the Cat. But I did notice that the overhead trip computer is More responsive, The MPH had began to change a little as I drove and after changing the other 02 sensor, it really changes with the amout of throttle I use..which before It might have changed only .1 MPG in a day.. and now it will drop to 0 MPG is sitting at idle for a few minutes, Before It would only say 8.5..
 
Reply
Old May 25, 2012 | 08:15 PM
  #11  
Locksmith1's Avatar
Locksmith1
Thread Starter
|
Junior User
Joined: May 2012
Posts: 62
Likes: 0
maybe change the o2 sensors will take care of the P1000 ( readiness not complete ) which has been showing since I got the truck ( 2 yrs )
 
Reply
Old May 25, 2012 | 08:18 PM
  #12  
nzirbel's Avatar
nzirbel
More Turbo
20 Year Member
Photogenic
Joined: Sep 2003
Posts: 581
Likes: 7
From: IOWA
Club FTE Silver Member

Clean it with MAF sensor cleaner or quick dry electronics cleaner, there was a write up on it not too long ago.
 
Reply
Old May 25, 2012 | 08:23 PM
  #13  
Locksmith1's Avatar
Locksmith1
Thread Starter
|
Junior User
Joined: May 2012
Posts: 62
Likes: 0
I never heard of it.. But thanks

Ill let you know
 
Reply
Old May 25, 2012 | 08:41 PM
  #14  
TrdLtly's Avatar
TrdLtly
TreadLightly
Joined: Oct 2006
Posts: 1,608
Likes: 0
From: SE Missouri
https://www.ford-trucks.com/forums/5...=1#post8490555
 
Reply
Old May 25, 2012 | 08:41 PM
  #15  
wpnaes's Avatar
wpnaes
FTE Chapter Leader
15 Year Member
Photogenic
Liked
Loved
Joined: Nov 2010
Posts: 30,595
Likes: 1,236
From: N. IL
Originally Posted by Locksmith1
I will do that... How clean ? With what ?

https://www.ford-trucks.com/forums/1...eanup-day.html
 
Reply



All times are GMT -5. The time now is 11:47 AM.

story-0
10 Ways Ford is LOSING to the Competition

Slideshow: 10 ways Ford is losing to the competition

By Joe Kucinski | 2026-06-15 09:52:01


VIEW MORE
story-1
Top 6 Best Deals Available on New Fords & Lincolns Right Now

Some great targets in today's expensive world.

By Brett Foote | 2026-06-15 09:35:19


VIEW MORE
story-2
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-3
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-4
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-5
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-6
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-7
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-8
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-9
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE