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2008 Ford Crown Vic P0152 Code #5006049
02/09/19 07:22 PM
02/09/19 07:22 PM
Joined: Apr 2017
Posts: 1,888
San Rafael, CA
dogememe Offline OP
dogememe  Offline OP

Joined: Apr 2017
Posts: 1,888
San Rafael, CA
Just picked up this car, it has a code for a bad O2 sensor (b2s1) but the sensor seems fine as per the data on the scantool?

Any suggestions appreciated.

[Linked Image]

[Linked Image]

PS: I also have a P1233 code, which I have to troubleshoot after, but one thing at a time I guess since they seem like two unrelated things.

Last edited by dogememe; 02/09/19 07:28 PM.

2010 Ford Escape 2.5 ~95K Miles
Royal Purple 5W-30 ~ Wix 51348
1995 Chevy Silverado 5.7 ~277K Miles
Delo 10W-30 ~ ACDelco PF52
Re: 2008 Ford Crown Vic P0152 Code [Re: dogememe] #5006063
02/09/19 07:36 PM
02/09/19 07:36 PM
Joined: Dec 2006
Posts: 2,880
Columbus, Ohio
John_K Offline
John_K  Offline

Joined: Dec 2006
Posts: 2,880
Columbus, Ohio
Our 09 Grand Marquis throws that code about once a year. Then it stops. I ignore it.


2009 Mercury Grand Marquis, 8 cyl auto, 85xxx miles, PU/Fram Ultra
2005 Hyundai Sonata, 4 cyl auto, 97xxx miles, Maxlife/OEM Filter
Current oil stash: 500 qts.


Re: 2008 Ford Crown Vic P0152 Code [Re: John_K] #5006075
02/09/19 07:45 PM
02/09/19 07:45 PM
Joined: Apr 2017
Posts: 1,888
San Rafael, CA
dogememe Offline OP
dogememe  Offline OP

Joined: Apr 2017
Posts: 1,888
San Rafael, CA
Originally Posted by John_K
Our 09 Grand Marquis throws that code about once a year. Then it stops. I ignore it.

I can't ignore it, unfortunately. Code = fail smog = no registration.


2010 Ford Escape 2.5 ~95K Miles
Royal Purple 5W-30 ~ Wix 51348
1995 Chevy Silverado 5.7 ~277K Miles
Delo 10W-30 ~ ACDelco PF52
Re: 2008 Ford Crown Vic P0152 Code [Re: dogememe] #5006092
02/09/19 07:57 PM
02/09/19 07:57 PM
Joined: Aug 2017
Posts: 834
MN
14Accent Offline
14Accent  Offline

Joined: Aug 2017
Posts: 834
MN
My Marauder threw the same code. My data looked just like yours, but the PCM didn't like it. A Motorcraft sensor is around $45, just replace it.


2013 Chevrolet Volt - Saves enough in fuel to pay for itself!

2003 Cadillac Seville STS - The winter "beater", it uses the Volt's fuel
Re: 2008 Ford Crown Vic P0152 Code [Re: dogememe] #5006228
02/09/19 09:42 PM
02/09/19 09:42 PM
Joined: Apr 2017
Posts: 1,888
San Rafael, CA
dogememe Offline OP
dogememe  Offline OP

Joined: Apr 2017
Posts: 1,888
San Rafael, CA
Ok, thanks all, will replace it tomorrow. It looks like this one is easy to get to from above, it's right next to the steering shaft (which was recently replaced, hmm...) Just not sure how to get to the connector. Guess I'll figure that out once I yank it out. I hate Bosch O2 sensors but that's what I'm going to be installing since Denso and Motorcraft are special order for this applies.


2010 Ford Escape 2.5 ~95K Miles
Royal Purple 5W-30 ~ Wix 51348
1995 Chevy Silverado 5.7 ~277K Miles
Delo 10W-30 ~ ACDelco PF52
Re: 2008 Ford Crown Vic P0152 Code [Re: dogememe] #5006376
02/10/19 01:13 AM
02/10/19 01:13 AM
Joined: Oct 2008
Posts: 4,213
Kuwait
Falcon_LS Offline
Falcon_LS  Offline

Joined: Oct 2008
Posts: 4,213
Kuwait
Yeah, they won't let it pass smog with that code.

Go ahead and replace both sensors, since one started acting up, the other one won't be too far behind.

The OE sensor is NTK, I'm actually running Bosch, which has been my go-to, never had any problems. The connectors are a bit of a pain in the back to get to, and a bit of a reach.


Petro-Canada Duron HP 15W-40 CK-4/SN
99 Explorer: H17W02
00 Pajero: XG9688
01 Grand Marquis: XG2
03 Expedition SSV: XG2
05 Envoy: XG9837
06 XJ8L: C2C41611
07 SRX: XG8765
Re: 2008 Ford Crown Vic P0152 Code [Re: dogememe] #5006730
02/10/19 12:11 PM
02/10/19 12:11 PM
Joined: Aug 2017
Posts: 834
MN
14Accent Offline
14Accent  Offline

Joined: Aug 2017
Posts: 834
MN
The connector was tough on mine too, but at least with a SOHC you can get to the sensor. The heads on the DOHC 4.6 are so wide that I had to do it from below.


2013 Chevrolet Volt - Saves enough in fuel to pay for itself!

2003 Cadillac Seville STS - The winter "beater", it uses the Volt's fuel
Re: 2008 Ford Crown Vic P0152 Code [Re: 14Accent] #5006810
02/10/19 01:37 PM
02/10/19 01:37 PM
Joined: Apr 2017
Posts: 1,888
San Rafael, CA
dogememe Offline OP
dogememe  Offline OP

Joined: Apr 2017
Posts: 1,888
San Rafael, CA
Originally Posted by 14Accent
The connector was tough on mine too, but at least with a SOHC you can get to the sensor. The heads on the DOHC 4.6 are so wide that I had to do it from below.

I hope I can do it from above? Going to try to change it on my lunch break!


2010 Ford Escape 2.5 ~95K Miles
Royal Purple 5W-30 ~ Wix 51348
1995 Chevy Silverado 5.7 ~277K Miles
Delo 10W-30 ~ ACDelco PF52
Re: 2008 Ford Crown Vic P0152 Code [Re: 14Accent] #5007002
02/10/19 03:58 PM
02/10/19 03:58 PM
Joined: Apr 2017
Posts: 1,888
San Rafael, CA
dogememe Offline OP
dogememe  Offline OP

Joined: Apr 2017
Posts: 1,888
San Rafael, CA
Originally Posted by 14Accent
The connector was tough on mine too, but at least with a SOHC you can get to the sensor. The heads on the DOHC 4.6 are so wide that I had to do it from below.

Ok, I unscrewed the old sensor and installed the new one. Can I unplug the old one and plug the new one in without getting underneath the car?


2010 Ford Escape 2.5 ~95K Miles
Royal Purple 5W-30 ~ Wix 51348
1995 Chevy Silverado 5.7 ~277K Miles
Delo 10W-30 ~ ACDelco PF52
Re: 2008 Ford Crown Vic P0152 Code [Re: dogememe] #5007174
02/10/19 06:16 PM
02/10/19 06:16 PM
Joined: Aug 2017
Posts: 834
MN
14Accent Offline
14Accent  Offline

Joined: Aug 2017
Posts: 834
MN
I can't remember exactly where the connector is but I remember having a hard time disconnecting and reconnecting. Follow the wire back and find the connector.


2013 Chevrolet Volt - Saves enough in fuel to pay for itself!

2003 Cadillac Seville STS - The winter "beater", it uses the Volt's fuel
Re: 2008 Ford Crown Vic P0152 Code [Re: 14Accent] #5007179
02/10/19 06:20 PM
02/10/19 06:20 PM
Joined: Apr 2017
Posts: 1,888
San Rafael, CA
dogememe Offline OP
dogememe  Offline OP

Joined: Apr 2017
Posts: 1,888
San Rafael, CA
Originally Posted by 14Accent
I can't remember exactly where the connector is but I remember having a hard time disconnecting and reconnecting. Follow the wire back and find the connector.

Yeah, I found the connector, and by pulling the old (still connected) O2 sensor upwards I can almost get to it, but it's just a little too deep between the engine and firewall to get to it. I feel like this should be easy but I'm missing something obvious. I'm trying to avoid getting underneath the car.


2010 Ford Escape 2.5 ~95K Miles
Royal Purple 5W-30 ~ Wix 51348
1995 Chevy Silverado 5.7 ~277K Miles
Delo 10W-30 ~ ACDelco PF52
Re: 2008 Ford Crown Vic P0152 Code [Re: dogememe] #5008310
02/11/19 08:22 PM
02/11/19 08:22 PM
Joined: Apr 2017
Posts: 1,888
San Rafael, CA
dogememe Offline OP
dogememe  Offline OP

Joined: Apr 2017
Posts: 1,888
San Rafael, CA
Well, sometimes I try too hard to be lazy. I drove the car onto ramps and had it all done in about 30 seconds. Getting to the connector from underneath was ez-pz.


2010 Ford Escape 2.5 ~95K Miles
Royal Purple 5W-30 ~ Wix 51348
1995 Chevy Silverado 5.7 ~277K Miles
Delo 10W-30 ~ ACDelco PF52
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