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#632341 - 01/26/05 10:27 AM O2 sensors
ZG77PB Offline
n00b

Registered: 01/24/05
Posts: 10
hi guys, my cherry post haha

ok my service engine light came on and code was O2 sensor, just them cleaned out (by the guys who read the code) and then re-installed. It made a huge power difference, but now it was been about 2 weeks and the service engine light is on again so I think new O2 sensors are in order.....my question is how many are on my car and is there anything specific i should look for when buying them.

i have a 98 lincoln town car

thanks for all the help in advance

PB
_________________________
I have a 98 lincoln TC, bone stock and I need help to make it go ALOT faster.

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#632342 - 01/26/05 11:43 AM Re: O2 sensors
hbfd819 Offline
Rookie

Registered: 12/03/04
Posts: 94
Loc: KY
I would guess on four, just like the crown vics...two on each side.

Oxygen sensors suck anyways....
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I love crown vics. I hate it when they're broke down though. Thanks to everyone that has the knowledge to help others.

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#632343 - 01/26/05 01:23 PM Re: O2 sensors
2008interceptor Offline
Over the Hill

Registered: 09/02/02
Posts: 3162
Loc: Pennsylvania
There are 4 total 1 before each cat and 1 after each. Normally the front ones are the ones which go bad and cause a code and only the front ones would effect performance. You may want to have it rescanned as long as there isn't a charge since its possible it may be something else.
_________________________
2008 Ford Crown Victoria Police Interceptor P71 with street appearance package.

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#632344 - 01/26/05 02:31 PM Re: O2 sensors
Islandvic2 Offline
Climber

Registered: 01/07/05
Posts: 742
like purelux said, replace the fronts first.

Some 02's are universal with a wire pigtail with no connector. Dont get this one. Spend the extra $5-10 for OEM style with OEM wire harness. Wiring it yourself will cause problems in the future. Get the one with the OEM harness.

Bosch and BorgWarner are good aftermarket units.
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#632345 - 01/27/05 12:31 AM Re: O2 sensors
ZG77PB Offline
n00b

Registered: 01/24/05
Posts: 10
ok thanks alot guys this helps

PB
_________________________
I have a 98 lincoln TC, bone stock and I need help to make it go ALOT faster.

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#632346 - 01/27/05 02:45 AM Re: O2 sensors
Steve83 Offline
Poobah

Registered: 10/03/04
Posts: 7451
Loc: Memphis, TN 38002, USA, Earth,...
Just because you see the oxygen sensors mentioned in a code definition, that's not reason enough to change them. What was the FULL code definition? The source could be as simple as a vacuum leak, a sticking fuel injector, or a loose wire.
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Walk softly & carry a BIG SIX ! ! !

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#632347 - 01/27/05 10:50 PM Re: O2 sensors
cro-vic-94 Offline
Member

Registered: 03/29/02
Posts: 245
Quote:

code was O2 sensor, just them cleaned out




Okay, I may be a dinosaur out in the cold so long the ice age is getting to me, but this is a new one on me.

Can a person actually "clean" an O2 sensor satisfactorily? I always thought you just replaced them?
_________________________
2002 Grand Marquis, stock
1999 GMC 2500 Crew Cab

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#632348 - 01/28/05 09:45 AM Re: O2 sensors
ZG77PB Offline
n00b

Registered: 01/24/05
Posts: 10
update, the body shop that had my car...( i went in the ditch a month ago) said some wires were ripped off of O2 sensor and they re-connected them. then they sent it to a service shop to have the code read, i called them (service shop) and they told me about the wire thing, ( i had no idea about them being ripped off before this), anyway they said it was an O2 code and that the guys tried blowing them out and cleared the code. The car ran great for about a week and i could really notice the improved performance, then it started running with less power and about a week and a half after i got my car back from the service shop the service engine light came back on. this is the information that has been givin to me. oh and the car only has 54,000 miles on it. i think i am gonna see if the insurance company will pay for new O2's also, maybe they got damaged too, seeing how some of the wires got ripped off. how many miles should and average O2 sensor last anyway? anyone know?

PB


Edited by ZG77PB (01/28/05 09:46 AM)
_________________________
I have a 98 lincoln TC, bone stock and I need help to make it go ALOT faster.

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#632349 - 01/28/05 10:05 AM Re: O2 sensors
metroplex Offline
Metroplectic

Registered: 11/13/00
Posts: 49827
Loc: Motor City, USA
Quote:

Quote:

code was O2 sensor, just them cleaned out




Okay, I may be a dinosaur out in the cold so long the ice age is getting to me, but this is a new one on me.

Can a person actually "clean" an O2 sensor satisfactorily? I always thought you just replaced them?




One method to clean them is to use a MAP torch and heat the flute area until all the gunk burned off. Or wipe as much of the gunk off as possible, then heat it up again.

O2 sensors aren't cheap so its a budget band-aid fix.

I disabled my rear O2 sensors as they're not needed (SOP for SCT tunes BTW). The front O2 sensors are the most important.
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#632350 - 01/28/05 10:24 AM Re: O2 sensors
Big_Bad_Joe Offline

Poobah

Registered: 12/12/01
Posts: 8468
Loc: Rochester NY
oxygen sensors suck

the most important ones are the front

yeah seeing as how without an oxygen sensor an EFI computer controlled car just will not WORK dooh...

without a way to read the unburned fuel how does the computer know rich from lean? answer that ok?

good god I love this forum..

that was a good one Charlie and I know you are busting chops too !!!!

By the way the vette is running and today I am picking up the head with the replacement cam for the 4 banger.. I could have my garage back soon!

i have to find a place to host some pics and clips soon




PS if you think our stock 02 sensors are troublesome.. wait till you play with wideband! (patience! thats all I can say)
_________________________
2006 LX with HPPBlue, Light Camel Interior,Magnaflow Exhaust,PI Zip Tube
Underdrives from ADTR.net
Pioneer AVIC X930BT Nav system, JL xD400/4amp, JL Speakers, Audiovox backup camera
Given to DG in Ohio

2013 Ford Expedition Limited EL, Pearl White

2000 HPP RESURECTION RIP 8/17/2012 died in Dayton OH

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#632351 - 01/28/05 10:48 AM Re: O2 sensors
2008interceptor Offline
Over the Hill

Registered: 09/02/02
Posts: 3162
Loc: Pennsylvania
If some of the wires got ripped out they probably saudered or twisted and capped or taped them. The sensor is probably fine if it was before the ditch. The wiring sounds like the problem and it may be possible to fix the harness but may need replaced.
_________________________
2008 Ford Crown Victoria Police Interceptor P71 with street appearance package.

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#632352 - 01/28/05 05:44 PM Re: O2 sensors
99_03PantherS Offline
Poobah

Registered: 03/23/03
Posts: 9577
Loc: NW side Chicago
my mom needs new ones bad. we get horrible gas mileage. so the ones in the front/before the cats are for mileage/performance? im also gunna have to check the cats too..
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Jason G.
'06 Towncar Designer
'81 Mark VI 2 door
'88 Towncar Cartier
'07 P71 SAP- steedas, jmod, 410s, Mo's tune, numerous interior exterior mods.
'16 F-450 V10 DRW
'08 F-450 Powerstroke DRW: DPF,EGR delete, AFE intake Spartan powered.
RIP 94 P71, 97 P71, 99 M74, 03 M74

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#632353 - 01/29/05 01:49 AM Re: O2 sensors
Steve83 Offline
Poobah

Registered: 10/03/04
Posts: 7451
Loc: Memphis, TN 38002, USA, Earth,...
Oxygen sensor wires can't be repaired reliably. Your insurance should pay for new ones to be installed as latent wreck damage.
_________________________
Walk softly & carry a BIG SIX ! ! !

. . .

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#632354 - 02/02/05 09:40 AM Re: O2 sensors
ZG77PB Offline
n00b

Registered: 01/24/05
Posts: 10
in an earlier reply islandvic said "Some 02's are universal with a wire pigtail with no connector."

I have a friend that has a 95 GT mustang and he bought new O2's for his thinking they were bad, but they were not bad. he offered them to me but i don't know if they will work or not. i haven't seen them yet, i told my friend i would check first to see if they were compatible or not.

does anyone know?

PB
_________________________
I have a 98 lincoln TC, bone stock and I need help to make it go ALOT faster.

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#632355 - 02/02/05 02:09 PM Re: O2 sensors
Islandvic2 Offline
Climber

Registered: 01/07/05
Posts: 742
Easiest way to find out is to either call stealership or autoparts store and ask if your 98 TC's 02 part # x-overs to the 95 Stang's 02 part number.

Good Luck
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