Son of a gun

[LX_TREME]

I like to drive cross country with my 80 from West coast to East coast ( CA- NY 3000 miles) I guess for last 3 yrs when I was in New York City I drove the 80 in the winter time thru snow and salt.Of course not with my bling-bling rims

I haven't replaced the O2 sensors in 10 years since I purchased the LX new, so last Saturday I decided to do some wrenching .Thank you CDan, for new 02 sensors.Replaced # 1 sensor no problem at all but once I get to the number 2 sensor (the one after the cat) didn't know it was rusted and busted the nut on the # 2 sensor.

Short story, friend of mine owned junk yard and told me he had ' 01 Tundra V8 down pipe and came with the O2 sensor housing, these ' 01 Tundra had same exact O2 housing for 80s landcruiser. So I cut both pipes nicely (The Tundra and my 80s 3 inch pipe) and weld the Tundra O2 housing onto the pipe.Plug the OBD II scanner and check to see if there's problem but everything good, no data and no problem.

Now my question is, How often or How many time do you need to replace both O2 sensors? Every year, every two year?

 

[CJF]

How often or How many time do you need to replace both O2 sensors?

Maintenance schedule in the owner's manual and/or FSM says every 80k IIRC. Anyone second that?

Curtis

 

[cary]

80-100k miles should be plenty.

 

[Dan Skye]

dummy question
How (do I know) if my o2 sensors need replacing?

 

[alaskacruiser]

LX_TREME- I didn't know people did O2 sensors as PM. Why not just wait until it throws a code and then replace them? Unless you're seeing gas mileage dip or some other problem, I see no benefit in replacing them before they trigger a code.

 

[Desertmaster]

I only replaced one of them since I owned the truck (6 years ago) and I never got a code to do the second one.....so far so good and no issues since then.

 

[LX_TREME]

My CEL came on after replaced the whole system with JDM exhaust manifold, 3 in mandrel bent pipe and # 43009 OBD II magnaflow cat, plugged my OBD II scanner and its shown # 1 O2 sensor failed (The one before the cat) and insufficient catalytic -defective magnaflow cat.

The cat still under warranty Magnaflow replaced me with new one ( CARB OBD II ) and replaced both O2 sensors from CDan.Its good now.Clean no data, no problem at all.

 

[reffug]

LX_TREME- I didn't know people did O2 sensors as PM. Why not just wait until it throws a code and then replace them? Unless you're seeing gas mileage dip or some other problem, I see no benefit in replacing them before they trigger a code.

I would second this opinion. Things like that are sleeping dogs IMO, and I like to let them stay that way unless necessary in large part due to the type of thing that happened in this instance.

 

[agomez]

Maintenance schedule in the owner's manual and/or FSM says every 80k IIRC. Anyone second that?

Curtis

second .....replaced both at 70 and 160k like clock work both times threw the cel....I reccomend changing both...

 

[Sully]

Totally off-topic, but that is a SWANK truck! We need lots more pictures of it in a centralized location (like ROTW), so we don't have to hunt through your threads looking for pixellated crumbs. Now back to your regularly scheduled thread.

 

[NorCalDoug]

have you ever used that trailer hitch?

 

[Dan Skye]

More pics

Totally off-topic, but that is a SWANK truck! We need lots more pictures of it in a centralized location (like ROTW), so we don't have to hunt through your threads looking for pixellated crumbs. Now back to your regularly scheduled thread.

Or not!~
Hey LX, how about some pics of the next off road event you go to: would love to see ya crawlin on the giant rocks or winching yer ass out of mirror deep mud.......
I keed, I keed
I would not dream of takin mine into the wilderness either since I cant even afford to pay attention for one thing.My idea of advernture is "gettin over the snowhill at the bottom of the driveway the plow left "to quote the J**P commercial if I may....
Actually it is a testament to the 80's versatility and the mudders open mindedness that there is such a wide range of owners in this checkerd lot.

Rock on brotha !(even if you or I never actually crawl over one)
D

 

[Ting]

have you ever used that trailer hitch?

Better question: Have you ever used your lockers?

 

[cary]

Waiting to replace your O2 sensors until they throw a code is like waiting to have a heart attack until you decide to get cholesterol checked. The code is the final warning that the thing is dead.

02 sensors do wear out. As they age, they will respond more slowly to mixture changes resulting in slower adjustments. Since both age, they can also cause slow changes in the actual mixture as they age. The results can be felt in many ways:

1) Cat converters age and wear out prematurely as they are fed overly rich mixtures or constantly changing mixtures that cause them to run hotter and use up their finite supply of the sacrificial catalyst faster.

2) As the car runs richer, it gets more carbon buildup leading to pinging, po401 codes, and faster fouling plugs, etc.

2) The richer mixture and the carbon buildup will cause the mileage to go down and you to lose performance.

 

[LX_TREME]

You guys too much We talking about the O2 sensor here

have you ever used that trailer hitch?

The rear hitch just for lil rear protection, I'm afraid some young age driver or teenage driver too busy chit-chatting or talking on the phone forgot to stop, rear end me while I enjoy the ride.

Better question: Have you ever used your lockers?

Of courser once month around speed bump and some curb

 

[Dan Skye]

new forum ??>

=LX_TREME;1765352]You guys too much We talking about the O2 sensor here

The rear hitch just for lil rear protection, I'm afraid some young age driver [quote}


A new forum for us "posers" called"I hate dents"?

 

[NorCalDoug]

You guys too much We talking about the O2 sensor here



The rear hitch just for lil rear protection, I'm afraid some young age driver or teenage driver too busy chit-chatting or talking on the phone forgot to stop, rear end me while I enjoy the ride.

I was only asking becasuse I would've pulled it...but I see that yours is painted to match. Nice

Smart to keep as well for the reason you give...although, as low as your rig is, I'm not sure you'd get much protection unless you're hit by a slammed mini-truck or a civic

as always for a very sweet rig.

 

[Pete483]

Do you happen to know if the front sensor section of the pipe can be replaced by a tundra one as well? I've been getting slow 02 sensor codes once every month or two for a little while and would change them, but my truck grew up in MN and the O2 sensors and exhaust are unrecognizable rust.

 

[LandCrusher'70]

Waiting to replace your O2 sensors until they throw a code is like waiting to have a heart attack until you decide to get cholesterol checked. The code is the final warning that the thing is dead.

02 sensors do wear out. As they age, they will respond more slowly to mixture changes resulting in slower adjustments. Since both age, they can also cause slow changes in the actual mixture as they age. The results can be felt in many ways:

1) Cat converters age and wear out prematurely as they are fed overly rich mixtures or constantly changing mixtures that cause them to run hotter and use up their finite supply of the sacrificial catalyst faster.

2) As the car runs richer, it gets more carbon buildup leading to pinging, po401 codes, and faster fouling plugs, etc.

2) The richer mixture and the carbon buildup will cause the mileage to go down and you to lose performance.

Reduced mileage, pinging, PO401 codes, running rich (smelly exhaust). Hmmm. The O2 sensors could be the root of my problem(s).

 

[knorrena]

What I wanna see is unda da hood. Cmon man show us wat unda da hood!

Karl