tacoma o2 sensor stud

hello, tacoma owners.

today i decided to check my o2 sensor since i had a check light engine and bank one was running lean according to the ob-2 machine the checked with at auto zone i had already replace the mass airflow sensor but it still stayed on. so i decide to check my o2 sensor . while i was taking off the o2 sensor i snapped the stud clean off the other did not break but now i am un sure of what to do know would it be fine to buy a new o2 sensor and just put it on and tighten the one stud real good or is there something i should do this is my first automobile so if any body could take time there time and reply to help me in my post i would be very grateful i can post pictures if that would help.

 

Yeah...that sucks.
Post a picture if you can. Pictures can help others give better advice since they know what you're dealing with.

 

alright i uploaded it sorry it took so long I'm very new to forums.

 

I can't tell & don't know how it's fitted in though. Sorry. But you should be able to drill the rest of it out, and replace it.
There are a lot of youtube videos on how to drill out broken bolts.

 

well I put it back on to see how tight it would be with out the other stud and it felt very secure and lock into place do you think it would be a bad idea to just replace the o2 sensor and forget about trying to replace the stud?

 

you got several options.

you can try to extract the stud by drilling the center of it out and using a straight or spiral flute extractor to remove it (will probably need a torch to help you get it out, heating it up really does help).

you could retap the hole by drilling it out and fixing the thread with a new thread tap.

you couild drill out the current stud and use a helicoil to get it back to the thread it's supposed to be.

or you can just buy a new header pipe. which costs about 56 bucks from rockauto if you have a 2.4l or 65 if you have a 2.7.

for those prices, I'd go with getting a new pipe. drill bit will cost what, 15 bucks for a good one. tap and or extractor will cost another 20 bucks while helicoils cost around 65. plus the extra time and torch, youre probably already passing the cost of buying a whole new pipe......

good luck!

oh yeah!!! if you have a welding buddy, you could vice grip the sensor on and have your buddy tack a couple of spot welds on the broken stud side to hold it in place. that may work as well, still a chance it wont fully hold the sensor down against the gasket. youd just need to cut the welds with a dremel and or cut off wheel/die grinder if you ever had to remove it again.

 

thank you for giving me all these ways to solve my issue . i will most likely do as you said and purchase a whole new pipe . do you think that my o2 sensor is the reason I'm running lean in bank 1? i gotten p0171 and p1135 both times iv had the people at auto zone and o' reileys check my check engine light i noticed that when push down on the peddle it dosent feel like it has a lot of acceleration i just bought the truck like a month ago with the check light engine on hope i didn't make a mistake in buying it the guy told me the check light engine was on because of the 02 sensor but I'm not to sure if that the only problem.

 

p0171 - system too lean - too much air getting in your intake. this is usually a vacuum leak.

p1135 - malfunctioning o2 sensor B1S1.

first things first. codes are given in an "in order" fashion. therefore, whichever code is given first, should be addressed first. fix your air intake issue. which could be a vacuum leak, or it could be a faulty mass air flow sensor.

once p0171 is fixed, wait a bit to see if p1135 stays. then fix if it does.

 

will do, on the vacume leak since i dont have smoke machine i was gonna buy some tubeing from advance auto part and use a cigaret or something simaliar to blow smoke into the tube and see where it was leaking from i seen it on a youtube video and it seemed easy and cheap. the only problem i ran into was that i had no clue where i should connect the tube to run the smoke thru the system . any sugestion ? also when i pulled out my o2 sensor and it was very black and burnt looking even the gasket was burnt .i was reading on it and it was saying that if it was white then it was coolant if it black it running rich could it also mean that it runing lean as well? after reading that it got me confused because the auto part store and ob II are saying it lean and the internet it rich if you could eleborate on that for me it would be very much appreciated. and thank for the rock auto website. i was looking into it and there is some great stuff on there way cheaper then auto part stores.

 

for vacuum leaks, you have to just listen. try spraying water around any vacuum tubes and listen for a water suction sound. thats all you can really do. start there

 

This post was timely ... my '01 PreRunner just threw out P0171, P1130 & P1135. My plan is to clean the MAF and if codes return, replace B1S1 O2 sensor.

 

On this exhaust pipe; the term "vacuum leak", does not apply.

There is no vacuum in the exhaust system.

Vacuum leaks are in the intake system.

 

that is gonna leak and cause codes


you really want it fixed ? need a new OEM set of pipes

or have a muffler shop cut that out and weld in a new bung and flange

 

I pulled the MAF and it looked brand new, but I sprayed the two sensors down with CRC MAF Cleaner for good measure and erased the codes. A new O2 sensor costs $175 (Bosch or Denso) and a new MAF is $110 (AuotZone house brand) and even though the MAF is cheaper, I'm thinking the O2 is the one more likely to fail. So that will probably be my first shot at resolution if the codes return.

Thoughts ?

 

Nobody here is talking about a vacuum leak In the exhaust...

 

Welding on a sensitive electronic sensor is a no no.

 

This happened to my truck. I removed the pipe and drilled out the stud and ran a bolt through the pipe so the threads where on the outside. I installed the sensor before I reinstalled it. You won't be able to remove the sensor with the pipe inplace anymore, but if you buy a quality product, then you should be good to go for a while anyway.

 

x2 drill out the stud and tap for a bolt. There is plenty of metal and depth there.

 

Go back to # 10 post, and read it

 

he says nothing about exhausts there. Looked to me hes replying to the posts before where op had an intake leak.

edit: after i reads it it sounds right saucy. il change that