10-04-2019, 10:13 PM
|
#16
|
Member
|
|
Join Date: Oct 2013
Location: Texas
Posts: 450
|
|
Member
Join Date: Oct 2013
Location: Texas
Posts: 450
|
Quote:
Originally Posted by fulltimervexplorer
What are you currently using to trick the 02 sensors? I was told by Blackout when i talked to him earlier that they dont make a plug and play for our vehicle hence why its not listed as a truck thats compatible. Why not use the J style o2 spacers?
|
IM pretty sure I still have my catalytic converters. Do you ?
__________________
2007 LIMITED 4WD V8
Salsa Red Pearl
|
|
Reply With Quote
|
10-05-2019, 08:53 AM
|
#17
|
Member
|
|
Join Date: Aug 2006
Location: Natchitoches, LA
Posts: 207
|
|
Member
Join Date: Aug 2006
Location: Natchitoches, LA
Posts: 207
|
[QUOTE=sr3tlaw;3366301]Thank goodness I found this thread. Especially since it's the famous
@ blackoutt
Doug Thoroughly Short Headers installed, think we bought them from the same group buy a while back actually. I'm running the URD Rear O2 Simulator, 2UZ-FE V8, 2005-2006, Dual Channel (O2 Sim Type E) = $149.00 that was on backorder for a while. Here is a link to the plug and play that works with our 2UZ-FE 4.7 V8
Just recently, like, RIGHT before INSPECTION too some codes were thrown - P0172 and P0175. I have the
@ slyfox75
Secondary Air Bypass Installed a couple years ago and the instructions mention to tamper with the wiring that goes into the MAF sensor. Could the included relay he provided go bad? Idk, just thoughts
Are these related? Maybe the URD Simulator took a dump and needs to be replaced; or the relay included in
@ slyfox75
End of Quote
@ sr3tlaw
,
I'll be glad to assist to help troubleshoot. I've never heard of a bypass relay failing in the field but everything is possible. It potentially can fail open or closed.(I would think closed would be most probable). If stuck closed, its as if you have no relay/bypass and correct ambient air temp would be sent to ECU. If stuck closed.....it would send a very low ambient air temp to ECU....which maybe could get you a rich code. We can test this with multimeter, or you can unscrew one red connector and hook it back to factory wire(remove bypass from circuit and make like factory) to see if that changes anything. I also happen to have a MAF sensor I can send you to use for testing if you'd like, just PM me. Also Techstream should show your air temp if you have it(that's probably easiest way to ensure its right).
|
|
Reply With Quote
|
10-05-2019, 10:58 AM
|
#18
|
|
Senior Member
|
|
Join Date: Dec 2014
Location: Southern IN
Posts: 1,545
|
|
Senior Member
Join Date: Dec 2014
Location: Southern IN
Posts: 1,545
|
Quote:
Originally Posted by sr3tlaw
Thank goodness I found this thread. Especially since it's the famous
@ blackoutt
Doug Thoroughly Short Headers installed, think we bought them from the same group buy a while back actually. I'm running the URD Rear O2 Simulator, 2UZ-FE V8, 2005-2006, Dual Channel (O2 Sim Type E) = $149.00 that was on backorder for a while. Here is a link to the plug and play that works with our 2UZ-FE 4.7 V8
Just recently, like, RIGHT before INSPECTION too some codes were thrown - P0172 and P0175. I have the
@ slyfox75
Secondary Air Bypass Installed a couple years ago and the instructions mention to tamper with the wiring that goes into the MAF sensor. Could the included relay he provided go bad? Idk, just thoughts
Are these related? Maybe the URD Simulator took a dump and needs to be replaced; or the relay included in
@ slyfox75
Already replaced the MAF sensor with OEM Toyota a few months back and that fixed the problem at the time.
@ Blackout
How can I get yall some more diagnostic information like those shown in the graph titled "Emissions Readiness s/DTC"
God, I love this site
|
Alright, lets look at this from a logical perspective. IF the slyfox bypass is installed correctly the only thing it will mess with is intake air temperature, therefore the bypass failing will not cause a MAF error and rich bank 1 and bank 2 faults (172, 175) without also causing an IAT fault. I've had my slyfox wiring come loose once after checking air filter, it caused an IAT fault, I fixed the wiring and it was resolved. I agree with slyfox that I don't think it's the bypass relay, they are quite simple and robust systems.
Now onto the simulator part.
You said you have the shorty headers, so do you have catalysts welded to them or straight pipes?
If you have catalysts welded to the shorty headers then no need for simulator unless you're logging p0430 and/or p0420 faults but not likely. Removed the simulator. Still logging faults? If yes then you have other issues such as an exhaust leak before the front O2 sensors, so maybe a gasket leak or bad install job of the headers? Or could also be a vacuum leak elsewhere, these usually flag some other faults as well though too.
If you have empty piping welded between the shorty headers and the y pipes then you need some sort of trickery on the REAR or sensors to prevent p0420 and/or p0430 faults. I was told by URD that the plug n play didn't work for our vehicles but I'm also assuming you have cats and don't need it anyway. It does not appear to be causing the issue because the faults that will log if it goes bad or is out of adjustment are the catalyst inefficiency p0420 and p0430 or REAR O2 sensor stuck high/stuck low, or slow switching. The faults you are logging are related to the FRONT or UPSTREAM O2 sensors. Which brings me back to.....do NOT install any spacers or simulators on the FRONT O2 sensors. This could very well be causing your issue. I know that DT and Jason B have been slinging misinformation about this but trust me those upstream sensors are seeing the correct exhaust stream just as factory without needed to be tricked. Any trickery of the front sensors will cause rich running p0172 p0175, poor fuel economy, and possible engine damage if ran long term. Send us some pics of where your upstream O2 sensors are mounted into your shorty headers and we should be able to resolve this question quickly.
|
|
Reply With Quote
|
07-30-2020, 04:22 PM
|
#19
|
|
Member
|
|
Join Date: Nov 2014
Location: Austin, TX
Posts: 618
|
|
Member
Join Date: Nov 2014
Location: Austin, TX
Posts: 618
|
Does URD make a PnP kit for us? I found an old link, but I can't find a current listing for the 2UZ.
Underdog Racing Development
__________________
2006 4Runner Sport Edition V8 4WD
|
|
Reply With Quote
|
09-02-2021, 01:27 PM
|
#20
|
Member
|
|
Join Date: Oct 2013
Location: Texas
Posts: 450
|
|
Member
Join Date: Oct 2013
Location: Texas
Posts: 450
|
@ blackoutt
@ Drift Monkey
Swear this 0420 code is a yearly occurrence and only happens right before registration.
I'm running the OLD URD Rear O2 Simulator, 2UZ-FE V8, 2005-2006, Dual Channel (O2 Sim Type E) that was on backorder for a while. The same link posted by
@ Drift Monkey
- thanks for that by the way. It was installed February 2016 when the headers were put in.
After desperation settled in; reached out to URD asking for guidance. Come to find out, there is a newer "Universal Simulator" they sell. But now I cant find it on their site! Below is correspondence from URD last year on the matter.
Quote:
[email protected]
Jun 8, 2021, 12:20 PM
Over the years we have found that the 4.7L trucks need to be custom adjusted to keep the lights off on that platform reliably. So, we have moved to using the UNIVERSAL version of our sim for those applications so they can be custom adjusted. We are seeing great luck with that approach.
|
Also found this as a potential solution. Not sure what a mini cat is or if it could possibly replace the simulator altogether. Tagging
@ duffdog
for this
__________________
2007 LIMITED 4WD V8
Salsa Red Pearl
|
|
Reply With Quote
|
09-21-2021, 01:41 PM
|
#21
|
Member
|
|
Join Date: Mar 2015
Location: Sacramento CA
Posts: 683
|
|
Member
Join Date: Mar 2015
Location: Sacramento CA
Posts: 683
|
Quote:
Originally Posted by sr3tlaw
@ blackoutt
@ Drift Monkey
Swear this 0420 code is a yearly occurrence and only happens right before registration.
I'm running the OLD URD Rear O2 Simulator, 2UZ-FE V8, 2005-2006, Dual Channel (O2 Sim Type E) that was on backorder for a while. The same link posted by
@ Drift Monkey
- thanks for that by the way. It was installed February 2016 when the headers were put in.
After desperation settled in; reached out to URD asking for guidance. Come to find out, there is a newer "Universal Simulator" they sell. But now I cant find it on their site! Below is correspondence from URD last year on the matter.
Also found this as a potential solution. Not sure what a mini cat is or if it could possibly replace the simulator altogether. Tagging
@ duffdog
for this
|
I no longer manufacture the mini-cat. Too many people were using it inappropriately and I no longer wish to get complaints about how it doesn't work with blown engines, bad exhaust installs, etc. The original function was for passing smog in CA where there is no other possible solution to get your truck smogged. Other uses are not recommended for the mini-cat.
__________________
2005 Blue SR5 v8
3" suspension lift, 1" body lift, 315's, rear Elocker, on-board air system, slider air tanks, full skid plates, front Demello bumper, rear HMF plate/tube bumper, rear 9000lb hidden winch, front 10000lb winch, dual electric fans (in cab adjustable temp), rock lights, 25W LED projector lights.
|
|
Reply With Quote
|
09-21-2021, 06:44 PM
|
#22
|
Member
|
|
Join Date: Oct 2013
Location: Texas
Posts: 450
|
|
Member
Join Date: Oct 2013
Location: Texas
Posts: 450
|
Quote:
Originally Posted by duffdog
I no longer manufacture the mini-cat. Too many people were using it inappropriately and I no longer wish to get complaints about how it doesn't work with blown engines, bad exhaust installs, etc. The original function was for passing smog in CA where there is no other possible solution to get your truck smogged. Other uses are not recommended for the mini-cat.
|
Wow that's a shame. I just want to pass inspection..in Texas lol.
I'll have to keep digging for a solution to this 0420 code
__________________
2007 LIMITED 4WD V8
Salsa Red Pearl
|
|
Reply With Quote
|
10-04-2021, 03:21 PM
|
#23
|
|
Member
|
|
Join Date: Dec 2013
Location: WI
Posts: 230
|
|
Member
Join Date: Dec 2013
Location: WI
Posts: 230
|
I am now in need of an O2 sensor for my 4Runner and I can't locate one on the URD website. I wrote them to see if they still carry it but don't advertise it. I'm suspecting that the EPA crackdowns on emissions has forced a lot of companies to stop selling products like the O2 sensor simulators. I will update the post with any response from URD.
I did have the defouler and that worked for years but it rusted thru and the O2 sensor was just dangling under my truck. Half the defouler is still threaded into the bung and Given the orientation of the bung, I can't get a drill up there to remove the rest of the defouler. If I can't get a simulator I guess I'll have to take it into an exhaust shop to get a new O2 bung welded in.
__________________
2006 Toyota 4Runner, SR5 Sport package, 4.7L V8, 4WD
Mods - HCF delete, fog light mod, Gibson stainless catback, K&N air filter
|
|
Reply With Quote
|
10-05-2021, 03:57 PM
|
#24
|
Member
|
|
Join Date: Oct 2013
Location: Texas
Posts: 450
|
|
Member
Join Date: Oct 2013
Location: Texas
Posts: 450
|
Quote:
Originally Posted by black4vcobra
I am now in need of an O2 sensor for my 4Runner and I can't locate one on the URD website. I wrote them to see if they still carry it but don't advertise it. I'm suspecting that the EPA crackdowns on emissions has forced a lot of companies to stop selling products like the O2 sensor simulators. I will update the post with any response from URD.
I did have the defouler and that worked for years but it rusted thru and the O2 sensor was just dangling under my truck. Half the defouler is still threaded into the bung and Given the orientation of the bung, I can't get a drill up there to remove the rest of the defouler. If I can't get a simulator I guess I'll have to take it into an exhaust shop to get a new O2 bung welded in.
|
@ black4vcobra
I'm really glad that last post I did got some traction. Thanks for your reply.
If it's not too much trouble, would you mind collaborating a bit on trying to get this nuisance taken care of? I do have relevant information from you RD dating back when I first got my headers installed and then another correspondence a few months back when the 0420 started throwing again sporadically. What's really funny is that while I know all of these shops can get in huge huge trouble for emission stuff and whatnot I just have a real strong belief that the nerds like us driving the Toyota 4Runners aren't really looking to pollute and **** up the environment we just want to explore LMAO
Can you shoot me a PM or an email to further discuss I'll post my findings on this thread once we get something concrete.
__________________
2007 LIMITED 4WD V8
Salsa Red Pearl
|
|
Reply With Quote
|
10-06-2021, 10:04 AM
|
#25
|
|
Member
|
|
Join Date: Dec 2013
Location: WI
Posts: 230
|
|
Member
Join Date: Dec 2013
Location: WI
Posts: 230
|
Quote:
Originally Posted by sr3tlaw
@ black4vcobra
I'm really glad that last post I did got some traction. Thanks for your reply.
If it's not too much trouble, would you mind collaborating a bit on trying to get this nuisance taken care of? I do have relevant information from you RD dating back when I first got my headers installed and then another correspondence a few months back when the 0420 started throwing again sporadically. What's really funny is that while I know all of these shops can get in huge huge trouble for emission stuff and whatnot I just have a real strong belief that the nerds like us driving the Toyota 4Runners aren't really looking to pollute and **** up the environment we just want to explore LMAO
Can you shoot me a PM or an email to further discuss I'll post my findings on this thread once we get something concrete.
|
Hey, I tried to send a PM but not sure it went thru. I did hear back from URD as well but not what I wanted to hear.
I'll check in a bit to see if the message went through.
__________________
2006 Toyota 4Runner, SR5 Sport package, 4.7L V8, 4WD
Mods - HCF delete, fog light mod, Gibson stainless catback, K&N air filter
|
|
Reply With Quote
|
10-06-2021, 10:10 AM
|
#26
|
Member
|
|
Join Date: Dec 2018
Location: Colorado
Posts: 374
|
|
Member
Join Date: Dec 2018
Location: Colorado
Posts: 374
|
Quote:
Originally Posted by black4vcobra
Hey, I tried to send a PM but not sure it went thru. I did hear back from URD as well but not what I wanted to hear.
I'll check in a bit to see if the message went through.
|
What did URD say?
|
|
Reply With Quote
|
10-06-2021, 10:13 AM
|
#27
|
|
Member
|
|
Join Date: Dec 2013
Location: WI
Posts: 230
|
|
Member
Join Date: Dec 2013
Location: WI
Posts: 230
|
Quote:
Originally Posted by awhitney1
What did URD say?
|
To paraphrase, the E-P-A are a bunch of bullies to small businesses so URD does not have such a product.
__________________
2006 Toyota 4Runner, SR5 Sport package, 4.7L V8, 4WD
Mods - HCF delete, fog light mod, Gibson stainless catback, K&N air filter
|
|
Reply With Quote
|
05-23-2022, 10:28 PM
|
#28
|
Member
|
|
Join Date: Oct 2013
Location: Texas
Posts: 450
|
|
Member
Join Date: Oct 2013
Location: Texas
Posts: 450
|
@ blackoutt
@ black4vcobra
@ duffdog
@ Drift Monkey
@ slyfox75
Are you still around? Resurrecting an old thread here, still having this issue to date (2022-05-23) and want to reassess.
Hope all is well!
Craig Walters
__________________
2007 LIMITED 4WD V8
Salsa Red Pearl
|
|
Reply With Quote
|
05-23-2022, 11:11 PM
|
#29
|
Member
|
|
Join Date: Aug 2006
Location: Natchitoches, LA
Posts: 207
|
|
Member
Join Date: Aug 2006
Location: Natchitoches, LA
Posts: 207
|
I’m alive
__________________
2005 SR5 V8 4x4. Shrockworks Sliders, 4th gen Limited Wheels, Falken Wildpeak ATW3, Slyfox75 Bypass of course , Bilstein 5100s w Dobinson's Coils(314 & 505)
Slyfox75 AIP/SAIS bypass kit. Bypass = $49 Stainless Blockoff Plates $28(pair) email to jeffcolemaps at gmail for more info or questions. -jeff
|
|
Reply With Quote
|
05-27-2022, 02:43 PM
|
#30
|
Member
|
|
Join Date: Mar 2015
Location: Sacramento CA
Posts: 683
|
|
Member
Join Date: Mar 2015
Location: Sacramento CA
Posts: 683
|
Quote:
Originally Posted by sr3tlaw
|
I haven't logged in to this site in a while. What I find is possibly the best and cheapest solution for the P0420 and P0430 codes is to take one of these:
Robot or human?
Put it into a lathe to make the hex part a circle, Drill out the exhaust factory Bung, slip this thing inside the exhaust so that it appears like a factory sensor bung, find a skilled welder to Tig-Braze the thing into the exhaust and replace your existing rear o2 sensors. Now, you have a replaceable sensor that looks like a factory bung and the braze can be melted off if you want to install something else. Also, you did not have to pay me $100/hr to manually make these stupid things on a lathe.
__________________
2005 Blue SR5 v8
3" suspension lift, 1" body lift, 315's, rear Elocker, on-board air system, slider air tanks, full skid plates, front Demello bumper, rear HMF plate/tube bumper, rear 9000lb hidden winch, front 10000lb winch, dual electric fans (in cab adjustable temp), rock lights, 25W LED projector lights.
|
|
Reply With Quote
|
Thread Tools |
|
Display Modes |
Rate This Thread |
Linear Mode
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is On
|
|
|
|