wideband o2 location
Thread Starter
Teching In
Joined: Sep 2016
Posts: 20
Likes: 0
wideband o2 location can i run my wideband o2 sensor in the regular o2 bung just below the manifolds? i was originally going to mount in in the h pipe but the bit of reading ive been doing is leading me to believe thats not the best idea.
really trying to avoid buying 2 wide bands right now.
another tip ive been given is that the bank on the drivers side (bank 1) usually runs slightly leaner on these engines (4.8) so i was thinking id put it there, in the original o2 sensor bung if it would fit of course. starting to order some parts now for the winter...
AEM wideband hooked up to hp tuners pro is what im looking at right now unless someone has a better suggestion for a wideband. i already have hp tuners but havent picked at it yet... waiting to install my standard tranny i just have to go pick it up and get at it.
i also have an appointment to get a h pipe installed on my true duals, if anyone thinks a wideband would be ok installed on a h pipe let me know and il call the muffler guy and tell him to weld in a bung while hes installing it.
really trying to avoid buying 2 wide bands right now.
another tip ive been given is that the bank on the drivers side (bank 1) usually runs slightly leaner on these engines (4.8) so i was thinking id put it there, in the original o2 sensor bung if it would fit of course. starting to order some parts now for the winter...
AEM wideband hooked up to hp tuners pro is what im looking at right now unless someone has a better suggestion for a wideband. i already have hp tuners but havent picked at it yet... waiting to install my standard tranny i just have to go pick it up and get at it.
i also have an appointment to get a h pipe installed on my true duals, if anyone thinks a wideband would be ok installed on a h pipe let me know and il call the muffler guy and tell him to weld in a bung while hes installing it.
Thread Starter
Teching In
Joined: Sep 2016
Posts: 20
Likes: 0
it has no y pipe or cats it is true dual exhaust with truck manifolds. guess i should mention its in a 1987 chevy c10 with a 2001 4.8 vortec. i am in the process of getting a h pipe installed near the transmission cross member, not sure how far that would be from the manifold flange but my guess would be around 2 feet.
is installing a wideband in a h pipe a viable option or no? if not, the 02 sensor bungs are a couple inches from the manifold flange
is installing a wideband in a h pipe a viable option or no? if not, the 02 sensor bungs are a couple inches from the manifold flange
Put it on the drivers side, after the flange. As far as widebands NTK/ ballenger motorsports have the best most accurate widebands available. AEM is good as well but sensors generally last a lot less time.
Trending Topics
I am using an Evo prosport wideband mounted in a BBK ORY which already has provisions, located about where they would have been post-cat. Another plus to the drivers side location is there is a rubber grommet under the driver seat that you can use to route the wiring of the wideband through.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo this is not advised as you need accurate readings and this far back you are not getting the most accurate, real time data. View it like fuel pressure, you want as close to the injector as possible and the same applies here just taken into consideration not getting too close to burn up the sensor.
Thread Starter
Teching In
Joined: Sep 2016
Posts: 20
Likes: 0
hmm.. perhaps il get the muffler man to weld me another bung for the wideband just a bit further downstream from the o2. i was hoping to use the o2 sensor bung but that might be a little bit too close to the exhaust manifold by the sound of things.
is an o2 bung you'd get from a muffler shop what a wideband will screw in or do they have a special bung?
is an o2 bung you'd get from a muffler shop what a wideband will screw in or do they have a special bung?
Launching!
Joined: Jan 2008
Posts: 225
Likes: 1
From: Fargo, ND
^^^^^That info is actually a little confusing....The AFR sensor should be located between 12” and 48” from the engine, upstream of any catalyst device if so equipped. The closer the sensor is to the engine, the more likely it will be overheated, possibly shortening its life. The further it is from the engine, the more likely condensed water will get into the sensor and thermally shock it, again possibly shortening its life. The sensor should be mounted at least ten exhaust diameters upstream of the exhaust exit (ex. for a 3” exhaust pipe, that is 30”). If the sensor is mounted between one and ten exhaust diameters from the exhaust exit, the AFR measured will be leaner than the actual AFR by as much as 2 AFR at low engine speeds (i.e. less than 3000 rpm).
So not too close or you'll fry it, not to far or it will get wet and fry.
They say mount it from 12" to 48". 12 sounds to close, 48 too far. Then they give an example of 30", almost three times farther than 12". They then say (using a 3" exhaust pipe as an example) that if it is mounted between 3" and 30" from your tail pipe exit you'll get a leaner measurement. So wouldn't anything sort of in the middle be fine, assuming no cats of course?
hmm.. perhaps il get the muffler man to weld me another bung for the wideband just a bit further downstream from the o2. i was hoping to use the o2 sensor bung but that might be a little bit too close to the exhaust manifold by the sound of things.
is an o2 bung you'd get from a muffler shop what a wideband will screw in or do they have a special bung?
is an o2 bung you'd get from a muffler shop what a wideband will screw in or do they have a special bung?
Thread Starter
Teching In
Joined: Sep 2016
Posts: 20
Likes: 0
thank you parks. this might sound stupid but when you have a wide band do you still keep regular o2's? vehicle has no emissions equipment. i was lead to believe the only purpose of the o2 was to add and reduce fuel in a manner then extends the life of the catylic converter. wouldnt tuning with a wideband result in no purpose for the o2 on my vehicle?
thank you parks. this might sound stupid but when you have a wide band do you still keep regular o2's? vehicle has no emissions equipment. i was lead to believe the only purpose of the o2 was to add and reduce fuel in a manner then extends the life of the catylic converter. wouldnt tuning with a wideband result in no purpose for the o2 on my vehicle?
Only way to delete your front oxygen sensors is with a speed density tune which is a set parameter with no adjustments, unless it's manual.
No, you need your front 02 sensors (pre cat) since your computer needs to knowto add or take fuel. A wideband is basically to make sure when your making adjustments in your tune your not leaning it out or making it to rich.
Only way to delete your front oxygen sensors is with a speed density tune which is a set parameter with no adjustments, unless it's manual.
Only way to delete your front oxygen sensors is with a speed density tune which is a set parameter with no adjustments, unless it's manual.