O2 sensor locations
O2 sensor locations Hey all-
Where is the best place to put an o2 sensor on a turbo setup for a wideband?
Do you still use standard o2 sensors in air flow when running and if so where do you put them, especially if you only have a single turbo setup (one bank) and just a downpipe?
Where is the best place to put an o2 sensor on a turbo setup for a wideband?
Do you still use standard o2 sensors in air flow when running and if so where do you put them, especially if you only have a single turbo setup (one bank) and just a downpipe?
Haha I should just ask you directly Joe, you answer my questions all the time, thanks! What about the standard non wideband 02 sensor(s) after it's tuned for running? Same place? Or do I just leave my wideband there and let the pcm use that one,
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Joined: Mar 2014
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From: Ohio
The stock PCM won't use the wideband.
With that being said, you can run open loop speed density and not use O2 sensors at all, just a wideband.
The main purpose of the stock O2 sensors is to adjust fuel trims duing idle/cruise to run as close to Stoich as possible. With a little more effort, you can delete the O2 sensors and spend more time tuning the VE table to make sure that the air/fuel ratio is where it needs to be while idling and cruising. Lots of us don't run factory O2 sensors on our turbo setups. Basically all aftermarket ECUs don't use them, they will tune from a wideband.
With that being said, you can run open loop speed density and not use O2 sensors at all, just a wideband.
The main purpose of the stock O2 sensors is to adjust fuel trims duing idle/cruise to run as close to Stoich as possible. With a little more effort, you can delete the O2 sensors and spend more time tuning the VE table to make sure that the air/fuel ratio is where it needs to be while idling and cruising. Lots of us don't run factory O2 sensors on our turbo setups. Basically all aftermarket ECUs don't use them, they will tune from a wideband.
Thanks for your reply! I can't pm you but found one of ur earlier posts below- can I use the truck rails or boost ref regulator off the truck engine on the LS1 intake and rails I bought somehow? I am also in Ohio btw!
The vette regulator with fittings runs $60 plus shipping from Speedway. 20 feet of pushlok hose and 2 hose ends is $50 shipped. In the long run, it actually ends up being cheaper to run a full length return.
The stock rail mounted truck regulator also does a better job at actually being a regulator than the vette regulator does. It is vacuum referenced (and boost referenced) and can handle more flow before causing problems. A single Walbro 400 pump is too much for a vette regulator, whereas the stock truck regulator has been pushed to almost 1000 flywheel HP.
The vette regulator with fittings runs $60 plus shipping from Speedway. 20 feet of pushlok hose and 2 hose ends is $50 shipped. In the long run, it actually ends up being cheaper to run a full length return.
The stock rail mounted truck regulator also does a better job at actually being a regulator than the vette regulator does. It is vacuum referenced (and boost referenced) and can handle more flow before causing problems. A single Walbro 400 pump is too much for a vette regulator, whereas the stock truck regulator has been pushed to almost 1000 flywheel HP.
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Joined: Mar 2014
Posts: 7,192
Likes: 109
From: Ohio
Yeah I've been slapped on the wrist by an admin, so I can't send/receive PMs lol.
Maybe one day he will be nice and feel as if I've served my time and let me off the hook.
Technically, you can use truck rails, but the crossover tube will sit way above the intake.
If you have hood clearance, its better to use a truck intake anyway, they make more power/torque.
Maybe one day he will be nice and feel as if I've served my time and let me off the hook.
Technically, you can use truck rails, but the crossover tube will sit way above the intake.
If you have hood clearance, its better to use a truck intake anyway, they make more power/torque.
