Quick stupid question. Does PNP run closed loop?
#1
Quick stupid question. Does PNP run closed loop?
I managed to screw up my WB O2 sensor while installing inconel studs on the turbo. Either the penetrating lube I used to get the old studs out killed it, or banging it against the tranny trying to get the DP off & on did... either way I need a new one.
In the mean time, does the PNP MS1E I have ever run in closed loop under normal (track) driving? Or to put it another way, is there any risk of driving the thing with a bad O2 sensor?
Thanks for putting up with my ignorance
me=>
In the mean time, does the PNP MS1E I have ever run in closed loop under normal (track) driving? Or to put it another way, is there any risk of driving the thing with a bad O2 sensor?
Thanks for putting up with my ignorance
me=>
#4
Boost Pope
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Basic Settings -> Exhaust Gas Settings, and
More Settings -> Lambda AFR Settings.
If you want to disable it, change "Authority" to 0 in the first menu.
Closed loop means it IS changing fuel based on AFR.
#6
Thanks for the help! let me make sure I have this right:
my exhaust gas controller authority is currently set to 5%, so it has been running in closed loop during part throttle. I can disable closed loop by setting the authority to 0, which means its going to run solely on the fuel tables which will obviously be less than optimal, but should be safe... right? (of course this depends on how safe the fuel tables are, and I'm going to ASSume they are ok)
my exhaust gas controller authority is currently set to 5%, so it has been running in closed loop during part throttle. I can disable closed loop by setting the authority to 0, which means its going to run solely on the fuel tables which will obviously be less than optimal, but should be safe... right? (of course this depends on how safe the fuel tables are, and I'm going to ASSume they are ok)
#8
BTW, gentlemen, is wideband really needed for daily operation? My tuning guy is telling me that i can run on two narrow band O2 sensors and he can tune the car by shoving a long probe up the short custom exhaust that I have.
Granted that, can I drive the car after that with just regular O2 sensors? What's the disadvantage to that?
Granted that, can I drive the car after that with just regular O2 sensors? What's the disadvantage to that?
#9
I'm (obviously) no expert, but I did see an option to run the closed loop off of a narrowband O2 sensor in megatune, so I'd bet you can. And of course, if you had well tuned part throttle fuel tables you could just run open loop with no O2 sensor at all.
BTW, I had a slightly intelligent moment and tried "resetting" my innovative WB 02 and it seems to have fixed it
BTW, I had a slightly intelligent moment and tried "resetting" my innovative WB 02 and it seems to have fixed it
Last edited by Handy Man; 07-06-2012 at 08:34 AM.
#10
BTW, gentlemen, is wideband really needed for daily operation? My tuning guy is telling me that i can run on two narrow band O2 sensors and he can tune the car by shoving a long probe up the short custom exhaust that I have.
Granted that, can I drive the car after that with just regular O2 sensors? What's the disadvantage to that?
Granted that, can I drive the car after that with just regular O2 sensors? What's the disadvantage to that?
Advantages of WBO2:
1. Autotune.
2. Even if you don't autotune, you can use Megalog Viewer and get a better fuel tune than your "tuning guy" could ever give you.
3. You can keep an eye on your AFRs in boost. A NBO2 does not output a usable signal at those AFRs. Injectors can clog after all. Would be a shame to blow an engine for something like that.
Other than these relatively significant advantages, there's no reason at all to run a WBO2.
#14
Boost Czar
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BTW, gentlemen, is wideband really needed for daily operation? My tuning guy is telling me that i can run on two narrow band O2 sensors and he can tune the car by shoving a long probe up the short custom exhaust that I have.
Granted that, can I drive the car after that with just regular O2 sensors? What's the disadvantage to that?
Granted that, can I drive the car after that with just regular O2 sensors? What's the disadvantage to that?
can he tune your carb too?