02's and tuning
#3
To answer your question. No you do not. If your engine has a large cam or open exhaust 02 sensors will give you phoney readings anyway. SD you are not using them anyway unless you are closed loop.
#5
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Speed Density = Not using MAF
Closed loop = using O2
Open loop = not using O2
You can have combo's of the above like:
MAF + closed loop = factory config
MAF + open loop = using MAF but not O2
SD + closed loop = Not using MAF but using O2
SD + open loop = Not using MAF or O2
So I'll answer the original poster's question with a question....
Which setup are you using?
Ideally you'd want a wideband to tune a drag car since the factory O2's are pretty useless at WOT
Closed loop = using O2
Open loop = not using O2
You can have combo's of the above like:
MAF + closed loop = factory config
MAF + open loop = using MAF but not O2
SD + closed loop = Not using MAF but using O2
SD + open loop = Not using MAF or O2
So I'll answer the original poster's question with a question....
Which setup are you using?
Ideally you'd want a wideband to tune a drag car since the factory O2's are pretty useless at WOT