2 bad oxygen sensors affect performance?

TPrelude-370z · 09-14-2011, 06:24 AM

My question is does the computer open up a different set map at WOT and go into open loop without making corrections using the o2 sensors but the maf sensor instead?

When people get the check engine light from installing test pipes and high flow cats, I am told it does not affect performance. Fuel economy sure, but will the computer accept the modification and run properly at WOT?

By the way, please answer in simple terms as I do not understand much of the information mentioned about the o2 sensors in previous posts. It seems like you are giving me answers based of a manual that does not really account for situations like this. Plus it doesn't really tell me anything to know which sensor is which and does what, if it operates differently with the cel on.

I worked on attack helicopters in the military and from experience, nothing relating to fixing or troubleshooting the birds was in the book. It was all trial and error, and learned by test flights and seeing results. I figured since so many people have the cel when the install test pipes, there would be plenty of info regarding whether or not the car will perform properly with the cel on.

There is just a vague answer of no it does not affect performance with no real basis or mechanical proof to back it up.

The shop I am going to is fantastic and took full responsibility for replacing the sensors. The name is Genesis Racing Development. The guys spent hours working on the demon bolt only to find out both sensors were destroyed during the melee. This is an extremely stand up shop as most would have given me the car back and said its fine. They wouldn't even let me leave before test driving it for safety, and ordering the new sensors.

I am very grateful to have found a great shop in Chicago

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09-14-2011, 06:24 AM	#6 (permalink)
TPrelude-370z Base Member Join Date: Jul 2011 Location: Chicago, Il Posts: 243 Drives: 09-Tour-Sport-MB-6MT Rep Power: 15	My question is does the computer open up a different set map at WOT and go into open loop without making corrections using the o2 sensors but the maf sensor instead? When people get the check engine light from installing test pipes and high flow cats, I am told it does not affect performance. Fuel economy sure, but will the computer accept the modification and run properly at WOT? By the way, please answer in simple terms as I do not understand much of the information mentioned about the o2 sensors in previous posts. It seems like you are giving me answers based of a manual that does not really account for situations like this. Plus it doesn't really tell me anything to know which sensor is which and does what, if it operates differently with the cel on. I worked on attack helicopters in the military and from experience, nothing relating to fixing or troubleshooting the birds was in the book. It was all trial and error, and learned by test flights and seeing results. I figured since so many people have the cel when the install test pipes, there would be plenty of info regarding whether or not the car will perform properly with the cel on. There is just a vague answer of no it does not affect performance with no real basis or mechanical proof to back it up. The shop I am going to is fantastic and took full responsibility for replacing the sensors. The name is Genesis Racing Development. The guys spent hours working on the demon bolt only to find out both sensors were destroyed during the melee. This is an extremely stand up shop as most would have given me the car back and said its fine. They wouldn't even let me leave before test driving it for safety, and ordering the new sensors. I am very grateful to have found a great shop in Chicago