Denso

[CB7CJ]

Hey guys i was just wondering is the Denso o2 sensor's as good as a NTK one? only reason I'm asking is my local auto parts stores only sell Bosch and i have heard that those don't work too well for our cars, so i have to order one and i wanna get the right one..

[SOHC-FTW]

Yes bosch is a hit or miss.NGK/NTK or denso is what is recommended.

[CB7CJ]

Okay that's what i thought, Thanks for the reply man

[deevergote]

Bosch is almost ALWAYS miss.

Yes, Denso and NTK/NGK are equally good, and will work properly (unless you get a faulty sensor, which happens on a rare occasion.)

[thepowderblue]

Our cars dont really use the 02 sensor. The do but its not to important so you dont have to worry if its super accurate.
I have ben running my se for like a month with out one. It still runs good and gets like 20mpg.

[SOHC-FTW]

Our cars dont really use the 02 sensor. The do but its not to important so you dont have to worry if its super accurate.
I have ben running my se for like a month with out one. It still runs good and gets like 20mpg.

Thats probably why your getting 20mpg.An yes the 02 can cause issues running wise and fuel mileage wise.

[thepowderblue]

Thats good. Thats also city. With the way I drive.

[deevergote]

Our cars dont really use the 02 sensor. The do but its not to important so you dont have to worry if its super accurate.
I have ben running my se for like a month with out one. It still runs good and gets like 20mpg.

Um... yes, they do.

There are two modes that the ECU operates in: open loop, and closed loop. Open loop is what you get when the car is warming up, or when the o2 sensor fails. The ECU runs the engine based on pre-set fuel tables. It's fueling blindly, and overfueling to ensure the engine doesn't run lean (especially important with the F22A, because it does not use a knock sensor... without a functional o2 sensor, the ECU would never know if the engine is running dangerously lean.)
Closed loop mode is what happens when the engine is warmed up, and begins to use o2 sensor feedback. This ensures optimal fueling.

Running without an o2 sensor can very quickly cause damage due to overly rich conditions. You can foul your spark plugs, leave gunky deposits on your valves, and destroy your catalytic converter. Kinda stupid, when the necessary part is only $40!

[1991redcoupe]

replacing the cat is way more expensive than an o2 sensor....I would get the o2 sensor soon Powderblue

[deevergote]

I'm waiting for the "I don't have a cat" response

People in areas that don't require emissions inspections don't seem to understand that by doing things like that, they're only adding to the reasons that their local government will start to require such things. Plus, it makes the car smell terrible, and sound just as bad.

[thepowderblue]

I understand why the ecu needs the o2 sensor. But if its not there the ecu gos into like a fail safe mode and runs it to a generic tune witch probably is not the best but our cars dont look at the o2 sensors like alot of new cars do.

[pedroalcala]

I understand why the ecu needs the o2 sensor. But if its not there the ecu gos into like a fail safe mode and runs it to a generic tune witch probably is not the best but our cars dont look at the o2 sensors like alot of new cars do.

It's very stupid to run without one. It does need it like every other car unless you tune and chip an ecu. I get 28 mpg hwy and city... And you can really mess up your motor if one is faulty or not installed.

[thepowderblue]

I bought a harness harness off another member and its not working with it. Its my second car anyway. I need to put a new harness in and it will fix it.

[deevergote]

It's very stupid to run without one. It does need it like every other car unless you tune and chip an ecu. I get 28 mpg hwy and city... And you can really mess up your motor if one is faulty or not installed.

Even then, it should be used. A tune that doesn't use the o2 sensor is incomplete. That sort of thing is usually only done by amateur hacks, or people with dedicated race cars that see consistent conditions. For daily driving in different weather, different areas (hills, etc...) and at different times of year (temperature), an o2 sensor should always be used.