no o2 sensors or catalytic converter

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Dec 28, 2019
  #1  
need help please If anyoie can shed some light on this please ,
i have a 1998 honda civic vti sohc vtec
so I have no o2 sensors or catalytic converter on my car, im eventually going to install a turbo in it, I was just wondering if anyone knew anything about it
thanks

ive only installed a whale intake , some 4-2-1 epman headers and thats about it, theres also a o2 sensor bung on there but dont what for when there were no o2 sensors on the factory headers

any help would be much appreciated thank you
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Dec 28, 2019
  #2  
Re: no o2 sensors or catalytic converter
...not really the best idea to run no upstream o2 sensor, while stock.

This is your a/f sensor (air fuel).

Without it installed the engine runs rich. Which reduces power, and money in your pocket.

The reason people remove the stock a/f on boosted cars, is that they're running aftermarket tuning ecus, with a stand alone, high quality, wideband a/f sensor.

.......

As for the bung hole on your header

If its placed on a single runner, this is where you mount the OEM a/f, if you're running a dual a/f system (usually for a piggyback ecu)

The original bung hole, which is usually below the header collector, is where you run the high quality aftermarket a/f. This is so it can collect data from all four cylinders, regarding the air, fuel mix.
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