So many of you might have been really smart when installing your long tube headers by putting your o2 sensor extenders on while the pipes were off. Second is you want it facing up not down.
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O2 sensor placement headers. Locate a position for the oxygen sensor. O2 sensor placement is critical for getting your engine to read the oxygen in the exhaust correctly and can directly impact the performance of your new efi installation. Ntk wideband oxygen sensor. Replacement ntk wideband oxygen sensor for c950 or holley efi. Within about a foot is fine. It is recommended that you have at least 2 to 3 feet of pipe after the sensor or it may not read accurately at light loads.
Its really to bad there is not a defined and well discussed formula for o2 placement change tuning from header installs as its probably one of the most common mods on all platforms. I would venture to say after messing with this for weeks now that probably most people running around with headers are probably in the same boat and have no idea. I drive a faleen v6 and have pace setter long tube headers with an. When installing an o2 sensor in a car that never had one or when replacing the exhaust system theres a couple things you have to remember. Im not that smart and found my self bashing my head against the wall after the build. The header collector makes a good location for mounting.
First let me tell you my car and the story. First is you want it as close to the exhaust manifold as possible so it reaches operating tempreture. If your vehicle has catalytic converters the oxygen sensor must be located between the engine and the catalytic converters. Proper placement of o2 sensor.
Gallery of O2 Sensor Placement Headers
