Innovate Motorsports MTX-L - Manual (Page 6)

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2.3 Sensor Placement
Optimum bung placement will vary from application to application, but using
the guideline below will ensure the longest sensor life with the most accurate
readings. Using a bung is the preferred method for mounting the oxygen
sensor in all applications.
outlet (after the collector), or 24 inches after the turbocharger if so
equipped. The bung should be welded before the X or H pipe if so
equipped.
o’clock and 3:00 o’clock position. Welding the bung in the lower
section of the exhaust pipe can result in sensor damage caused by
condensation making contact with the sensor’s internal heating
element.
fully threaded, the sensor’s tip will sit flush with the exhaust pipe, this
does not adversely effect the readings.
Welding the bung after the catalytic converter will skew the readings
toward lean. The skew in readings will vary with engine load and the
efficiency of the catalytic converter.
There are many other factors that dictate the sensor’s lifespan so it is
impossible to predict it’s total longevity.
cause false lean readings at light engine loads. Typically, once the
engine is under load and the exhaust gas volume increases, you will
see accurate readings.
to a powered, functional MTX-L (no error codes) whenever the
engine is running. An un-powered sensor will be damaged in a short
period of time when exposed to exhaust gas.
the engine as normal. Allowing the sensor to pre-warm before
starting the engine will increase the possibility of damaging the
sensor from shock-cooling.