Thread: o2 sensor

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if i wanted to put an o2 sensor in the exhaust of my bbc to tune it do i need 2 sensors since i have dual exhaust?

Are you planning on reading the O2 sensor via a ECM or
via one of the little hand held readers? Certainly having one in
each bank is more accurate.....but.

Some engine controllers have a single oxygen input, some
have two and some have four (pre and post cat).

Be sure to match your sensor choice with the ECM or reader
by buying the correct sensor (heated or not)

mike in tucson

i was planning on putting a gauge inside the car

an AFR gauge you mean, just run a windband on 1 of the pipes, and wire it in. you would otherwise need 2 gauges. but an AFR gauge is not nessasary unless you got a forced induction engine.