wideband o2 sensor on stock pcm
02-10-2004, 07:00 PM
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wideband o2 sensor on stock pcm Would it be possible to replace the stock O2 sensors w/ wideband ones? would they work w/ the stock wireing from trhe original harness? any other comments?
02-11-2004, 07:51 AM
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Yes you could disconnect an input line of similar quality, then hack the ecu code to use a targeted air fuel look up table. Easy? no, but it would separate the true ecu haxors from the map editors.
werd.
werd.
02-11-2004, 08:10 AM
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You need the controller box to keep them happy,
without the fine temperature control the output
is worthless. Some of the controller boxes produce
a 0V - 1V output which you could substitute for
(say) the rear O2s. Messing with the fronts is
not going to buy you anything I reckon, the PCM
"is what it is" and expects the dumb, crude,
switching behavior of the stockers. Since WOT
is open-loop anyway, high-performance driving
will still not comprehend any O2 inputs. You have
to explain it, upside, with the laptop.
without the fine temperature control the output
is worthless. Some of the controller boxes produce
a 0V - 1V output which you could substitute for
(say) the rear O2s. Messing with the fronts is
not going to buy you anything I reckon, the PCM
"is what it is" and expects the dumb, crude,
switching behavior of the stockers. Since WOT
is open-loop anyway, high-performance driving
will still not comprehend any O2 inputs. You have
to explain it, upside, with the laptop.
If you want a W/B go with a controller designed to support it, like a FAST controller.