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Subject:Re: Another O2 sensor querry -- heater element elementals
From:David Beierl
Date:Mon, 10 Jun 2002 19:13:02 -0400
At 07:01 PM 6/10/2002, Marshall wrote:
>Moreover, the 1.9 litre engine runs open loop for the first five minutes or
>so.
>
>By that time, the unheated O2 sensor would have been warmed up - so it's
>pointless to heat the sensor - it'd just be wasted electrons.

It runs open loop until it sees that the lambda sensor is working (because
it's overpowering the bias voltage that the ECU puts on the sensor line) --
the heater would make it start working faster.

d

--
David Beierl - Providence, RI
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'84 Westy "Dutiful Passage"
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