This is a follow-up to the earlier thread that started out as Leaking PS
Fluid.
Again, this is apples to the '97 Dakota Sport 2WD|3.9L V6.
The O2 sensors arrived yesterday from oxygensensors.com (which turned out to
be Auto Medic Parts in CA). And they weren't Walker (as listed on the
website; they turned out to be Delphi (and made in America - how'd that
happen?). OK, so I approached it incrementally, first replacing the
UPstream O2 sensor and then taking a read w/ my ScanTool. Check Engine and
the P0132 DTC code persisted but, on the Sensor Data tab, the voltages for
this sensor (S1) returned to what I'd call "normal" (certainly no more
1000V, as still was associated w/ the DOWNstream sensor (S2)). The voltages
I saw were in ranges <1V.
So I then replaced the DOWNstream sensor and took another reading. Check
Engine and the P0132 DTC code persisted but, as w/ S1, the voltages for this
sensor (S2) returned to what I'd call "normal" (certainly no more 1000V;
generally <1V).
The Check Engine light and P012 persisted, however, so - presuming I'd
resolved the sensor problem - I gathered that the DTC doesn't get cleared
automatically by the PCM (which, if so, surprises me a bit). I therefore
surmised that I had to do that manually using the ScanTool software. Can I
get a confirmation on this point?
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