$200! Ouch. But it's important to get it running after all the delays.

Funny, www.rockauto.com lists for the F23A4:

1.DENSO Part # 2349025 FRONT; w/ Eng. Code F23A4 {OE-TYPE OXYGEN SENSOR
#36531PAAL21} $91.79

2. BOSCH Part # 13493 Interval=100000 {Oxygen Sensor - OE Type Before
Catalyst} $104.79.

(The Bosch 15733 universal I mentioned in an earlier post is only for
downstream in the F23A4, and OK for upstream too only in F23A1).

I think you might have gotten sensors for the LEV (F23A1) and not the
ULEV (F23A4). Just curious, can you provide the part numbers for the
sensors you got? Thanks.


Nasty wrote:
> To review:
>
> The front O2 sensor went out. A multi-fit sensor that was listed for my car
> didn't work. A Bosch sensor new from Advance Auto Parts didn't work
>
> I bought a new one (Densco) from Honda this morning, $200.00 and change with
> tax. So far no CEL and no codes, either hard or pending.
>
> Maybe it's true that the F23A4 will only accept the Densco. Time will tell.
>
> --
> Pull my chain to reply.