[Shotimes] oxygen sensor

[clubairth@bellsouth.net]

Jason:
 Just a few corrections:
All Ford HEGO's are 4 wire units.
All gen1/Gen2 SHO's have the O2 sensors ahead of the catalytic converters.
.
.



> Bosch sensors for the SHO all have the same part number because they use
> a generic length of wire coming off of them, and the part number you get
> is more than likely enough for both sides. Go to any AAP and I can
> guarantee that the part numbers in their database are correct for the 95
> ATX. Different part numbers for the most part only mean different
> lengths of wire; O2 sensors themselves are all the same (in the 'heated'
> category, which ours are in, they're a 2-wire plug). There are 2 of them
> in the car, one for each bank of cylinders. The front one is easy to
> find, just trace the exhaust pipe up around the tranny and there it is!
> It's a bitch to get off unless you have a crow's foot wrench (just ask
> for an O2 sensor wrench). The rear one is harder, it's on the other side
> of the tranny and waay up there. If you take the plastic half-box thing
> off the firewall on the top end you can reach it from above. FYI, 1-wire
> = unheated (old type), 2-wire = heated (ours & most others), 4-wire =
> Wide Band (expensive).
> 
> If you have any more questions, just email back and I (and others) would
> be more than happy to enlighten you :).
> 
> Jason
> 
> p.s. [gen1/2]SHOs don't have pre-cat sensors, just two post-cats. I
> would recommend the Boschs. They seem to last longer.

> 
> I need to replace the post-cat O2 sensor on my '95 ATX.  I'm a little
> confused as to which sensor to purchase.  If I were to buy the OEM
> sensor, the front and rear sensors have two different part numbers.
> However, if I were to buy the Bosch sensor, the front and rear sensors
> appear to be the same part number.  Looking at the descriptions for the
> Bosch sensors on various parts websites, it always says "2 sensors
> required."  Can someone confirm that the part numbers for the Bosch
> sensors are the same for both front and rear locations?  Thanks for the
> help!
> 
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