164 Cold Start Sensor ?

[Genyee@xxxxxxx]

I am confused.

I would think the sensor on Cat is called oxygen sensor not cold start sensor.
There is a Motronic temperature sensor close to Thermostat housing,  this 
is also next to temperature sensor for coolant temp. gauge.  When Motronic 
temp sensor is bad, car cannot re-start when hot, must wait until 
engine is cold.

Motronic sensor only takes minutes to replace,  you need a new brass gasket
to make good seal,  The oxygen sensor can take hours or even more if exhaust 
bolts are rusted.   I put new stainless nuts there with anti-sieze compound to
avoid next frustration.

Karl 

>> 
>>  I am in need of replacing my cold start sensor in my 1991 164L is it as
>> simple as screwing a new one in, for it seems that way?
>> 

>
>ABSOTIVELY!!!!--after you have disassembled the front of the Cat from the 
>down pipes, lowered it so you can reach the old one, gotten a BEEG channel
>lock or so to remove it, undone the wire from under the hood, and 
>reversed the procedure, using a box end wrench that somehow you can get 
>onto the sensor nut that is shrouded by much of the Cat front pipe---but 
>it's not THAT hard, just frustrating.
>

------------------------------