After driving the car several days/ hundreds of miles, I had the computer scanned.

There are no codes, but the sensor is not getting a reading from the 4 following sensors...

1)O2S (Both 02 sensors plugged in and connections good, no frayed or cut wires)

2)CAT (If this is the catalytic converter, I had no idea it had a sensor other than the o2's)

3)HTR (I'm assuming is the heater, but is working fine)

4)EVAP

So here are my following questions...

1) If there's a bad o2 sensor, wouldn't it set a code instead of the sensor not being picked up?

2) Could the bucking under deceleration be a symptom of a clogged catalytic converter, if not what are the symptoms of one?


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