More than likely a sensor is bad. Do you have a check engine light?
Could be a TPS, coolant temp, O2 or MAP/MAF sensor.
The best way to find out is to have the ECM scanned to see what values these sensors are putting out.
You should get it fixed because a rich exhaust will burn the CAT up in short order.
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Thursday, October 18th, 2007 AT 6:28 AM