Welcome to Cruzen ownership.
The P0420 was supposed to be addressed by an emissions recall/ECU reflash, if that was never done to yours.
The P0420 was supposed to be addressed by an emissions recall/ECU reflash, if that was never done to yours.
I believe most actually saw an increase in MPG, but I didn't see that yours was a manual. They were never offered an update/recall.The last time my car was at a dealership (save for one visit for tires) was in summer of 2014, and it hasn't had the programming update to my knowledge. I seem to recall reading that owners saw a hit in fuel economy after the update - am I wrong?
Maybe, although the cat code suggests otherwise. They over-fueled at medium to heavy throttle and the unburned fuel would slowly reduce the effectiveness of the cat converters. The re-flash adjusted the sensitivity of the rear O2 sensor monitoring the cat and reduced the unnecessary overfueling.Oh well. Does that mean the problem didn't apply to stick shifts? What was the issue, anyway?