"THIS BULLETIN PROVIDES INFORMATION RELATED TO THE ENGINE CONTROL MODULE (ECM) SOFTWARE UPDATE TO PREVENT AN INCREASE IN THE CATALYST TEMPERATURE WHICH MAY RESULT IN ILLUMINATION OF THE MALFUNCTION INDICATOR LIGHT WITH THE FOLLOWING DTC(S):
„H P0171 - SYSTEM TOO LEAN - BANK 1.
„H P0420 - CATALYTIC CONVERTER SYSTEM, BANK 1 - EFFICIENCY BELOW THRESHOLD.
IN RARE CASES, THERE CAN BE A REDUCTION IN ENGINE POWER IF THE CATALYST IS RESTRICTED."
