Lack of Power and/or Illumination of the Check Engine Light on Isuzu Trooper

A loss of power and/or illumination of the Check Engine Light with associated fault code P0420 may be noted. Our technicians tell us this is generally caused by a failed catalytic converter which will require replacement.

RepairPal Verified
Average mileage: 147,000 (147,000–147,000)
1 model year affected: 1997
2 people reported this problem
1 person shared problem details
Bank 1 Catalytic reduced efficiency. Replaced Catalytic Converter
Related Items:
While driving the light comes on but turns off when I come to a stop.
i have massive leak that has started above the alternator there is no oil in the coolant and no...
Truck all of a sudden turned off and is hard to start. Once it starts idle is rough and does n...
I can manually shift vehicle, but when in d feels like it its in 3rd or 4th gear. Under load, t...
My trooper is firing on only 3 cylinders. 1,3,5 will fire fine but 2,4,6 are not getting any po...

Related Content