» View Question
david

david 10/19/2010

1999 Oldsmobile Bravada Base 6 Cyl 4.30L

Engine

it has po420 code low voltage at bank 1 o2 sensor how do you fix this problem

2 Answers


HouseCallAuto

HouseCallAuto 10/19/2010

This code indicates a bad catalytic converter. (Catalyst System Low Efficiency Bank 1) It really has no other cause. Replace the cat, don't bother changing other parts first, it will not solve it.

Reply
0
david

david 11/16/2010

it was cadil converter

Reply
0

Answer this question

( characters left)

Follow Question

what's this?
advertisement
advertisement