Engine Error
P0433
Heated Catalyst Efficiency Below Threshold (Bank 2)
Severity
Medium
Symptoms
Check engine light, sluggish acceleration, failed emissions
Common Causes
- Bad heated catalytic converter on Bank 2
- Exhaust leaks on Bank 2
- Contaminated O2 sensors
- Rich fuel mixture burning up the cat
How to Fix
- 1 Replace Bank 2 heated catalytic converter
- 2 Weld or replace leaking exhaust pipes
- 3 Replace Bank 2 O2 sensors
- 4 Fix rich running condition
Estimated Repair Cost
USD
$400
–
$2500
Catalytic converter: $500 - $2,500