### P0420 Catalytic Converter Issue
– Common Causes:
Exhaust leaks [1]
– Common Solutions:
Repair exhaust system https://carautorepair.site/
### P0171 System Too Lean
– Potential Issues:
Fuel delivery problems
– Troubleshooting Process:
Inspect injectors [1][7]
—
## Car Maintenance Terms
### Skid Prevention Technology
– Function: Prevents wheel lockup [7]
### ECM/ECU (Engine Control Module)
– Role: Monitors sensors [7]
### Powertrain Elements
– Includes: Drive axles [7]
—
## Repair Process Steps
1. **Problem Identification**:
Conduct road test
2. **System Verification**:
Measure resistance
3. **Defective Unit Swap**:
Clear error codes
4. **Post-Repair Verification**:
Ensure proper operation
—
## Necessary Equipment
| **Tool Type** | **Examples** | **Purpose** |
|—|—|—|
| Code Reader | Innova | Live data streaming |
| Physical Equipment | Multimeter | Component repair |
—
## Service Information References
### Mechanical Information System
– Capabilities:
Component locations [8]
Factory repair procedures
### Mobile Applications
– Vehicle Service App:
Component testing guides [5]
—
## Cost-Saving Tips
– Preventative service avoids costly repairs
– Understand DTC meanings to prevent mechanic overselling
– Install quality alternatives when budget constrained [7]