## Frequent Vehicle Error Codes

### P0420 Catalytic Converter Issue

– Typical Sources:

Exhaust leaks [1]

– Suggested Repairs:

Replace catalytic converter https://carautorepair.site/

### P0171 System Too Lean

– Likely Problems:

Faulty MAF sensor

– Troubleshooting Process:

Inspect injectors [1][7]

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## Car Maintenance Terms

### Skid Prevention Technology

– Function: Enables safe braking [7]

### Vehicle Computer System

– Responsibility: Manages fuel injection [7]

### Drivetrain Components

– Contains: Transmission [7]

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## Repair Process Steps

1. **Problem Identification**:

Perform visual inspection

2. **System Verification**:

Measure resistance

3. **Component Installation**:

Clear error codes

4. **System Validation**:

Confirm warning light reset

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## Essential Tools

| **Tool Type** | **Examples** | **Purpose** |

|—|—|—|

| Diagnostic Scanner | BlueDriver | Live data streaming |

| Physical Equipment | Smoke machine | Component repair |

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## Repair Documentation Sources

### Mechanical Information System

– Capabilities:

Component locations [8]

Technical illustrations

### Digital Assistants

– Vehicle Service App:

Component testing guides [5]

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## Affordable Maintenance Advice

– Regular maintenance avoids costly repairs

– Understand DTC meanings to prevent mechanic overselling

– Install quality alternatives when OEM prices prohibitive [7]