Understanding Your Failure Notice
Your emissions failure report includes:
- Reason for failure
- Diagnostic Trouble Codes (DTCs)
- Monitor status
- Retest and waiver information
Most Common Emissions Failure Reasons
1. Check Engine Light Illuminated (60-70% of failures)
Common causes:
- Loose gas cap: $0-20 fix
- Oxygen sensor failure: $150-400
- Catalytic converter: $400-2,500
- EVAP leak: $50-600
2. Incomplete OBD-II Monitors (20-25%)
Happens after battery replacement or code clearing. Solution: Drive 50-100 miles.
Step-by-Step: Passing After Failure
- Document Everything: Get complete failure report with DTCs
- Research the Problem: Look up codes, check for recalls
- Try Simple Fixes: Check gas cap, fuses, loose connections
- Get Professional Diagnosis: If simple fixes don't work
- Make Necessary Repairs: Prioritize emissions-related items
- Complete the Drive Cycle: 50-100 miles of varied driving
- Verify Readiness: Use scanner to check monitors before returning
- Return for Reinspection: Bring documentation
Retest Costs and Policies
- Free retest: At same station within 30 days if they did repairs
- Reduced fee: $15-25 at original station
- Full fee: $35-90 at different station or after 30 days
When to Consider an Emissions Waiver
If repairs are cost-prohibitive, you may qualify if you've spent at least $150 on emissions repairs.