Summary of Reddit Comments on "Innova OBD Code Reader 5210"

Foxwell NT530

• Features: Bi-directional features, constantly updating, no yearly fees.
• Pros: Affordable, good scanner.
• Cons: Limited coverage for all car types.

Innova 5210 and ZR8

• Comparison: ZR8 is equivalent to Innova 5210, both retail for $100 and use the same software.
• Pros: Affordable, user-friendly.
• Cons: Limited coverage, may not work with all car types.

P0420 Code Discussion

• Issue: Likely related to a clogged or failing catalytic converter.
• Advice: Start by cleaning/replacing O2 sensors, consider replacing the catalytic converter if issue persists.
• Pros and Cons: Driving with the code is safe, but may lead to poor gas mileage and emissions issues.

OBD2 Scanners

• Recommendations: Basic OBD2 scanners work on most cars, some users suggest specific brands/models like Topdon, Vgate iCar Pro 2S, and others.
• Pros: Cost-effective, efficient for smog checks.
• Cons: Basic functionality, may not work for advanced diagnostics.

General Car Buying and Diagnostic Tips

• Advice: Check online car forums for common car issues, get a pre-purchase inspection from a reputable mechanic, use caution with used car purchases, consider professional diagnostics for specific car models.
• Pros and Cons: Due diligence in car buying is essential, be cautious with private sellers, and inspect the car thoroughly.

Dealership and Diagnostic Tool Discussion

• Issues: Some dealers may be hesitant about customers using OBD readers on their cars.
• Advice: Be cautious with dealership cars, consider getting a professional inspection.
• Pros and Cons: Some dealers may restrict OBD reader usage, which can be a red flag about the car's condition.

Other Codes and Diagnostic Tools

• Issues: P20EE and P2002 codes might relate to NOx sensor, DPF blockage, or EGR cooler issues.
• Advice: Consider professional diagnosis for specific car issues like DPF blockage, EGR cooler problems, and NOx sensor errors.

Overall, users recommend investing in a reliable OBD2 scanner for diagnostics, conducting thorough research before vehicle purchases, and seeking professional advice for specific car issues. Understanding common car codes and using diagnostic tools properly can help maintain vehicles effectively.