Get Under the Hood with Autophix 3210: The Advanced Car Scanner for DIY Enthusiasts Leave a comment

Scanners

P0172 Code Fix? Here’s the Exact Fix (Step-by-Step)

Symptoms:

  • Rough idle

  • Black exhaust

  • Decreased fuel efficiency

  • Illuminated check engine light

Tools Needed:

  • DiagtPro X400 Scanner

  • Multimeter

  • Smoke machine

Diagnostic Steps:

  1. Test Fuel Trim Values: Hook up DiagtPro to check fuel trim values. A reading of +10% or higher indicates a rich condition.

  2. Check Vacuum Leaks: Use a smoke machine to inspect for vacuum leaks. Listen for hissing near the intake manifold.

  3. Avoid This Mistake: Don’t assume the O2 sensor is bad—test wiring first. Check the wiring harness for corrosion or damage.

Final Fix: Replace the Mass Airflow (MAF) sensor, then clear codes with DiagtPro. This should resolve the P0172 code and restore proper engine performance.

Diagtpro

we are proud to offer great prices, excellent service,good quality, competitive prices, fast delivery Worldwide with Free Shipping.We value all our customers and people who come to our website. Thank you for visiting DiagTPro !

Leave a Reply