DIY check engine light(fault code P0420)

In this video you can see we checked the fault code P0420 by Launch OBD2 scanner. https://youtu.be/IYrk8PSKuMU

OBD2 scanner NOT working

Many car owners purchased one OBD2 auto scanner from shope,But there no any codes when check engine light on. What's matter ? If you've plugged into your car's diagnostic port and aren't reading anything at all, you might think that your OBD-II brain has fried, but don't declare it dead yet. On many cars, the…

50% OFF OBD2 code reader deals

Time limit : June 2018 50% OFF : Launch CR3001 code reader Coupon code : 50OUSP5Q Basic funtion: Read trouble code for engine light. Learn more Link: https://goo.gl/L7TzKZ 12% OFF Launch X431 CRP123 Coupon code : 127RHVT7 Special function: ABS and SRS Systems Diagnosis Learn more Link : https://goo.gl/x3speL Want to join giveaway events ? Please follow us on…