Tech Tips

MISFIRE DETECTION

One of the most important diagnostic changes to come out of On-Board Diagnostics Generation II (OBDII) is
that of Misfire Detection.

Tech Stuff for

2001 – 2006 Ford Escape – Mazda Tribute

2005 – 2006- Mercury Mariner

Technical Information 2000- 2001 Mazda MPV

TSB 2001 – 2002 Toyota RAV 4
Catalytic Converter

Technical Info 1996 – 2000 Honda Civic
Catalytic Converter Manifold Applications

Bulletin 2002 – 2004 Toyota Camry 2AZ-FE
Manifold Converter Applications PO420 MIL ISSUE

What Does the Term California Emissions Mean?

What Will Render a Catalytic Converter Inefficient?

Poor vehicle maintenance is a major contributor to the
creation of conditions that eventually lead to converter
inefficiency.

WHAT IT MEANS WHEN YOUR GET A CODE READ OF PO420 OR PO430

It is important to remember that if the “Check Engine Light” illuminates and you read a code of PO420, 421, 430 or 431 this does not necessarily mean the Catalytic Converter is bad!  All the code says is either Converter operating below efficency or Converter operating under threshold.  Nowhere does the code say that the converter is bad. 

The vehicle may very well need a Catalytic Converter but to determine this you should perform proper engine diagnostics.  The  reading of a simple code is NOT performing diagnostics.  The following material should give you a better understanding of what proper diagnostics consist of and how they should be performed. If after reading the material below you still have questions please give us a call, 817-551-7700, and we will do all we can to help you solve the problem.

What Does the Term California Emissions Mean?