Starting with a 1963 California law requiring a PCV (Positive Crank Case Valve), cars and light trucks have been a major focus of clean air laws. In 1990 stricter tailpipe standards and on board computer mandates have changed the way vehicles are made and repaired. A sluggish Oxygen sensor or stuck EGR valve can cause an emission failure or even a driveability problem.

The Basic Engine Analysis is the first step of the Failed Emission Analysis to identify emission control problems with today's computerized car. Even if you are in a state that does not require some form of emission testing, a good working knowledge of gas analysis is a valuable tool for any technician .
 

Tunex Emission Control Service

 
Tunex performs the full emissions & safety testing in states where this procedure is required by law.