Exhausting The Possibilities of What Killed The Cat
A catalytic converter may seem simple – but how does it do what it does and what happens when it doesn’t?

AP Emissions Unveils August New Product Announcement
10 new 46-state Federal EPA part numbers have been released.

A Closer Look: Emissions
The Check Engine Light (CEL) is arguably one of the most effective yet underappreciated advancements in reducing vehicle emissions. Following the introduction of On-Board Diagnostics II (OBD II), the CEL is illuminated continuously if an on-board system monitor has failed a specified number of times and is negatively affecting emissions. If a catalyst-damaging event, such

Diagnosing PCV Trouble Codes
When it comes time to diagnose a potential issue with the PCV system, it’s important to look at “the big picture.”
