Check out the tech article on 1973 Emission Control Systems, brought to you by the experts at High Performance Pontiac Magazine.

Inspecting the vehicle: A visual inspection of the vehicle can reveal issues such as worn tires or malfunctioning emissions control systems that could impact the drive cycle test. Check the test ...

A purge valve is a vital component of a vehicle's evaporative emission control (EVAP) system. Its function is to control the flow of fuel vapors from the fuel tank and evaporative canister into the ...

To most of us, emission control systems are some sort of "black art" devices that have been forced upon us to rob performance and ruin gas mileage, but that's really not the whole story. Air ...

Californian Tuner Fined $1M For Selling Diesel Emissions Cheat Devices For Pickups Sinister Diesel told pickup truck owners how to use its systems to pass emissions tests ...

A new proposal would allow enforcement of the Clean Truck Check regulation for California-based vehicles but would disapprove ...

Figure 2. ABCT Battalion/Squadron Communication System Bands7 (U.S. Army) Doctrine, emissions control integration By enabling units to adjust their EMS emissions based on threats present in the ...

An OBD normally detects any removal or malfunction of a vehicle’s emissions control equipment, recording a diagnostic trouble code and triggering a vehicle’s “check engine” light.