EVAP System Leak

EVAP System Leak -

The EVAP system's job is to manage and store fuel vapors to prevent them from escaping into the air we breathe. An EVAP system leak check is evaluated on the smog check either by the vehicles OBDII system or manually on vehicles older than 1995.

In the graphic above, you can see that the entire EVAP system stretches from the rear of the vehicle to the front of the vehicle. Common codes describe leaks as gross, small, or gas cap.

Top 3 Reasons Vehicles Fail Smog Check For EVAP in Vista CA and Oceanside

#1 - Cracked or worn hoses

#2 - Stuck valves

#3 - Broken EVAP canister