Can a small EVAP leak cause poor gas mileage?
Can a small EVAP leak cause poor gas mileage? An A/C evap leak should not affect your MPG at all. While it is safe to drive with an EVAP system leak, it causes excess car pollution. Fixing the problem is often as simple as tightening the gas cap. What are the symptoms of a bad EVAP canister? Here are the symptoms that show the bad evap canister that can harm your vehicle’s machine. The first symptom that shows your bad evap canister is that the ‘check engine light is on. If the cleansing flow is less or more than what...