List Of Can A Car Pass Emissions With Check Engine Light On References. If you have an older model vehicle with an obd system, loose connection, or poorly wired electromagnetic compatibility (emc), it might be a significant reason for a failed emission test. When the catalytic converter fails, the check engine light will come on.
Web according to the inspection and maintenance unit, if your car is 25 years or older, you’re also exempt from emission testing for 2022, which includes any vehicle made in or before 1997. Web what does it mean when your check engine light comes on? Web the check engine light — more formally known as the malfunction indicator lamp (mil) — is a signal from the car's engine computer that something is wrong.
