Awasome 1993 Camry Check Engine Light 2023. Web the check engine light is on if you vehicle's check engine light remains on constantly, and never goes off, there's a good chance that your 1993 toyota camry has a faulty engine control unit. Most auto supply stores will hook a code reader to your car for free.
Hooked up a good pulled hopefully ecu and check engine light came on again after driving 1/5 of a mile. The most common reason is a problem with the ecu. 163k views 7 years ago.
