The Check Engine Light may illuminate due to an evaporative emission (EVAP) system fault. Our technicians tell us these EVAP system faults can be difficult to diagnose but it is not uncommon to find a failed charcoal canister or a loose or worn gas cap.
Resources for the Repair and Maintenance of your 2004 Toyota Echo
2004 Toyota Echo
2004 Toyota Echo Problems
The mass air flow sensor on higher mileage cars occasionally needs to be cleaned or replaced if sluggish acceleration is experienced or the Check Engine Light is illuminated with a mass air flow meter sensor fault code stored.
2004 Toyota Echo Questions and Answers
I was wondering what the approximate MPG was for this car? My girlfriend just bought this car, and we were both wondering.
15 Mar 2012 I took 2004 Echo 4dr Autotrans to dealer for scheduled maintenance. They told me the engine had "sludge" in it & it must be removed or engine replacement would soon result...