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.
Check Engine Light Due to EVAP System Fault on Toyota Echo
Average mileage: 128,968 (50,000–256,400)
22 people reported this problem
9 people shared problem details
2001 Toyota Echo99,655Visitor
PO 0440- REPLACED CRACKED HOSE JUSTED AFTER EVAP PURGE VALVE NEAR ENGINE
check engine light keeps coming on - haven't had it fully diagnosed yet and/or repaired - 1st time was the gas cap O-ring.
2004 Toyota Echo104,950Visitor
Mechanic thought it was the evap in the engine and replaced a small part. Reset and the light came on within a day. He ran the diagnostic again and sent it for a smoke test. Came back that it needs a charcoal cannister. They don't do it in aftermarket so the part is going to run about $300 on its own, plus the smoke test plus installation etc. I also need a ball joint replaced so I'm looking at about $1000! (BRUTAL)
2003 Toyota Echo101,500Visitor
lights been on for a while but I just got it checked because i need regd and smogged here in NV. What a pain ! Gotta get it fixed before i get pulled over again cause they wont register my car with a check engine light problem here.
2001 Toyota Echo100,000Visitor
crack in rubber hose atfer evap valve by air cleaner /sometimes did not set code but would not go into readly-ness mode so i could to to smog station
2004 Toyota Echo142,000Visitor
check engine light came on. Technician indicated evaporative emission system.
2000 Toyota Echo256,400Visitor
Chech engine light on.been on for some time.catalytic converter replace did smoke test nothing.
2003 Toyota Echo63,000Visitor
Gas tank filler tube was rusted and needed to be replaced, $600 to diagnose and replace.
2001 Toyota Echo120,700Visitor
Check engine light came on do to the EVAP system. Have not found the problem yet.
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