Evap system leak detected. Evap incorrect purge flow.

[BlackTy]

Is there a way I can diagnose the problem by myself? I fear paying a shop to take a look at the problem will cost a lot of money too.

[WeeYari]

Originally Posted by BlackTy

I fear paying a shop to take a look at the problem will cost a lot of money too.

Make some phone calls. What do you consider 'a lot of money'? I paid $115 for the diagnostic I had done, which included the aforementioned smoke test. At some point here, your time has got to be considered of some value.

Unless it was hanging loose, the gas cap would have thrown a P0456 (minor leak).

[thebarber]

also, no one in canada uses the number of km traveled on a liter of gasoline. its L/100km.

8.3L/100km isnt terrible for city driving in a slushbox. that your previous car did 6.7L/100km is great. but a 95 civic is a bit lighter on smaller, narrower tires. all things contribute to better fuel economy.

i used to commute in my echo 110km to work 3 days a week and going from a 175-65-14 to a 195-50-15 changed my FE by almost 1L/100km (5.9 to 6.8 or so)

[Vyaris07]

My Yaris 2007 got issue with P0441 code, read this forum and figured out the EVAP canister rubber is degraded, then :
1. Remove gently the canister out.
2. Wrap each very-end with office 1/2" wide clear-tape about 3-4 turns.
3. Re-insert the canister pipe back gently.
4. Bought two spring clamp 3/8" size, put on at least 1/4" from each end.
5. Run engine and turn on the code reader, clear the P0441.
6. Check the gas cap for clean-up the O-ring seal, then tied it up with 1-2 clicks.

After running idle for 5 min, read the code again, as result, no more P0441!
DIY is easy as this task!