Both codes point to the EVAP system which includes the gas cap. Cheapest thing to do is replace the cap first. Even cheaper is thin film of Vaseline on the gas cap gasket. 89 integra passed emissions check using this method til I bought new cap and really fixed code.
If not the cap the hose going to the EVAP canister may be brittle and leaking.
Additional replacements might include a new O2, clean throttle body, Clean MAF if you have one, clean PCV valve or replace. I assume Dad kept up with normal maintenance since 200k+ km on the clock so you have a good start, but fuel filter replace, check all ground connections for good return path (they get corroded)
Basically clean everything possible.
Now the bad news...
Did you have the timing belt changed on the car? I believe the 3.0 v6 has a belt. This is BIG $. I think the Honda 3.0 in 2003 6's are interference engines which means broken belt and you have a trashed engine.:thumbsdow
Miker
If not the cap the hose going to the EVAP canister may be brittle and leaking.
Additional replacements might include a new O2, clean throttle body, Clean MAF if you have one, clean PCV valve or replace. I assume Dad kept up with normal maintenance since 200k+ km on the clock so you have a good start, but fuel filter replace, check all ground connections for good return path (they get corroded)
Basically clean everything possible.
Now the bad news...
Did you have the timing belt changed on the car? I believe the 3.0 v6 has a belt. This is BIG $. I think the Honda 3.0 in 2003 6's are interference engines which means broken belt and you have a trashed engine.:thumbsdow
Miker