I was told i have gas wash what can i do to fix it? when you open up the oil cover you can smell gas

The probable cause is oil dripping onto the exhaust and being burnt. This puts the valve cover gasket as the prime suspect as the other two areas are lower down

If your oil smells like gas that's exactly correct . fix it ASAP or it will damage the motor due to contaminated oil!

Hi your valve cover gaskets need replacing .
The reason you smell oil burning is the residue of oil ,,that getting in to the spark plug recess holes .As the spark plugs get so hot , then the oil is burning off .The vapour is sucked in to your heater vants . I know i have just replaced mine,and now i have no smell ...

You should have no need to replace a timing belt unless the timing belt itself is damaged. However it is a generally good idea to replace a timing belt, whenever you take it off, just as a general preventative maintenance. But yes, when oil smells like gas it can mean it's your head gasket, however while you've got it apart, be sure to check your other gaskets as well, as they may start becoming faulty soon too.

Blown head Gasket or cracked head

first off you have to fix the misfire problem before you can do anything else,as a misfire will cause a fuel smell because you have 2 cylinders acting like a raw fuel pump ,by the fuel entering the cylinder not burning a being pumped out unburned.so you have to find out why it is your six cylinder car is only running on 4 cylinders and repair the problem.then you can go from there if you have to,also you will have to change the oil as it will have fuel in the oil which thins out the oil to a point it does not do it`s job and could ignite in the oil pan causing other problems

There is most likely an engine oil leak that is leaking on the exhast that runs accross the bottom of most toyota engines. Valve cover is common

possible valve cover leaking,at least this is more likely the cause, they make a die that you can use too help determine where it is leaking but some dies require ablack light too see the die,

faul managment control senser possable? or air intake senser?

sometime you will get this smell if you go a little over your oil change time of every 3000 miles also check when you replace the PVC valve normally in top of the valve cover gasket cause this will cut back on the ventilation that is needed to go through your engine if you take it off and it rattles it is still good but if it has been a while since you changed it it would be a good idea to change it also