i have a 1990 4runner. yesterday i noticed gas fumes were really bad when it is running. after it sits 4 awhile it is hard to start. checked all the fuel lines,nothing. looked at injectors while it being started, could not see anything. but the fumes are worse in that area. any ideas?

The cold start injector can start leaking and drip fuel into the intake after it sits for awhile. Remove the injector, and with it still connected, run the fuel pump without starting the engine. Look for dripping. It may not do it every time.
You can also remove the rubber intake tube and look for fuel inside the engine after it's been sitting overnight.

thanks

a leak is very possibale,you also can check your collent temp senser.it tells the computer when thr engine is at operating temp.if bad it will tell the computer the engine is still cold and dump more fuel into tb,it works like the old style carb with the choke not opening ,will use more gas and smell it to.if all is dry under car worth a try.
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car bumper for a safe drive

Any of the injectors can leak without any visual sign of it.