just bought a yota had been sitting for a year. pulled check engine codes got 1 2 3 and 4. which leads me to believe its a fuel issues by checking the fsm. its starts up but dies right after it starts or 1-4 secs afterwords. so im guessing its a fuel pump or pressure regulator?? what do you guys think? thanks !!!

 

oh yea its a 92 toyota pickup with 22re with 5spd. also might be bad gas??

 

Drain the gas and change the fuel filter. I'd do that if the vehicle has been unused for a significant period of time. Inspect the spark plugs. Get some new, clean gasoline, and see what you get.

 

haha wow. I went over the motor and found the airflow sensor harness connection wasnt fully connected. pluged it in and runs awesome now lol.