two.... it has throttle body fuel injection
replace motor mounts, force-clean fuel injectors, reset engine timing and base idle, may need new fuel injectors, replace spark plugs
A new fuel pump helped my 93 G20. Plus try a full tune-up.It could possibly be the fuel pressure regulator or clean or replace your injectors, or replace the O2 sensor.
1989 g20 van is passenger side under wheel well bolted on chassis
it is located right in front of the fuel rail going to your fuel injectors.....follow the tubing from your fuel filter mounted on the drivers side firewall....this tubing leads right into the regulator.
If you're lucky, and the van's not fully loaded, you will average about 11 to 12 M.P.G on the average.
In the gas tank. You need to take the tank down since it's on the top of the tank.
Mounted in the fuel tank.
check timing plugged muffler
4 Cyl/SR20DE Engine/---O2 sensor,distributor rotor,spark plugs and wires,oil change,transmission fluid change,air filter,fuel filter.And if wanted to change-fuel pump,fuel injectors,fuel pressure regulator.
12 volts DC.
In the fuel tank
It is fuel injected.