relay or fuses that control the fuel area

[dragon_person48884]

i have a 1991 geo tracker that is not getting power to the injecter and automatic choke and whatever else go with it . it will turn over all day its getting good spark ive checked all the wires i have even changed the computer and nothing the fuel pump works good. if i pour some gas into the throttle body it will start until the little gas i put in runs out i dont know if its a relay or what but i need some help

[baumbr]

Check for fuel in the tank, I've seen a number of people who went to a lot of expense and effort diagnosing an empty tank. Change the fuel filter and make sure that it is installed the right way around. Check fuel lines for kinks, leaks, etc.

Check the IGN fuse in the panel under the dash, driver's side. Test it with an ohm meter, it may look good but be blown along an edge where you can't see it. It seems illogical, but on a Tracker a lot of engine management circuits are passed through this fuse, including the auto choke.

Turn off the radio, fan, etc. Set your ignition switch to off (key off). While listening very carefully in a quiet place turn the key to on, Not Start. You should hear two or three relays click in and the fuel pump purr for a second. If you don't hear any of this then you have an electrical problem. Key off.

Get yourself (beg, borrow, rent or buy - they're cheap) a fuel pressure gauge. Loosen the gas cap, hook the pressure gauge to the fuel line schraeder valve in the engine compartment (don't confuse it with a similar valve on the air conditioning system). Tighten the gas cap. Turn the key to on, Not Start. The pressure gauge should read in the 30 to 40 pound range. If not there is a problem with the pump, fuel pressure regulator, fuel filter, etc. Don't forget to key off, and remove the gauge.

Finally get a shop manual like Haynes or Chiltons. Follow the diagnostics.

Good luck and let us know what you come up with.