Engine turns but not starting fuel pump is working 1993 chevy G20. it is getting fuel. it tries to start then just turns over

replace ac compressor,,they will lock up in some cases,,causes the engine to not even turn over,,plz replace ac compressor ,,try to take belt off see if it turns free by hand!

I would be looking for fuel first a faulty fuel pump. second seeing if you have spark, bad wires or plugs or even distributor, timing could be out

Check the fuel pump fuse on the fuse block first because the fuel pump is located inside the fuel tank. It is the 20a (yellow) just above the fuse puller.

make sure of connection of fuel pump ,and check by ignition if it works or not.

loosing fuel pressure, have you replace fuel pressure regulator, if the regulator is bad, it will have not enough pressure in between the injectors and the regulator. the fuel regulator maintain a proper pressure so the injectors will spray the correct amount of fuel every time the computer tells its to. weak pressure will cause injectors not to spray correct amount of fuel into the intake although will cause your engine to starve for fuel just like you have explained. the parts cost around 135 bucks and easy to replace.

There are three relays all grouped together on the firewall on the passengers side. All three are related to your situated. We can eliminate one of them because you stated that the fuel pump is operating fine. Now that leaves the relay for the ECM(engine control module) this tells the injectors, cold start and run, when and how much fuel to supply and also controls ignition timing and spark advance. The third controls the AC compressor. Now I've got to remind you that I started working on fuel injection systems the day they started failing here in the US around 1972.These were such vehicles as Mercedes, Saab and Volvo. I've worked on every configuration, TBI, MPI, diesel etc.etc. I may on occasion cross one fact with another or mispronounce certain aspect of a system however, These three injectors are where you want to concentrate your efforts. With some finnesse you can swap the harnesses from one to another. If your car runs fine and your AC suddenly does not, then you know that that relay is faulty. Do this until you get your answer. Best of luck my friend, Dana

intake vacuum leaks or bad wires and plugs.

That sounds like the ABS pump. If you have 4 wheel ABS that pump has a history of problems Leave it alone if its working now. Pump is very expensive.

Normally on chevy ignition modules when they go bad, they will quit when they get hot & after cooling down will work again, so when you have them tested they have cooled down. I would try changing it & see if it wont fix it.

Check for spark and fuel. If you have spark make sure your fuel pump is working. If pump is working and no spark, check for spark off coil wire. If nothing there either, remove ignition module and take it to Napa and have them check it. Have them test it several times.