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You need fuel and spark to run. Vehicle is about the age that fuel pump goes. Have someone get in vehicle and close door (so key chime sound not interfering) turn key to on - but not all the way to start and while they do that stand behind, or next to, vehicle and listen near gas fill door, or even bend down and listen near tank, for the whine of the fuel pump. It should make a whine sound for a few seconds and then turn off when full pressure reached. If no whine, or whine never stops - fuel pump may need to be reset or pump is bad. Check vehicle manual for fuel pump reset switch (usually in passenger foot well or trunk area) and try that button. If fuel pump starts working after reset try starting. If pump is working but still no start then pull a spark plug and ground the base of it to engine and have someone crank it to see if spark is happening at end of plug. Those are first steps to see if you have fuel and spark.
sure , they all ran like new, when new. or yesterday. but not now. that means it BUSTED.
so check for spark. if not spark then fix that. modern cars have EFI, and all EFI cut fuel if the cars ECU brain even thinks for a moment there is no spark (it can see it? so spark is 1st. (if engine is good,) ever give the car a full 60k mile tuneup, (100km) if not why not?
step one- need silence- insert key - turn to on- not start- listen for fuel pump whine- if here nothing- check 1- fuel pump fuse 2- fuel pump wiring (double check your ground!). if pump still does not make whine(pressurizing) your pump is gone. an intermitant pump can be a ground issue or a bad pump most times....
from my experience with cavaliers the fuel pump will only pump until the lines are full of gas and it will not pump again till the gas starts being used, your fuel pump it working fine sounds like but to anser your question NO a bad fuel pump will not mess with your spark, you might want to check your crank sensor, and also check all your fuses and relays. you have a minor problem that is all.
#1 NEED TO VERIFY SPARK AT SPARK PLUGS # 2 CK FUEL PRESSURE AT SCHRADER VALVE ON FUEL RAIL ,,PRESSURE DEPENDS ON TYPE ENGINE ....IF NO SPARK AT SPARK PLUGS CHECK SPARK FROM COIL WIRE , IF NO SPARK AT COIL ,CHECK VOLTAGE TO IGNITION COIL SHOULD BE 12 VOLTS, IF NO VOLTAGE AT COIL ( KEY ON ) CHECK FUSES THEN IGHITION SWITCH. IF NO FUEL PRESSURE AND FUEL PUMP RUNS REPLACE PUMP .. CK VOLTAGE TO FUEL PUMP WHILE CRANKING . CK USING PUMP GROUND WIRE AT THE PUMP CONNECTOR THIS WILL PROVE GROUND ALSO. USE TEST LIGHT TO VERIFY
remove a plug wire. install a plug . lay it on the intake and have someone crank it while watching for spark. no spark. turn key on see if your fuel pump comes on . you should hear it. If not you could have one of two things bad.Ignition module which is inside dist or crank sensor by the crankshaft pulley. hope this helps. you can have the module tested at oreillys or auto zone.
Try spraying starting fluid into the air intake, with the help of someone else starting the car. As they crank over the car, spray the starting fluid into the air intake. Do this for at least 15 seconds. If the car tries to start up the fuel pump has probably gone bad. When turning the key to the on position do you hear the fuel pump humming? If the pump is not humming the fuel pump is probably bad.