Question about 1993 Toyota Corolla

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Shouldn't there be fuel pressure with the key turned to the run position? I only get fuel pressure when the starter is engaged and turning the engine over.

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  • Toyota Master
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No you will not have fuel pressure untill the engine is running

fuel pressure is not required to start the engine...only to keep it running

when you turn the key on the computer send a signal to turn the fuel pump on for a second and prime the engine...once it starts the fuel pump relay kicks the fuel pump on then you have pressure.

Posted on Feb 06, 2010

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Yes-- u should have fuel pressure in lines prior to starting ,when u turn key pump activates to pressurize line and supply fuel its always running

Posted on Feb 07, 2010

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If the starter turns the engine and it wont start here's a trick that might work. Turn the ignition key to on but don't engage starter. Listen for a buzzing sound coming from underneath the vehicle near gas trank. The buzzing sound is the fuel pump pumping up pressure. The buzzing sound might last only one to two seconds. Then turn ignition key off and turn it on again NOT engaging the starter several more times. This will help prime the fuel up to the engine. After you've done this several times, the engine should start. Lt me know if I was any help.

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I would check to see if you are losing pressure. You should have constant pressure in the system at all times. A quick thing you may want to try is when you first go to start it don't. Just turn the key to the on position without turning the engine over for about 5 seconds. Then turn the key off. Turn the key back to just the on position again. Turn the key off. then try and start it. Turning the key to just the on position will engage your fuel pump relay for about 5 seconds which in turn will build up fuel pressure. If it starts after you do this the first time you may be losing pressure. You can always put a pressure tester on there and check the prssure while it's not running to see if you lose prssure that way. It should have pressure even when it's not running at all times. I hope this helps and good luck.

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Make, Model, Engine, # of miles?

Do you mean the starter runs but does not engage with the flywheel or grinds?

OR

Do you mean the engine turns over (starter works fine) but it will not start?

If it is the former you likely need a new starter solenoid or complete starter (no all solenoid are available sperately)

If it is the latter, you need to check for fuel pressure and spark.

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Hi. There are things to be check for no starting problem. When you turn the key to sart position, did you hear the engine roaring? if there is no roaring sound you might want to check first with your starter. If you have a helper, you can test the connection by holding a circuit tester lead on the wire that engages the starter. This is the smaller of the two wires connected to the starter. Be sure no part of your body is near the moving parts of the engine - it could still start at any time! Have a friend turn the key and check the current. If you're getting current to the starter but it ain't spinning, it needs replacement.

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