EFI, fuel not getting to the engine

Tiny
CALEB GORELL
  • MEMBER
  • 1994 TOYOTA COROLLA
  • 1.8L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
My car will start if I spray starting fluid into the air intake and then once it runs out, the car shuts off. I have tested to see if there is fuel pressure all the way up to the injector rail, which there is. Why are my not injectors letting fuel into the engine?
Sunday, June 10th, 2018 AT 6:23 AM

1 Reply

Tiny
PATENTED_REPAIR_PRO
  • MECHANIC
  • 1,853 POSTS
Well, the fuel injectors have to have power and then they have to pulse while cranking. So that means the fuse and ignition switch must be good and as for pulsing the ECM, its fuse/s and the crank sensor.
So, I will be back with the wiring diagram and a few tests.
Come to find out the fuel injectors are the same feed as the ignition coil, so since you have spark, then the fuel injectors feed should be okay, but you might just want to go ahead and test with a voltmeter or at least a twelve volt test light that the fuel injector black/orange wires are all receiving twelve volts with key on run/engine off and in the start key position.
That is incase there is not a fault with the crankshaft position sensor from which a trouble code might be stored and a check engine light that remains illuminated.
On the other hand if a security or theft message is being received then it might be a security/theft issue and as simply as trying a spare key, cleaning off that key where the pellet is or a battery was disconnected or something to allow the computer to lose its theft password or possibly even something actually triggering the security/theft mode or an actual fault with the security system and possibly it needed to be diagnosed and repaired.
So, is there any security/theft message being displayed or check engine light remaining on past bulb check? Also, that the security or theft light as well as the check engine light even comes on for bulb check. If not check the fuses.
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Sunday, June 10th, 2018 AT 7:49 AM

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