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The car cranks fine but will not start

Tiny
CARNEY021
  • MEMBER
  • 2003 TOYOTA COROLLA
  • 1.8L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 167,000 MILES
The car cranks fine but will not start. The fuel pump does not come on while cranking. I am getting power to the fuel pump and I also removed it and it bench tested good. I tried spraying starting fluid in the intake while cranking and it does not try and start. I have checked all the fuses and swapped relays. I have checked and cleaned the ground straps in the engine bay. I have replaced the crank position sensor because I already had a new one. I have got power to all the coils and injectors. I am running out of ideas other then the ECM.
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Wednesday, October 17th, 2018 AT 6:15 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,895 POSTS
Hello

There is a C/OPN and EFI relay that need to be checked to make they are working. Here is a guide to help you test and the relay locations with the engine wiring diagrams so you can see how the system works:

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.

Cheers, Ken
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Friday, May 21st, 2021 AT 5:56 PM

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