engine wiring diagrams please?

2004 TOYOTA COROLLA
254,754 MILES • 4 CYL • 2WD • AUTOMATIC
Avatar
BLESSING EWOBOR
  • MEMBER
  • 754 POSTS
Good morning, I have checked the fuse and relay, they are in good condition. The fuel pump and fuel injectors are functioning but there's no spark on any of the plugs. I tested the wires connected to the coil just to find out that there's no ground in any of the plugs. What could have caused it?
Oct 14, 2020 at 8:01 PM
Advertisement
Avatar
STRAILER
  • CERTIFIED EXPERT
  • 53,872 POSTS
Most of the time it will be the crankshaft sensor which is common. to be sure here are are two guides to help us see what's going on:

https://www.2carpros.com/articles/car-cranks-but-wont-start

and

https://www.2carpros.com/articles/how-to-test-engine-compression

I have also included the crankshaft position sensor location so you can check it out. Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.

Image (Click to enlarge)
Attached Media
Oct 15, 2020 at 10:27 AM
Avatar
ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
Here are the engine wiring diagrams with a guide to help check the connections.


https://www.2carpros.com/articles/how-to-check-wiring

Check out the diagrams (Below). Please let us know what happens.
Images (Click to enlarge)
Attached Media
Attached Media
Attached Media
Attached Media
Attached Media
Attached Media
Dec 6, 2020 at 5:18 AM
Advertisement
Avatar
BLESSING EWOBOR
  • MEMBER
  • 754 POSTS
Thank you very much it was a bad connection at the crankshaft sensor
Dec 6, 2020 at 4:41 PM