Fuse is good but its not getting any spark?

Tiny
ADARYL DEEZUL
  • MEMBER
  • 2006 CHRYSLER 300
  • 3.5L
  • V10
  • 2WD
  • AUTOMATIC
  • 13,427 MILES
I'm getting a spark to my starter fuse checked the #15 fuse which is the injectors, ignition coils fuse it's good but it's not getting any spark.
Saturday, September 14th, 2024 AT 6:46 AM

7 Replies

Tiny
KEN L
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  • 48,363 POSTS
Most of the time when the engine is not getting spark the crankshaft angle sensor has stopped working. Do you have a scanner that can watch engine revolution when cranking? If not I would try to swap out the sensor to see what happens. Here is the location so you can check the electrical connector for corrosion. Check out the images (below). Please let us know what happens.
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Saturday, September 14th, 2024 AT 7:05 PM
Tiny
ADARYL DEEZUL
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My apology Ken L, I was in the process of moving I didn't have a clue how to get back to this site. Thank you for the info. I ended up buying new sensors but still had the same problem. I messed around with it one day and was doing ground checks with my test light and placed the test light on fuse 15 which is the ignition coil and injector, and it has a ground showing up on both test points. Then when I test the black plug in at the ECM pin 11 have a 12.53 voltage going to it and also shows a ground whenever I place the test light on it. I'm in need of a pin out diagram for the ECM so I can have a better understanding on what supposed to get power, what gets ground and where everything runs to.
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Sunday, November 24th, 2024 AT 1:58 AM
Tiny
KEN L
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No worries, I am wondering what you mean by "shows ground"? Here is a guide for the usage of a test light:

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Here are the wiring diagrams for the ECM as requested. Check out the images (below). Please let us know what happens.

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Sunday, November 24th, 2024 AT 11:22 AM
Tiny
ADARYL DEEZUL
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Thanks Ken L for the tester question. I just reverse the process when you are checking for a ground by putting the lead on a negative to search for positive. I’ve unplugged every sensor disconnected everything one by one testing for that same ground at fuse 15 and will still have it present the only way I can get it to go away, the harness that connects with the engine harness that has the coil packs, injectors, throttle body, oil sensor, map sensor, TCM it’s 2 ground wires that runs from that harness that attaches to the motor if I unbolt it the ground goes away then I get a spark turning the key over but it won’t send a ground sometimes blowing that fuse.
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Sunday, November 24th, 2024 AT 12:58 PM
Tiny
KEN L
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It sounds like there might be wiring problem, here is the circuit for the fuse #15 so you can see what to check. Check out the images (below). Let us know how it goes.
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Monday, November 25th, 2024 AT 8:56 AM
Tiny
ADARYL DEEZUL
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Okay thanks. When I get off, I’ll check my routing wires with the diagram you sent and when I’m done, I’ll definitely let you know Ken. Thank you.
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Monday, November 25th, 2024 AT 10:21 AM
Tiny
KEN L
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You are welcome. Let us know how it goes.
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Monday, November 25th, 2024 AT 12:30 PM

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