No start will crank

Hi,

There is a correct firing order. Any of the coils can be changed between cylinders, but the correct connector for each cylinder is a must. When you try starting it, does anything happen? For example, does it back fire, sound differently, or anything you can tell me?

Let me know.
Joe

Okay. Each coil should have three wires coming to it. All will have a black (ground), Violet (power from PCM power relay/fuse 78) and then each will have a third wire that is a different color than the others (all go to the PCM) at the right rear of the engine.

First, if the only thing you did was remove and replace the coils and plugs, I can't imagine you damaged anything. Did you confirm the plugs were properly gaped? I have seen people collapse the electrode when installing.

Next, if you were at all rough with the wiring harness, you may have damaged a ground. There are two grounds which all coils use. See pic 2

There is a chance something caused the PCM relay fuse to blow. Fuse 78 in the battery junction at the right front of the engine compartment.

If the ignition key was off, I feel the PCM is fine. So, first confirm fuse 78 is good. See pic 1.
While you are in there, check to make sure fuse 77 is good as well. That sends power to the PCM (VPWR) which simply stands for vehicle power.

If the fuses are good, the Violet wire should get power when cranking.

Next, check the black wire for continuity to ground. See pic 2.

I added pic 3 just so you can see the one different color wire to each coil. Those are the wires that go to the PCM. I can't imagine anything happened there, so we won't worry about that at this time.

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If you have questions, please feel free to ask. Let me know what you find.

Joe

Dave, you are very welcome. Let me know what you find. I have to run to Harrisburg in the morning, so I will be gone most of the day. I will be back in the evening.

Also, just so you understand the schematics better, although it seems that the coils always have a ground, that isn't the case. The PCM opens a ground path in the coil allowing the ground to activate. So even though it looks like they are attached directly to a ground (and they are) the ground circuit isn't completed until the PCM tells it to be.

Take care and let me know.

Joe

Dave,

I'm glad it was a simple fix. I'm glad I was able to help. You take care as well and let us know in the future if you need help with anything.

Take care,
Joe