Questions tagged [coil-on-plug]

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1answer
66 views

Engine grease fell into combustion chamber

I was changing a spark plug out on a 2000 Ford Expedition with a 5.4L Triton, with the coils on the plugs (COP), and I'm worried about how dirty it was. I was being as careful as possible, but I know ...
4
votes
1answer
16k views

What are the benefits of direct ignition (coil on plug) system?

Most recent gasoline cars have a direct ignition, also called coil on plug, system where each spark plug has its own ignition coil. Before that, cars used a common ignition coil for all cylinders. ...
9
votes
1answer
463 views

Do these coil on plug waveforms suggest I have a bad engine controller?

I have a missfire on cylinder 3. I have swapped the coil from cylinder 6 and 3, but the missfire remains on cylinder 3. I have also done the following: - replaced all spark plugs. - checked the ...
3
votes
1answer
44 views

How difficult would it be to swap out my regular spark plug with a Coil on plug or coil near plug?

I want to take my 1960 mustang and add a Coil on plug for a fun little project.. how much work do you think it will be? First time doing this so I want to know how will I go about doing it?
6
votes
4answers
5k views

Can I put a coil-on-plug system in any car?

Could I put a coil-on-plug (direct ignition) system in, let's say, a 1968 Ford Mustang GT? How much would I have to change? Could I add this setup to any gasoline engine?
4
votes
1answer
66 views

Coil On Plug, Testing The Primary Coil

Are there any alternatives for scoping the primary coil on a COP system other than using a low amp probe? I'm guessing backprobing doesn't work since the ignition control module is built into the coil ...