I need a spark plug wiring diagram for a 4.6l Triton V8. 2001

Lancer? Galant? Year?

All questions need 'year make model' as first 3 words.

https://www.google.com/search?q=2.0+Mitsubishi+Spark+plug+Wiring+diagram

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Hello Robert, These diagrams can be found at the link below.
When your on the opening page....


Click Wiring Diagrams
Year: 1992
Make: Mitsubishi
Model: Mighty Max (AKA Triton)
Engine: 2.4 or 3.0
System: Lighting
Sub system: Dome Lamp or your choice.

http://bbbind.com/free_tsb.html

Check with your mechanic and he will be able to tell you. Just a hint don't take all the spark plug wires off the same time. Take one off and put a new one on in it's place. Saves a lot of headaches.

Use a spark plug socket to remove plugs and replace new ones.

Spark plug gap does not effect the engine timing so it's not that critical. Thirty 5 (.035) should work just fine.
Otherwise consult a service manual fro your model or call a Mitsubishi service centre

mitsubishi triton service manual
Mitsubishi Triton L200 2006 2013 Workshop Manuals Factory Service Manuals

auto parts store has it for free

Here you go.

spark plugs are located under ignition coils on top of engine. You will need a spark plug socket size 5/8 and socket extension to remove. Coils have a 2 wire black connecter and a 7mm bolt to remove.

Hi
Here is a diagram.

Free online repair manuals can be found at autozone.com. You just have to register and look around you will find wire diagrams in the manual.
Does the engine crank over but does not start or is it not turning over?
Are you getting any fire? You may check this by removing one spark plug and putting the plug wire on the plug. Then touch the end of the plug to ground, set it against the engine block or valve cover. Have someone turn the engine over while you watch the end of the plug to see if there is a spark. Remember do not hold the plug or wire because you will get shocked.