The firing order & plug wire order or route /

Here is the firing order and spark plug wire routing diagram for a 2006 Chevy Impala LT 3.9 V6:
Firing order: 1-2-3-4-5-6
Spark plug wire routing (starting from the driver's side):

• Cylinder 1: connect to the coil tower closest to the driver's side headlight
• Cylinder 3: connect to the coil tower next to cylinder 1
• Cylinder 5: connect to the coil tower next to cylinder 3
• Cylinder 2: connect to the coil tower closest to the passenger side headlight
• Cylinder 4: connect to the coil tower next to cylinder 2
• Cylinder 6: connect to the coil tower next to cylinder 4

Note: Make sure to route the wires properly to avoid cross-firing.

The firing order for 3.1L is 1 2 3 4 5 6, Notice how cylinders are numbered. One coil fires two plugs. Route the spark plug wires accordingly.

The firing order for v6 is 165432
The driver side cylinder bank is numbered from front to rear-- 2-4-6
The passenger side cylinder bank is numbered from front to rear 1-3-5
The picture is for your coil pack, hopefully. So you can see how the coil towers are numbered.
My database for 09 showed coil on plug ignition. Is this the original engine?
I did see info for 07--3.7L that did appear to show a coil pack in tune-up manual.

Uh, the actual firing order is 1 2 3 4 5 6. There should be a sticker under hood that shows proper wire routing to the 3 coilsI need help with the 97 3.1 v6 monte carlo ls firing order?
The firing order goes 1-6-4-3-5-2 im pretty sure im not too familiar with v 6's

https://www.google.co.uk/search?q=Nissan+king+cab+truck+ignition+system&tbm=isch&tbo=u&source=univ&sa=X&ei=T3CHVMrwGoK6acyzgtgD&ved=0CD4QsAQ&biw=1252&bih=590#facrc=_&imgdii=_&imgrc=yzhq3tz00BusCM%253A%3Bpo6xjjN1R5li7M%3Bhttp%253A%252F%252Fwww.partsbase.org%252Fmedia%252Fimages%252Fnissan%252F56%252F56ab5d24d3cc3c6f22371ee4e980c27f.png%3Bhttp%253A%252F%252Fwww.partsbase.org%252Fnissan%252Fpickup-720-us-k-cab-z24i-st-f5-long-4wd-fed-engine-electrical-ignition-system%252F%3B1024%3B548


here is the google search i used
it brings up the full blowup details etc
you can look thru and find the details you need
there is a few different configs best you check it out

No, the longer length will not cause your problem. The longer wires are simply for the plugs longest from the distributor cap (or coil pack) to the spark plug, and no particular length is critical, just as long as all wires will fit.
Do you mean it ran fine before you changed the wires and plugs? If so, you may have one or two not fully seated at one end or the other. Go back and make sure each wire is pushed in correctly, You should hear or feel the new wire snap over the new spark plug.

firing order is 1-6-5-4-3-2... the driver side is 1 3 5 and the passenger side is 2 4 6

Remove one spark plug wire check length against new wires and replace . do this one plug wire at a time untill they are all done

For the firing order and wiring routing for the 8 plug 4 cylinder engine: (Plugs on the intake manifold side are coded "I", and on the exhaust manifold side are coded "E")

Wire to 1I should be connected to tower on the distributor facing directly to the front of the vehicle. Going counterclockwise from there, the order is (1I), 2E, 3I, 1E, 4I, 3E, 2I, and 4E.