What is the spark plug gap on 1993 chevy corsica LT 3.1 MFI v6 engine

2008 Impala 3.9 engine firing order

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Jul 10, 2015 - Need help finding the firing order for a 2008 impala 3.9 engine. Most sites/autozone have all the firing orders except for the 3.9 of course ...
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Land Rover Freelander
P0304 AND P0305<<<<<< no engine told at all. a V6 of sorts.?
ONLY>?
misfire on OBD2 means, only weak combustion pressures there.
or weak power from those 2. only
causes are manifold.

1. bad spark plugs there. (i bet all)
2. bad /weak injectors there.
3. weak compression on this 2, (a tool tests this)
4. burned head valves there.
5. blown head-gasket between 4 to 5 (I6) (NO)
6. vacuum leaks (air) to #4 of #5 via intake man or injector seals.
7. bad spark coils. or boots on there tips a carbon wreck.
8. worse deeper engine issues, cam lobes, a mess. or piston rings.

wild guess is this your engine?
2.5-litre V6 Rover KV6 Engine petrol (2001-2006), badged as 'V6'
24-valve quad-cam DOHC.
and horrid belt drive cams super hard to fix. lacking custom tools.
Firing order. 1-6-5-4-3-2
1, 3 and 5 starting at the front of the engine. left-hand bank
means even odd banks.
means head gasket can not do #5 act this V6 not I6
why do a tuneup, 100k miles , new spark plugs and boots on COPs
there are 6 cops there, COIL OVER PLUGS.
The boots can be replaced cheap, on tips and new spark plugs
gapped to spec.
USA.(answers)

as you see COP 4 AND 5 DO NOT SHARE SPARK COILS.

Depens on type or brand of spark plug being use. It can range from 0.32" to 0.40". Here's a web link for you to see. https://www.partsgeek.com/catalog/1993/chevrolet/corsica/engine_electrical/spark_plug.html

Firing order is..146325.. Here's a web link for you to see...http://ricksfreeautorepairadvice.com/3-1-v-6-vin-t-firing-order/

http://www.fixya.com/cars/t2036673-firing_order_1993_corsica

you can get guide from many sites.. i know few
error codes/ fault codes, wiring diagrams, schematic diagrams, torque specs, engine info, switches functioning, assemble, disassembly, complete refurbish, repair, installation every single thing is covered
within seconds u can get the access and it's totally illustrative complete

For the 1993 Chevy Lumina:
I do not know if you have the 2.2L In-Line 4 Cylinder, 3.1L V6, or 3.4L DOHC V6 Engine; however I have included all below.

For the 2.2L (4-Cylinder)
Firing Order:
1-3-4-2
Cylinders:
......(back)
1.....2.....3.....4
......(front)
Ignition Coil Connections:
o <---4
...o <---1
.........
......o <----3
.........o <----2

For the 3.1L V6:
Cylinders:
...(back)
5.............6
3.............4
1.............2
....(front)
Ignition Coil Connections:
.|.1..4.|..|.6..3.|..|.2..5.|


For the 3.4L DOHC V6:
Firing Order:
1-2-3-4-5-6
Cylinders:
.......(back)
1........3.........5
2........4.........6
.......(front)
Ignition Coil Connections:
.|.1..4.|..|.3..6.|..|.2..5.|

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!

I do not know if you have the 3.4L or 3.8L Engine; however, I have included both below:

For the 3.8L V6:
Firing Order:
1-6-5-4-3-2
Cylinders:
(back of engine)
2------4------6
1------3------5
(front of engine)
Ignition Connections:
(back)
o <----6
o <----3
___
o <----2
o <----5
___
o <----4
o <----1
(front)

For the 3.4L:
Firing Order:
1-2-3-4-5-6
Cylinders:
(back of engine)
2-----------1
4-----------3
6-----------5
(front of engine)
Ignition Connections:
.........(back)
.|.5..2.|.|.3..6.|.|4..1.|
.........(front)

Let me know if this helped....