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Old 03-07-2009, 07:56 PM   #1
kuldud
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Join Date: Jun 2006
Chapter/Region: VIC
Location: BC, Canada
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2013 xc70
silver

Default cylinder number & firing order

anyone know where the exact cylinder numbers (location) are and the engine firing order for the 06 sti 2.5l engine?

thanks in advance!
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Old 03-07-2009, 08:05 PM   #2
Ricewagon
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I know that inline 4cyl firing order is 1-3-4-2. Number one cylinder is always at the front of the engine closes to the radiator. I figure it should be the same for a flat 4. The only difference being our engines are laid flat. After searching turned up subaru firing order seems to be 1-3-2-4.

front
---------
2 |[]--I--[]| 1
| I |
4 | []-I-[] | 3
---------
transmission
front-drive axle
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Old 03-07-2009, 08:08 PM   #3
alcoolaid
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Looking at the front of the car:

3 4
1 2

Firing order is 1-3-2-4
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Old 03-07-2009, 10:09 PM   #4
kuldud
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so let me understand this correctly.

is it this way?

front/rad
3 4

1 2
firewall/tranny
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Old 03-07-2009, 10:43 PM   #5
alcoolaid
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Tranny
3 4
1 2
Front
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Old 03-07-2009, 10:48 PM   #6
kuldud
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awesome. got it now.

thanks alcoolaid and ricewagon.
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Old 03-08-2009, 09:10 AM   #7
bender
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Old 03-08-2009, 03:33 PM   #8
kuldud
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Quote:
Originally Posted by bender View Post
great! an actual illustration. thanks again.
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Old 11-01-2011, 09:10 AM   #9
fullCircling
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just for clarity, the wires go into a single coilpack setup the same way, correct? same orientation?
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Old 11-01-2011, 04:49 PM   #10
Zefy
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yes. it has the layout right on the coil pack. Look beside each plug wire. Most of them have it.
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Old 01-12-2014, 05:24 PM   #11
stibynite
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Simple threads like this remind me why I love Subaru and NASIOC... Just used this for my blown #1 coil
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Old 03-28-2023, 08:04 AM   #12
melvinarda
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four cylinders arranged horizontally, and the firing order is 1-3-2-4. Here are the cylinder locations, numbered from left to right as you're looking at the engine from the front of the car:

Left (driver's side) front cylinder
Left (driver's side) rear cylinder
Right (passenger's side) rear cylinder
Right (passenger's side) front cylinder

So, the firing order means that the spark plugs should fire in this order: cylinder 1, cylinder 3, cylinder 2, cylinder 4, and then repeat youtube apk

is it right?

Last edited by melvinarda; 03-31-2023 at 04:08 PM.
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