Firing Order

lambertius

lambertius

Banned
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341
I don't suppose you know if Maserati use conventional cylinder numbering or not?

I've seen a few whackadoodle numbering patterns on cars before...

65287
 
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rs48635

rs48635

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Messages
3,181
I need to know this too. My latest code relates to cylinder 1.
P0351 is ignition coil A primary / Secondary Circuit
According to the picture ^^ that location has my new coil pack. Gah!!!!!
Will swap with another to see if it the fault moves.
 
lambertius

lambertius

Banned
Messages
341
rs48635 said:
I need to know this too. My latest code relates to cylinder 1.
P0351 is ignition coil A primary / Secondary Circuit
According to the picture ^^ that location has my new coil pack. Gah!!!!!
Will swap with another to see if it the fault moves.
Click to expand...


I've found the answer, so hope this helps!

65306

65307

So according to that, Maserati followed an unconventional cylinder naming as below...

65308

So if you follow the firing order (1-8-6-2-7-3-4-5) through it looks like this...

65310

Lamborghini does it the best - they have a little plaque in the engine bay with the cylinders identified and the firing order.
 
rs48635

rs48635

Member
Messages
3,181
lambertius said:
I've found the answer, so hope this helps!

View attachment 65306

View attachment 65307

So according to that, Maserati followed an unconventional cylinder naming as below...

View attachment 65308

So if you follow the firing order (1-8-6-2-7-3-4-5) through it looks like this...

View attachment 65310

Lamborghini does it the best - they have a little plaque in the engine bay with the cylinders identified and the firing order.
Click to expand...

Exactly what I needed. Thanks!
So for my UK rhd car the number 1 cylinder is on my side closest to the radiator. Happy days, it is also one of the easiest coil pack to swap.
 
G

gstroe

Junior Member
Messages
47
Hi rs48635, I had the same fault code, posted on the US forum, bought a new coil and I’m still reeling. The culprit was the spark plug. I would check that first before buying a new coil
 
lambertius

lambertius

Banned
Messages
341
So I just realised I made a mistake - the cylinder numbering is (from the front) L1234 R8765. It is the most counter intuitive numbering I've ever seen.

Anyway, turns out the coils are numbered for anyone trying to work it out in the future!
 
rs48635

rs48635

Member
Messages
3,181
gstroe said:
Hi rs48635, I had the same fault code, posted on the US forum, bought a new coil and I’m still reeling. The culprit was the spark plug. I would check that first before buying a new coil
Click to expand...
Thanks for the cautionary advice. Already had a spare coil pack . The spark plugs are new after recent service. The coil pack 8 was suspected bad at service and swapped out for good used item. The coils pack in 8 was swapped with 5 so I could easily change myself at home. Thanks Ash ;)
Since then had intermiitent CEL and code was always 7501. My assumption was that cylinder 5was number one so it has been swapped twice. The real number one coil pack has been replaced for the first time! No more error code or CEL. Only one test drive so far so unable to be certain.
 
FLORADAEDD

FLORADAEDD

Junior Member
Messages
84
Thank you for your help. The front right injector wire has number 8 on it, thats why I was not sure. Should have realised the one coil pack that needs changing is at the rear awkward spot.
 
Zep

Zep

Moderator
Messages
9,283
FLORADAEDD said:
Thank you for your help. The front right injector wire has number 8 on it, thats why I was not sure. Should have realised the one coil pack that needs changing is at the rear awkward spot.
Click to expand...

It’s always the way!
 
hladun

hladun

Member
Messages
149
Looking from front of engine. Left bank 1 at front to 4 at rear. Right bank 5 at rear to 8 at front.

Firing sequence: 1-8-6-2-7-3-4-5
 
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