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Forum namePerformance/Engine
Topic subject2.4 seqential wiring
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i5&topic_id=133471
133471, 2.4 seqential wiring
Posted by streetlightning, Mar-24-11 08:39 AM
im swapping to the edz, i ran 2,0 seqential, but now since going 2.4... what , besides cam sensor angle do i need to change.. ie the injector wiring
133472, RE: 2.4 seqential wiring
Posted by CODE4, Mar-24-11 08:50 AM
Search. There are plenty of threads regarding 2.4 swap details & what is required.
133475, RE: 2.4 seqential wiring
Posted by streetlightning, Mar-24-11 09:54 AM
there are? and isnt this a MS?.. i guess i posted in the wrong area..

this ? was asking how to wire the injectors for sequential injection using MS-e on the 2.4

134164, RE: 2.4 seqential wiring
Posted by streetlightning, May-19-11 11:13 PM
ok, im still at a wall here.. ive been all over Neons and msextra, and they havent been so helpful since this isnt a controlled by the stock pcm.. but i have some info, mostly from dave, Thanx in advance dave, since youll prolly be the one to help... so

heres my setup now,
2.0 seq
Inj 1- cyl 1 inj 2- cyl 3 inj 3- cyl4 inj 4- cyl 2.

dave said:" you rotate the firing order forward a cylinder."

so would that mean i take the injector pigtais from above set up to

Inj2-cyl 1 inj3-cyl 3 inj4-cyl 4 inj 1-cyl 2 ?

i think ive over thought this so much it hurts to look at.. again thx for any help .. im getting down to the wire here.

134170, RE: 2.4 seqential wiring
Posted by CODE4, May-20-11 06:17 PM
Nope.

Obviously the firing order for both motors is 1-3-4-2. For sequential wiring in the MS application, we use as you stated:

Inj A - Cyl 1
Inj B - Cyl 3
Inj C - Cyl 4
Inj D - Cyl 2

... since the MS only fires the injectors in numerical order from its standpoint.

In a 2.4 swap (regardless of ECU used) the injector pigtails are swapped or the ECU is re-pinned so that:

Inj 1 - Inj 3
Inj 3 - Inj 4
Inj 4 - Inj 2
Inj 2 - Inj 1

The firing order remains 1-3-4-2, but it compensates for the trigger wheel machined into the EDZ crankshaft counterweight being different than the 420a crankshaft counterweight.

So using both of those swap diagrams to gain a sequential injection on the 2.4:

Inj A - Cyl 3
Inj B - Cyl 4
Inj C - Cyl 2
Inj D - Cyl 1

The firing order remains the same, however it is using the correct sequence based on the EDZ crank trigger.