MOTOR SWAP BETWEEN GENS

Discussion in 'Mazdaspeed 3/6 Engine' started by Jakesaulis, May 18, 2020.

Watchers:
4 users.
  1. Jakesaulis

    Jakesaulis Greenie N00B Member

    Joined:
    May 18, 2020
    Posts:
    1
    Trophy Points:
    1
    Location:
    New Brunswick, Canada
    Ratings:
    +0 / -0
    Hey everyone,

    New here. I have a 07 speed 3 with full bolt ons and i bought a 2nd gen motor from a friend and just got it hung in the car. I have a few questions. I know the block is the same, however I have realized PS pump is different along with AC compressor (they will be swapped). my question is should I take the ECU from my car or the one from the 2nd gen (does it matter) next questions is I have had a person whos pretty handy with his speed and well versed in it tell me that the harness to the coil packs is different can anyone validate that for me as well as anything else i should change over from the 1st gen motor to the 2nd gen motor to make it work in my 1st gen body. I cant find anything about it on the internet... any and all help will be appreciated!!

    thanks in advance.
     
  2. Mauro_Penguin

    Mauro_Penguin Punk in Drublic. #BlackLivesMatter Motorhead Platinum Member

    Joined:
    Feb 10, 2016
    Posts:
    1,334
    Trophy Points:
    113
    Location:
    Palm Beach County, FL
    Ratings:
    +1,670 / -2
    Coil pack harness should be the same.

    Just swap over your accessories like the power steering pump and a/c compressor.

    Keep your ECU, it has to be married to the key and gauge cluster for them all to work. A gen2 ECU will not work in a gen1.
     
    Mauro_Penguin, via a mobile device, May 18, 2020
    #2
    • Like Like x 4
  3. Easter Bunny

    Easter Bunny Professional Engineer Motorhead Platinum Member

    Joined:
    Feb 11, 2016
    Posts:
    3,233
    Trophy Points:
    113
    Location:
    Earth
    Ratings:
    +3,532 / -19
    /end thread
     
    Easter Bunny, via a mobile device, May 18, 2020
    #3
    • Like Like x 3
  4. Eroler1

    Eroler1 NPC Greenie Member

    Joined:
    Jan 27, 2018
    Posts:
    182
    Trophy Points:
    28
    Location:
    Aincard
    Ratings:
    +81 / -5
    Coil pack harness is actually not IDENTICAL but sort off same.

    Gen 1 will have the capacitor (located behind HPFP, just above the EGR area, and im not sure what is that capacitor for but its wired with positive lead for all the coilpacks)

    Gen 2 does not have the capacitor

    Other than that its plug and play,. (same)
     
Loading...

Share This Page

Users Viewing Thread (Users: 0, Guests: 0)