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Thread: Ultimate 4 Cylinder to 6 Cylinder Swap Thread

  1. #226
    Join Date
    May 2018
    Location
    Colroado
    Posts
    20
    My Cars
    97 318ti
    Hey everyone!

    I am bring and old epic thread back with what is most likely an ignorant question.

    I would normally be posting in the 318ti.org forum but it doesn't appear to be working for me on any of my devices.

    I am doing an OBD2 m52b25 into my 97 318ti m-tech. Everything is going pretty well. I am just waiting on a clutch and flywheel coming in so I can drop the new motor into the Ti.

    The motor is out of a donor 98 323 automatic that I got a killer deal on the whole car. The motor is going into my manual 97 318ti. I bought a DME with the ews deleted, SAP is also deleted so I got rid of it.

    My first Question is about the reverse lights. Since the donor car and engine harness is coming from and auto and going into a manual car I wont have a reverse switch correct? Is there a way I will be able to rob the plug off the m44 harness and use it to splice into the m52 harness. If so how should I go about that? I am good with mechanical stuff but I am not very good at reading wiring diagrams.

    Question number 2 is, should I use the vapor canister from the 318ti and leave it in the engine bay like it is?

    Question 3, Should I use the FPR off the 323 donor car and just swap that over?

    My 4th and final question for now is do I use the Throttle cable off the 318Ti or does that need to be swapped also?

    Please let me know what I need to do or help me find the right place for me to find out for myself. 318ti being down is really cramping my style.

  2. #227
    Join Date
    May 2018
    Location
    Colroado
    Posts
    20
    My Cars
    97 318ti
    After doing some more research I think I might be up shit creek without a paddle as my 318ti does not have a x69 connector in it but the 323 engine harness does have a x69 connector in it with quite a few pins in it. Is this all the stuff for the Automatic transmission and I wont need it?

    Im kinda freaking out about this. Can anyone shed some light on this for me please

    The first picture is the 318ti and the second picture is the 323


    318ti.jpg323.jpg

  3. #228
    Join Date
    Jul 2006
    Location
    43609
    Posts
    10,870
    My Cars
    335ti 360ti x5-6.0tt

  4. #229
    Join Date
    May 2018
    Location
    Colroado
    Posts
    20
    My Cars
    97 318ti
    I have been using reading through the Auto to Manual swap. I haven't seen or I did not retain what I need to do to do with the middle X69 plug. I checked the Build date on the Donor 323 and its 12/98. I just checked in a panic to see if it was an ews3IIImodel. Luckily it is not the ewsIII. It is a white EWSII so the DME I bought with the EWS delete should work. But I am not banking on it.

    Thanks for the help Bluebimma. I'm glad to see such a legend still getting on the forums and helping people out still.

    Can you direct me on where to look in the Auto to manual to where I can find my answers. I will try to look for myself in the mean time.

  5. #230
    Join Date
    Sep 2018
    Location
    D[M]V
    Posts
    1
    My Cars
    318ti
    Hey guys I've been searching the web for a while for doing an obd1 chassis 318ti to an obd2 m52b28..

  6. #231
    Join Date
    Sep 2017
    Location
    Reading, UK
    Posts
    7
    My Cars
    Z3
    Hi guys, anyone know if I have to change the prop shaft if putting a m52b25 in to a m44 z3? Will Be using m52 gearbox to m44 diff

    Thanks

  7. #232
    Join Date
    Jul 2006
    Location
    43609
    Posts
    10,870
    My Cars
    335ti 360ti x5-6.0tt

  8. #233
    Join Date
    Oct 2018
    Location
    SF, CA
    Posts
    27
    My Cars
    1999 BMW M3 Coupe
    Engine swap gurus...

    318i swapped with a M52B28. How do I properly wire the aux fan to retain AC? I know on the 328i the fan receives a high and low speed signal from the relay, but on a 318i it’s just from the DME (I think this is correct, but could be wrong). But how do I wire it correctly?

  9. #234
    Join Date
    Nov 2016
    Location
    Long Island, NY
    Posts
    332
    My Cars
    A few
    Anyone know if you can use the drive axles and diff from a 6 cylinder E36 with the hubs from a 4 cylinder? I searched and found conflicting information...

  10. #235
    Join Date
    Oct 2018
    Location
    SF, CA
    Posts
    27
    My Cars
    1999 BMW M3 Coupe
    Yes you can but 99% chance you won’t be able to get the axles out of the hub without FUBARing the wheel bearing. Use the proper puller if you attempt. All non-M E36 rear hubs are identical.

  11. #236
    Join Date
    Nov 2016
    Location
    Long Island, NY
    Posts
    332
    My Cars
    A few
    Quote Originally Posted by lokister1 View Post
    Yes you can but 99% chance you won’t be able to get the axles out of the hub without FUBARing the wheel bearing. Use the proper puller if you attempt. All non-M E36 rear hubs are identical.
    Yes, I have the proper tools. Was just curious about compatibility. Thanks

  12. #237
    Join Date
    Sep 2019
    Location
    new zealand
    Posts
    1
    My Cars
    1997 bmw 318i
    hey just a question about the thread, i cant see the photos you uploaded, is there a plug in i need to install

    cheers

  13. #238
    Join Date
    Jul 2006
    Location
    43609
    Posts
    10,870
    My Cars
    335ti 360ti x5-6.0tt

  14. #239
    Join Date
    Mar 2007
    Location
    SD, Cali, USA
    Posts
    11,707
    My Cars
    1995 M3, 1985 745i , S13 240sx sr20det
    I have a question about my car that is hopefully easily answered. It's an 1989 325i and I got it already swapped with M50 from a 1993 525i. It is BARed too so has all the emissions stuff wired in and functional, and it has green check engine light that flashes when tuning on car. Everything works fine but I was doing some research on the swap and came across a mention regarding a wiring harness that supports ABS and oil level sensor for light in check panel. My car has ABS system in place but it does not work, and the oil level light on my check panel is always on. Where should I start looking as far as harness is concerned to try to get these two things to work? I can solder and am decent with a meter so should be fairly easy to do. Photobucket is part of the problem as none of the pics work even if I try to click on them.


    95 BMW M3 Alpine-
    <GO...JIC Cross Coilovers- UUC RCAB, AKG FCAB, Rogue Engineering TM bushings- AA Gen3 Exhaust- Dinan F&R Strut Bars- Dinan F&R Sway Bars- X-Brace- Mishimoto Rad- BBS RK 17x8"- TRM Chip- Dinan BBTB- DIY CAI- JP Performance Headers- 21.5 injectors- JB Racing Flywheel- Bimmerworld TB boot- 540i MAF><SHOW...OE euro clear exterior lights- Depo w/ HID- Hurricane Alcantara interior- Stereo (Kenwood,Sony,MB Quart,Rockford Fosgate,JL Audio)- Black kidneys- Euro 3 Spoke- ZHP Knob- AutoDim Mirror>

  15. #240
    Join Date
    Aug 2020
    Location
    Naperville
    Posts
    1
    My Cars
    1996 Bmw 318ti

    Obd1 m50 into obd2 96 318ti

    I did everything said, yet I still have no fuel or spark. It does crank, but no start. No cel, and fuel pump won’t turn over. Ews was bypassed from pin 1,3 behind the glove box. Also pin 7 on connector x20, and conector 8 was bridges over to pin 1. I bought a fuel pump but haven’t replaced due to no spark, I tried to start the car with starter fluid and it didn’t go please let me know what to do next
    Last edited by shogun; 08-21-2020 at 02:17 AM.

  16. #241
    Join Date
    Sep 2006
    Location
    uk
    Posts
    22
    My Cars
    318 baur 1990, 1990 735i se
    Reviving an old thread again!

    I have a 2000 m44b19 compact and have dropped in a 1993 323i. Ews deleted and runs just fine. However no abs lights.
    Looking at your description number 8 on my x20 is black and white, but the smaller plug has no wire at pin 1
    Also pin 14 has a yellow and brown wire.

    How do I get my abs to light up and check light?

  17. #242
    Join Date
    Jun 2022
    Location
    Myrtle beach
    Posts
    1
    My Cars
    Z3
    Hey if anyone on here can help me I have a 1998 z3 with the 1.9 m44 I wanna swap in a m52 2.5 will I need to do all of this wiring if I got a ecu with ews deleted? Also if anyone can answer this please do the m44 that's in it crank but won't start I replaced the dme harness and cap and cmp but still no spark also got a ecu from Kassel performance with ews deleted and programmed to my vin I looked down in the ckp hole and see the teeth so I can't figure out why no spark even on my scanner no ckp activation only at random times

  18. #243
    Join Date
    Jan 2005
    Location
    Japan
    Posts
    54,655
    My Cars
    11/88 E32 750iL+98 E36M3
    post the question in the Z3 forum
    Shogun tricks and tips for the E32 series are HERE!

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