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Old 03-16-2004, 08:09 PM   #1
erice1984
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Member#: 11778
Join Date: Oct 2001
Chapter/Region: MWSOC
Location: Illinois
Vehicle:
1980 VWRabbit Diesel
w/AAZ Swap

Default 4EAT to 5MT swap?

Is this possible and how much.. ??
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Old 03-16-2004, 08:37 PM   #2
Zephyr
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Join Date: Dec 2000
Location: Central NJ
Vehicle:
2001 I've wired a
Few cars in my day

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Yes. Read the FAQ's at the top of the forum.

Cost will be whatever you can pick up a transmission, clutch and flywheel for plus the cost of the installation. Clutch and flywheel are about 6-800 depending on what you want and the transmission really depends on what transmission you want to run in the car.

Z
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Old 03-18-2004, 10:17 AM   #3
Boost4U
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Join Date: Mar 2002
Location: Montreal
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1998 2.5RS
WRB

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few wiring issues are;

1. light wiring from your new MT pedal box
2. reverse lights
3. you starter interlock(you need to trick the ignition into thinking its in PARK) not very hard
4. key capture solenoid should be unplugged so that it won't grab your key!

e-mail me if you have any more detailed questions

-chris
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Old 03-19-2004, 12:14 AM   #4
serious
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I'm in the process of doing this right now. You'll also want to removal the a/t wiring harness and the shift computer too. I have the 5mt wiring harness, so i'm just splicing that into the car's harness and hopefully it will work without issue.
I'm pretty sure the brake pedal switch is the same for the manual and auto cars, so you should be fine there. There is some kind of switch on the clutch. I think it's optional if you want to install this. I might just because.
I would like to know more though from anyone who has done it so i don't mess up my car.
Thanks
Brent
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Old 03-21-2004, 04:03 AM   #5
whtlegacy
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Join Date: Jun 2003
Chapter/Region: MWSOC
Location: Cleveland
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2004 WRX Wagon
DRZ400SM

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search my username for info on this. it will end up costing you $2000-$3000 assuming you're paying for labor.
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Old 03-21-2004, 08:34 PM   #6
Hurley 2.5 WRS
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Chapter/Region: RMIC
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2001 Impreza 4.7
Blue Ridge Pearl

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hey erice, ive got a 2000 rs 5spd tranny with 40k on it im selling. also, have and act street clutch and unorthidox flywheel for the rs. i think that they are the same as the impreza Ls. let me know if you want any of it.- willing to ship
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Old 05-06-2004, 10:42 PM   #7
xtorted-legacy
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1995 Impreza L
Brilliant Red

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still for sale?
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Old 09-16-2018, 02:43 AM   #8
Elew2005
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Vehicle:
2006 Forester

Default 06 forester 5mt swap

I have an 06 forester that I have swapped from a 4eat to a 5mt, now everything works great the only problem is i now have a CEL light and cannot check this. Since the swap everything works except there is no communication from my scanner to the data port. Everything works great speedo, no high idle, no 4k rev limit everything is good 3xcept the communication at the data plug

Does anyone have any idea on qhat the problem is or how I can go about fixing it
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Old 10-09-2018, 06:42 PM   #9
silverbullet55
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PSM

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Quote:
Originally Posted by Elew2005 View Post
I have an 06 forester that I have swapped from a 4eat to a 5mt, now everything works great the only problem is i now have a CEL light and cannot check this. Since the swap everything works except there is no communication from my scanner to the data port. Everything works great speedo, no high idle, no 4k rev limit everything is good 3xcept the communication at the data plug

Does anyone have any idea on qhat the problem is or how I can go about fixing it
I believe you need to leave the TCM unplugged.....


PM sent as well
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Old 11-10-2018, 02:58 AM   #10
John.DB
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Hey guys
Is it possible to swap the JDM V4 4.44 MT into my USDM without much difficulty?
There is a guy near me selling one for a reasonable price (Or at least reasonable in my eyes), and included is an ACT clutch and flywheel, all the axles, and the rear diff.
Also, sorry if it seems like a newbish kind of question. I literally just created an account and am still lacking a bit in the knowledge department when it comes to swapping things.
One other thing: The current transmission is a 4EAT.

Last edited by John.DB; 11-10-2018 at 03:01 AM. Reason: Addition of text regarding 4EAT.
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Old 11-11-2018, 08:33 PM   #11
Legosnsnails
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Go to a junkyard and get: tranny, pedals, wiring harness, probably a new piece of interior trim that covers the shifter if theyíre different for manual vs auto, blah blah. Do it. Itíll be fun once it starts up and youíll learn a lot 👍
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Old 11-25-2018, 12:29 AM   #12
thebrendo
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Ive been researching for weeks trying to get info on my swap. Im hoping you guys can clear some things up or point me to a thread i somehow missed

I have a 2002 ImprezaTS with an auto trans, i also have a 1997 impreza wagon with a 5mt. I should have all the parts to move the 5mt into my 02 bugeye. I just want to know if im gonna have wiring issues jumping between generations, speed sensors etc. The only info i can find is people swapping newer transmissions into GC models, but not the other way around.

has anyone put a GC 5mt into an GD 4eat impreza?
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Old 11-26-2018, 06:41 PM   #13
r.a.m.
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Location: Ontario
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1999 Impreza OBS

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I did it at the beginning of the month. If you can get your hands on a parts car it'll be loads easier. Don't try to swap looms (it was a waste of time and I gave up). Mechanically its pretty well LEGO. Wiring wise, starter, shift lock (the key gets stuck) and speedo are all you NEED. Back up lights are nice though. Dm me if you have questions. I did it on a 99 with 04 parts btw.
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Old 12-22-2018, 09:50 PM   #14
battleloyale
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Location: North East
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1995 Impreza
Green

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I'm currently looking into doing this to my Loyale. My previous 95 GC had the 4eat, current 92 Loyale has the 3at. Im interested in swapping in a dual port 2.2l with 5mt and awd drivetrain. From what I've been reading, same generation swaps should be pretty easy, and inexpensive relatively. Obviously as previously stated sourcing the correct parts is the hard part, besides the wiring. As for reverse lights, I'd bet you could wire in some aftermarket standalone lights for reverse. (if you prefer function over form, that is)
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Old 07-20-2019, 03:50 AM   #15
Fozymandias
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I’m trying to finish this 4EAT to 5MT on my 2001 JDM Forester but hitting issues with the speedo and the neutral position sensor. Mechanics were fine, reverse lights, key interlock and ignition were fine but no matter what I try I can’t get speed to the cluster.

5MT was from a manual Forester of the same year.

Neutral position sensor on the gearbox is also an issue - auto and manual were wired in reverse - one looks for voltage when closed and not when open and the other one is the opposite.

One of these (speedo, neutral sensor) or both is causing my car to run like crap, cut out and run too rich so I need to sort it ASAP. I have tried the Auto ECU and a manual one, both with the identification pin grounded and have tried with and without the TCU plugged in - nothing makes a difference to the rough running.

Any help appreciated!!!
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Old 08-13-2019, 03:17 AM   #16
Fozymandias
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Bump on this - can anyone who has managed to get their speedo working after a manual swap please let me know what you did with the speed sensor wires? Iíve tried two or three methods mentioned on various forums/threads but none of them work

Quote:
Originally Posted by Fozymandias View Post
Iím trying to finish this 4EAT to 5MT on my 2001 JDM Forester but hitting issues with the speedo and the neutral position sensor. Mechanics were fine, reverse lights, key interlock and ignition were fine but no matter what I try I canít get speed to the cluster.

5MT was from a manual Forester of the same year.

Neutral position sensor on the gearbox is also an issue - auto and manual were wired in reverse - one looks for voltage when closed and not when open and the other one is the opposite.

One of these (speedo, neutral sensor) or both is causing my car to run like crap, cut out and run too rich so I need to sort it ASAP. I have tried the Auto ECU and a manual one, both with the identification pin grounded and have tried with and without the TCU plugged in - nothing makes a difference to the rough running.

Any help appreciated!!!
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Old 08-22-2019, 04:01 AM   #17
MarTiN_FloReS
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Member#: 395434
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Chapter/Region: SCIC
Location: California
Vehicle:
1997 Impreza Outback
red ish?

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I can give you some info on your neutral position and speedo issue.

The neutral position switch gets its power from the same circuit that powers the ecu. To wire it up as close to a manual would be done, You would need to bridge the starter circuit on the harness plug that goes to your inhibitor (I assume you've already done this) then wire the revers light switch into the same plug. After all that has been set up, you would need to create a new circuit for the neutral switch.--Splice into the (+) wire from ECU power, rout the wire through your firewall to the NPswitch harness to the switch itself, then take the output back through the firewall to the NPswitch pin at the ECU.

The fuel cut you're getting is most likely because your ECU isn't getting a VSS signal. The 4eat probably had an internal VSS, thus isnt wired into the 5mt VSS. You'd have to find the VSS signal wire that lead from the TCU to the ECU then wire in your 3 or 2 wire VSS to that.

This is from my experience swapping a 02 WRX into a GF impreza. Of course for your car you'll need to double check your FSM for the correct wiring for your car!

Hope my info will come in handy.

Last edited by MarTiN_FloReS; 08-24-2019 at 12:45 AM. Reason: Uhhh
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Old 08-22-2019, 04:06 AM   #18
Fozymandias
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Quote:
Originally Posted by MarTiN_FloReS View Post
Not sure if you have resolved your issues since your last reply but, I can give you some info on your neutral position and speedo issue.

The neutral position switch gets its power from the same circuit that powers the ecu. To wire it up as close to a manual would be done, You would need to bridge the starter circuit on the harness plug that goes to your inhibitor (I assume you've already done this) then wire the revers light switch into the same plug. After all that has been set up, you would need to create a new circuit for the neutral switch.--Splice into the (+) wire from ECU power, rout the wire through your firewall the the NPswitch harness to the switch itself, then take the output back through the firewall to the NPswitch pin at the ECU.

The fuel cut you're getting is most likely because your ECU isn't getting a VSS signal. The 4eat probably had an internal VSS, thus isnt wired into the 5mt VSS. You'd have to find the VSS signal wire that lead from the TCU to the ECU then wire in your 3 or 2 wire VSS to that.

This is from my experience swapping a 02 WRX into a GF impreza. Of course for your car you'll need to double check your FSM for the correct wiring for your car!

Hope my info will come in handy.
Many thanks for the response man - appreciated! I finally got it sorted last week actually. Decided to ignore the various DIYís and go back to basics - did pretty much as you said.

NPS now wired straight to the ECU and VSS Power, ground and signal to the ECU then ran an extension of the signal wire from the ECU straight to pin 13 of the TCU plug - all good now (finally!!!)
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