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Discussion Starter · #1 · (Edited)
01M to 02J transmission swap on my 2001 Jetta 2.0 (AZG) silver (DIY on Page 4)

WRITE UP AND PICS ARE ON PAGE 4

Well...I'm tired of this 01M business so I 've decided to do the swap. One because it's sensible and two because it will be fun.

The Jetta first went into limp mode a few months ago and since then I've followed some threads with suggestions and consulted some transmission specialists and valvebody shops. I first replaced solenoid #5 (bought from NAPA) which first popped up the code 00266. That briefly worked and then back to square one.

Then I went with the valvebody swap (new solenoids and wire harness shipped from Central Valvebodies in Oklahoma). Worked great for a week. Though it was promising and it soon went back to limp mode again. Replaced same solenoid with original VW one. Worked great for another week and then once again the dreaded limp mode:mad:.

And of course I check the ATF level the proper way with VAG-COM and all and replaced that extremely expensive fluid twice:rolleyes:.

So this is where I stand now with my wife's ride. I'd love to swap it since I know the motor will last a whole lot longer and the stick is just so much funner. I was able to sell my wife on the idea since I taught her how to drive the stick in my 98 Explorer Sport.

Everyone's ones doing TDI swaps. So thought I'd crash the party and bring the 2.0 to the game.

So sit back and enjoy the ride. More post with intial pics and wiring diagrams to come. Just don't have time right now since I'm about the leave work and go home to the family.

One question. Anybody have any thoughts on which tranny code would be best with the 2.0? Im thinking EGT or FBV. What do you intelligent people think?

WRITE UP AND PICS ARE ON PAGE 4
 

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Discussion Starter · #6 ·
Yall is pretty funny on this site:laugh:. Im thinking about getting the tranny from a 2004 Jetta 2.0 EGT. Think there'll be any fit issues? My guess is that it would work just fine or does the year matter as long as it is it's an a 99-05?
 

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Discussion Starter · #8 · (Edited)
Im not completely sure. I know I was told that the trans I was getting was going to match up just right. As long as the trans is from a 2L - 1.8T, you should be ok. If it was a VR6 trans, it won't match up.
Thanks for the idea even though you say you have no idea. Im going to stick finding a tranny from a 2.0 just to be sure.
 

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Discussion Starter · #9 ·
I was just looking through the Bentley in the coding section and saw that it not possible to recode the ECM to recognize my car as a manual because it is an AZG engine.:mad:

I thought I'd be able to just recode it, but maybe not. Is this true?

Is there a way around this or will I have get another ECM?
 

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I was just looking through the Bentley in the coding section and saw that it not possible to recode the ECM to recognize my car as a manual because it is an AZG engine.:mad:
Could you check if the AWW engine code it is possible?
 

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Discussion Starter · #11 ·
It shows the codes without any warning like mine. So I believe the AWW will be fine.

It's a 1.8 turbo right? what year? The year doesn't matter. I was just curious

Holla at me if you need a code. It has the code table. By the way if you dont have the Bentley you can get it from the library sometimes. That's where I got the one Im using
 

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I was just looking through the Bentley in the coding section and saw that it not possible to recode the ECM to recognize my car as a manual because it is an AZG engine.:mad:

I thought I'd be able to just recode it, but maybe not. Is this true?

Is there a way around this or will I have get another ECM?
I keep hearing this, so you'll probably have to change ECM. But that is the last step. You can get the car running and driving with your original ECM. You'll just need to change the ECM later. The only reason you'll need to do this is to get the check engine light out.
 

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It shows the codes without any warning like mine. So I believe the AWW will be fine.

It's a 1.8 turbo right? what year? The year doesn't matter. I was just curious

Holla at me if you need a code. It has the code table. By the way if you dont have the Bentley you can get it from the library sometimes. That's where I got the one Im using
Mine is also a 2001. I have the Bentley but I don't really know what I am looking for.
 

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Discussion Starter · #14 · (Edited)
The 1st attempt

This didn't fix it but I thought I'd put up the pictures from when I inspected and replaced the valve body just for reference in case anybody needs some pics. I purchased the valvebody from Central Valvebodies in Oklahoma. I tried the Kerma Mod too. Didn't help. Not saying this won't work for you but I believe my issue was more internal than external. It did work for some time for this guy (Check out link): http://oldforums.tdiclub.com/showthread.php?t=198950



A look at the valvebody


The manual shift lever


Backside










 

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Discussion Starter · #15 · (Edited)
This is my intial look at the car so far

A view of the engine bay


The relay panel under the driver's dash. 175 is the Park Nuetral Relay


175 Relay removed. With Blue connecter exposed


Connector unclipped from relay grid and slowly turn to reveal wires on backside. Wires are refered to on my homemade wire diagram






twisted around


The backside of the connecter on relay panel


moe to come. I have To go now
 

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Discussion Starter · #17 · (Edited)
The wires going into the connecter from the TCM, battery, Park Nuetral Relay.





Now let's take a look at the TCM and ECM connecters and wiring. And see what we're working with.

Air plenum removed


TCM left, ECM with 2 connecters right


TCM connecter removed, Left ECM connecter removed


TCM connecter




ECM Pins


Wires stemming from Left ECM connecter. The wiring is much different than TDI's that usually are the ones we hear about in the swapped so my rewiring is going to be a bit different
(Top Side)

(Bottom Side)
 

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Discussion Starter · #18 ·
Inspect TCM

I decided why not open up the TCM just to see if there was by chance a burnt circuit or something.

TCM out of plenum




Everything looked fine. I've have a good TCM for sale when I'm done with the swap among other parts
 

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Discussion Starter · #20 · (Edited)
This is the Bentley wiring for the 2001-2002 AVH and AZG Jetta/Golf 2.0 which is what my car has

This is the wiring for the starter and starter switch where the 175 relay (J226) will replaced by a 53 relay (J207)


This shows where the clutch vacuum vent valve will be wire to at pin #39 on the ECM instead of pin #46 or #66 like GdB points out for his DIY. Not wrong just different years and makes


I included these because they have diagrams showing the difference between an Auto and a Manual. I may end up removing all unnecessary wiring so I'm using this for reference. The key shows what is manual only or auto only



 
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