riddle me this!!

[Flygti3.2]

Have some issues with my 3.2 L swap into my MK2 GTI. Here is the readout from the Vag Com scan. Car has stock GTI column, no DSG, no AWD, no ABS, what can be done with this to get the car out of limp?


Here they are........The speedo works BTW. If you clear codes, it pulls to redline a couple of times, and then the speed sensor code is thrown. Brings redline down to 5500.

VAG-COM Version: Release 303.1

Control Module Part Number: 022 906 032 DR
Component and/or Version: MOTRONIC ME7.1.1G 5545
Software Coding: 0000122
Work Shop Code: WSC 01236
4 Faults Found:
18034 - Powertrain Data Bus: Missing Message from TCU
P1626 - 004 - No Signal/Communication

16885 - Vehicle Speed Sensor: Implausible Signal
P0501 - 004 - No Signal/Communication

18036 - Powertrain Data Bus: Missing Message from Steering Angle Sensor
P1628 - 008 - Implausible Signal
18044 - Powertrain Data Bus: Missing Message from Airbag Controller
P1636 - 004 - No Signal/Communication

[Tuna]

Re: riddle me this!!

Ok, I have no idea what i'm talking about but.....sounds like maybe you need to terminate some connections? Let it think there's something there that isn't?

Easier said than done i'm sure, and you may have already done that.

[R-Audi]

Re: riddle me this!!

Sounds like you need some resistors wired into your connections that are missing..unless they just arent hooked up properly.

[Flygti3.2]

Re: riddle me this!!

The tranny connection for sure isn't hooked up because there is no DSG in my car. The steering angle sensor I have no idea on. It that relates to the column or something in the driveline. The VSS I think can be fixed and the airbag program should be able to be removed don't you think?

[Boy Racer]

Re: riddle me this!!

This is a tough one... perhaps a non DSG ECU would be easier but you will still be faced with problems from the sensors used for the ESP/ traction control type systems. Speed sensor might be able to be fixed though with an abs type wheel sensor and wheel.
How about an older Vr6 ECU or you may just want to go standalone engine management.

[Flygti3.2]

Re: riddle me this!!

I've been told Standalone is not the way to go with this engine and a 12V ecu is a waste of time too. Cam cleared the codes today and it ran fine for about 10 minutes. Although!! the TCU code came back right away but he drove it at full power and to 7000 rpm with that code thrown. Only after the VSS code came back did the car go into limp again. This leads me to believe there is realy one code that is holding me back and that's the VSS. BUT!!!! the VSS is working because the speedo is working.

[Boy Racer]

Re: riddle me this!!

Well hopefully you can figure things out. It surprises me that the TCU wouldnt cause limp (it certainly does if there is a TCU fault code) but maybe lack of comms is not considered the same. The VSS issue however, are you sure the dash signal from the ECU originates from the same sensor as the one that is throwing the code? I guess thats where to look next and by now you are probably 4 steps ahead.. kinda tough to diagnose this type of thing or offer reasonable suggestions on a forum!

[Flygti3.2]

Re: riddle me this!!

Hey anyone that has imput or ideas is welcome at the moment. I very much agree with your above statement. Driving out here to Calgary today I got a chance to check the odometer on the test sections. I found that the speedo is out about 10-12 km/hr and the odo is spinning 1.2 k's for every test km section. So! this leads me to believe the cluster might not be sending the right signals.

[dubCanuck1]

Re: riddle me this!!

I'm going to go with this...

16885 - Vehicle Speed Sensor: Implausible Signal

I'm not sure what the TCU is. Not like I have a TT sitting in the back yard. Transmission Control unit? The ECU for your tranny? Do you have tiptronic?

The reason your odometer is out is that the car that your engine came with had 17" wheels on it with adequate rubber (something bigger than a 30 profile). Your tranny is spinning more, as is your VSS for every tire rotation of your "little" tires. This reports as more mileage and higher speed than you're actually doing.

The fix might be to get another VSS that was built for a VR6 that has tires closer to your size and is also compatible with your ECU and cluster.

Have you passed it by Cam? I figure he'd have a grey-matter-loaded answer.

[Flygti3.2]

Re: riddle me this!!

I threw this by Cam and he told me he has changed the VSS out 4 different times so far looking for a better match.

[dubCanuck1]

Re: riddle me this!!

Maybe what PunkassJim is doing can be converted to your application....

http://forums.vwvortex.com/zerothread?id=2643360

[Flygti3.2]

Re: riddle me this!!

Sweet! thanks for the link.

[Flygti3.2]

Re: riddle me this!!

So I haven't updated this in a while so here goes nothing. I am researching the idea of reflashing the ecu with a NA 6spd program. THis would allow us to completely delete the dsg tranny program, hence take car of the TCU coding issue. So far EIP sounds confident this can be done by them. So I think after I get back form Colorado I will overnight my computer to them ands have this done.

[Flygti3.2]

Re: riddle me this!!

So I had a chance to visit a shop in Denver and have Jeff Moss ( owner of Torque Factory ) work on my software problems. We loaded the R32 program into my ECU and it accpeted the program, but when we went to start the car, the fuel pump would not come on. The car cranks but no fire. He thinks there is a difference in the wiring of the FPR between the R32 and TT 3.2. Do you think VW would go through all that trouble to make a different set up for basically the same car??

Edit: only one fault code came up with the R32 program and that was emissions vaccum. No more TCU or VSS codes.