Author Topic: TDI Auto Limp mode  (Read 699 times)

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killerb09

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TDI Auto Limp mode
« on: Oct 23, 17, 06:02 »
Here's a question to the masses for a '06 TDI wagon with Auto Tiptronic

I personally think I have a shorted wire somewhere or something.

Car runs/drives great, however won't shift up past 3rd.  Shifts 1/2/3 perfect.  manual shifting does not change anything.

Shift solenoid replaced along with wiring harness.  I've done a bit of research and it's got PO763

I also found a burned up fuse in the main engine box for the 40amp 3rd in from the passenger side.   Would these be related?

Any help/suggestions would be awesome as I get this bucket road worthy.   

aba16v

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Re: TDI Auto Limp mode
« Reply #1 on: Oct 23, 17, 07:20 »
Clear the transmission and ECU controller. If you disconnect the ECU in these (such as for tuning) sometimes they'll stop you from shifting into final gear.

killerb09

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Re: TDI Auto Limp mode
« Reply #2 on: Oct 24, 17, 06:22 »
I cleared the code and is hasn't come back, haven't been able to test drive it to see if it's shifting alright now or not. 

killerb09

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Re: TDI Auto Limp mode
« Reply #3 on: Nov 14, 17, 07:55 »
So minor update, Scanned with VCDS lite and retrieved a code for 00262 Shift Solenoid N90.  I was told that the previous owner replaced this solenoid with a new one however have no proof of it happening.

Would it be worth while to change out all the shift solenoids and hope it repairs the problem or look for another transmission that's good?  Any help is as always greatly appreciated.

Car only shifts up to 3rd gear then stops, shifts nicely from 1-3rd.




aba16v

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Re: TDI Auto Limp mode
« Reply #4 on: Nov 14, 17, 09:32 »
Did you clear the TCM?   I'd be looking for a manual swap.

witchcraftz

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Re: TDI Auto Limp mode
« Reply #5 on: Nov 14, 17, 09:46 »
You can do it yourself. Solenoids seem to only be "rated" for 100k km



Here's a kit
http://www.electricaladvantage.net/01mmastersolenoidkitwrostra.aspx
« Last Edit: Nov 14, 17, 09:47 by witchcraftz »

killerb09

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Re: TDI Auto Limp mode
« Reply #6 on: Nov 14, 17, 10:57 »
it's a $500 car, no real reason to spend $1000 on doing a 5spd swap in it when it's repaireable.  If the trans is shot I may look at it but likely would just part it out and get my money back.

I cleared the codes in VCDS under transmission.  Does that do it?

germanstyle

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Re: TDI Auto Limp mode
« Reply #7 on: Nov 14, 17, 15:25 »
I'm sure most are thinking the same thing here, but maybe stop buying $500 cars and grab something in the 4-5k range that will save you a lot of headaches trying to search out other people's problems.  :)

Toyota 4runner, Ram 3500

killerb09

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Re: TDI Auto Limp mode
« Reply #8 on: Nov 15, 17, 08:14 »
Some people smoke, drink or gamble their money away, I like to tinker with old cars and work on their issues.  It gives me a sense of satisfaction to have something that's broken, and fix it myself.


If you don't like my post or think I'm out to lunch, just ignore them, I'm sure there's even a function of the script that is "ignore user".





killerb09

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Re: TDI Auto Limp mode
« Reply #9 on: Apr 09, 18, 10:15 »
Minor update after some time not bothering with this car
Did a Ohm test at the TCM connector, all but N90 good showing within tolerances, open loop on pin #26(N90) which is narrowing it down to a broken wire.  If I hadn't had to go to work I would have continued to test the harness with my suspicion of a broken wire in the loom under the battery.   More to Follow soon.

killerb09

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Re: TDI Auto Limp mode
« Reply #10 on: May 02, 18, 12:12 »
Pulled the harness back under the battery box, located 2 chaffed wires(though insulation) and one which was for N90 Valve which was chaffed and corroded badly.  Using the meter I tested both sides of this area and it was good on one side and bad on the other signalling that the wire was broken. 

replaced all sections that I saw that were bad and tested again before closing it all up.  All good Ohm readings for all solenoids this time. 

Put it all back together and it fired up, used VAGCOM to clear the trans code and it hasn't come back yet.  I have been unable to road test this car as of yet but appears bad wiring may have been the culprit.

germanstyle

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Re: TDI Auto Limp mode
« Reply #11 on: May 02, 18, 12:52 »
Only took 6 months of diagnosis, easy fix.
Toyota 4runner, Ram 3500

killerb09

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Re: TDI Auto Limp mode
« Reply #12 on: May 02, 18, 13:10 »
Well not really 6 months, took only a few hours in reality.  The 6 months was due to it sitting in my driveway covered in snow while winter showed me what -35 feels like.  Turns out I don't like working on cars outdoors in winter.

germanstyle

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Re: TDI Auto Limp mode
« Reply #13 on: May 02, 18, 13:13 »
:lol: Fair enough, donít blame you there
Toyota 4runner, Ram 3500

killerb09

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Re: TDI Auto Limp mode
« Reply #14 on: May 03, 18, 08:41 »
Don't ever let anyone tell you living in Onterrible is a good go....I miss the Valley weather and driving 1 car year round.