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Old 12-10-2010, 02:34 PM
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Default Check engine light, will not shift PLEASE HELP

Hi,
1998 Beetle, 2.0L automatic.
Here is the trouble. I put the car in Drive, the indicator on the dash changes from P to D. The check engine light comes on momentarily and goes out. The indicator that stated D goes away and the car will not shift out of first when driven. Computer? I would make sense to me. Please let me know your thoughts and recommendations.
CHuck

Last edited by Gunner; 01-08-2011 at 01:16 AM..
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Old 12-10-2010, 02:50 PM
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You really need to see what the fault codes are first thing. If you don't have VCDS by Ross Tech, then find some one in your area who does and do a beer-scan exchange:

VWVortex.com - Vag-Com Locator searchable map style! Owners pm me your info requested in the thread

Without knowing what fault codes are flagged and what kind of information the ECM and TCM is receiving, everything is a wild guess that eats up your wallet.
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VAG COM @ $350 = sanity
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Old 12-11-2010, 04:29 PM
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Well a scan came up with 4 codes.
In order:
1. PO768 Shift Solenoid "D" electrical explanation
Open or shot cirvcuit condition
Possable cause: 1 poor elecrical connection 2. valve body damage 3. faulty shift solenoid

2. PO440 EVAP Canister purge regulator valve
Explanation
open or short circuit condition
possable cause
1. poor electrical connection
2. faulty canister purge solenoid

3. PO605
Internal control module read only memory error
explanation
failed ECM

4. P1580 Throttle actuator B1 Malfunction

well any advice for me now?
Chuck
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Old 12-13-2010, 01:55 PM
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Quote:
Originally Posted by Gunner View Post
Well a scan came up with 4 codes.
In order:
1. PO768 Shift Solenoid "D" electrical explanation
Open or shot cirvcuit condition
Possable cause: 1 poor elecrical connection 2. valve body damage 3. faulty shift solenoid

2. PO440 EVAP Canister purge regulator valve
Explanation
open or short circuit condition
possable cause
1. poor electrical connection
2. faulty canister purge solenoid

3. PO605
Internal control module read only memory error
explanation
failed ECM

4. P1580 Throttle actuator B1 Malfunction

well any advice for me now?
Chuck

Your evap emmissions valve is busted as well as an ECM fault and the car is in limp home mode, thats why it wont shift. Did you mess with any fuses lately? How does your battery look?
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Old 12-13-2010, 05:30 PM
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Originally Posted by savethebluths.org View Post
Your evap emmissions valve is busted as well as an ECM fault and the car is in limp home mode, thats why it wont shift. Did you mess with any fuses lately? How does your battery look?
Well that is good news. The EVAP valve is less then $100. I have not messed with any fuses. After the car started not shifting I did remove the cables from the battery in an effort to clear the faults, it didn't work, before I ran the codes. I will give that valve a good inspection. Ah, where is it?
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Old 12-16-2010, 06:00 PM
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Quote:
Originally Posted by Gunner View Post
Well that is good news. The EVAP valve is less then $100. I have not messed with any fuses. After the car started not shifting I did remove the cables from the battery in an effort to clear the faults, it didn't work, before I ran the codes. I will give that valve a good inspection. Ah, where is it?
Oh yeah the evap emmisions valve is like $19 at the dealership and is about a 15 minute install.


You're going to need to clear the codes to get it out of limp home mode but you need to do more digging to see what exactly caused the limp. I forgot what the OP said so I cant offer anymore help in this post
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Old 12-17-2010, 04:21 PM
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Originally Posted by savethebluths.org View Post
Oh yeah the evap emmisions valve is like $19 at the dealership and is about a 15 minute install.


You're going to need to clear the codes to get it out of limp home mode but you need to do more digging to see what exactly caused the limp. I forgot what the OP said so I cant offer anymore help in this post
Ok, I am just a little confused, but that is a natural state. I am hoping this is limp mode for this car. True it is stuck in what would appear to be 2nd or 3rd gear. However, it will just continue to rev as high as I want and never shift.
next is the EVAP Emissions Valve located in the right rear wheel well? If not where is it located? Eval Emissions vale is $139 at the stealer.
Thanks
Chuck
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Old 12-17-2010, 05:28 PM
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Fixed all code except P0768. I cleared all codes. still will not shift P0768 is back. I think it is going to be a trip into the transmission tp fix that solenoid. I have never been inside a transmission before. Does anyone have any resources that I should review before I do this?
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Old 12-18-2010, 05:00 AM
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Fixed all code except P0768. I cleared all codes. still will not shift P0768 is back. I think it is going to be a trip into the transmission tp fix that solenoid. I have never been inside a transmission before. Does anyone have any resources that I should review before I do this?
I dunno what dealership you're buying from but it was 18 bucks for me

Let me find the part number somewhere.
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Old 12-23-2010, 01:56 PM
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A couple more questions:

I would like to take some continuity checks on EV-4 (N92) to ensure it is the solenoid before I start going nuts and tear into the tranny. To save myself from wasting time looking around can anyone tell me where I can find the transmission case connector so I can take those resistance readings?
is this the connector?
Where is the fill plug?

On top of everything else, I think my Battery is shot. It is only 2 years old! But I think it was a cheapy from Advanced auto parts. Could that be causing the problem? hmmmmmm

More questions later, I’m sure.

Last edited by Gunner; 12-30-2010 at 04:49 PM..
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Old 12-25-2010, 05:19 AM
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Quote:
Originally Posted by Gunner View Post
A couple more questions:

I would like to take some continuity checks on EV-4 (N92) to ensure it is the solenoid before I start going nuts and tear into the tranny. To save myself from wasting time looking around can anyone tell me where I can find the transmission case connector so I can take those resistance readings?
Where is the fill plug?

On top of everything else, I think my Battery is shot. It is only 2 years old! But I think it was a cheapy from Advanced auto parts. Could that be causing the problem? hmmmmmm

More questions later, I’m sure.


Don't go futzing around with the TCM just yet, or the valve body for that matter. If you think your battery is bad then you need to replace it and clear the codes to see if that works.



If you still want to tear into it there is a really good PDF that explains it here.

http://ch4n.com/01m.pdf
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Old 12-26-2010, 07:43 PM
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The battery is good. I am taking it to the VW stealer tomorrow and have them diagnose the problem then I will fix want they found.
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Old 12-29-2010, 01:25 PM
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well the stealer said they would replace the tranny, because they don't fix solenoids, $3500 HAR! So it looks like a trip into the transmission.
For all you experts,when I drop the pan and take out the filter can I get to the solenoids without removing the valve body? Also, if I do need to remove the valve body, does that transmission have ball check valves? I don't want to chase balls all over the garage and figure out where they go.
Thanks
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Old 01-02-2011, 01:05 AM
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Got the car home. Took out the airbox to gain access to the case connector. I did resistance checks on all the soleniods, all passed. So I cleaned the contector with some contact cleaner for good measure and plugged it back in. Today I dropped the pan on the tranny. The fluid was DIRTY and I mean reaaly dirty. Nothing out of the ordinary other than that (no parts or pieces of parts stuck to the magnet or laying in the bottom of the pan. So tomorrow I'll fill it up with nice clean ATF and see how the tranny runs with clean ATF.

In my opinion it is looking more and more like the TCM.

As always, if you have a thought on this I welcome the input.
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Old 01-02-2011, 02:37 AM
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Just started following the thread today...looking forward to what you find.
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Old 01-02-2011, 03:25 AM
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Just started following the thread today...looking forward to what you find.
Me too, hope it works!
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Old 01-02-2011, 06:16 AM
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Are you shifting out of first yet?
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Old 01-02-2011, 10:55 PM
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Originally Posted by savethebluths.org View Post
Are you shifting out of first yet?
I am just about at my wit's end on this. I put the filter and pan back on, put in the proper amout of ATF. still the same. I'm thinking that the trouble is not in the tranny because resistances checks were good and there were not any parts in the pan. I guess I'll let the stealer run the wiring test and pay the $300 unless someone has a better idea.
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Old 01-02-2011, 10:56 PM
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Just started following the thread today...looking forward to what you find.
I'll put all the gory details here.
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Old 01-02-2011, 10:57 PM
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Me too, hope it works!
Thanks
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