Clutch switch HELP!!!!

[garytightpants]

So I just wrapped up a manual swap in my b5.
I followed the clutch switch DIY here
http://www.audizine.com/forum/showth...eed-Swap-(DBW)

At first it seemed to work, but it is acting like the clutch is depressed even when it is not.
My rpms will only go up to whatever I set my 2-step to with maestro whether the clutch is depressed or not, even when the clutch switch is unplugged, it activates the 2-step even at partial throttle. It also is starting without having the clutch being depressed.

I followed the DIY exactly, I ran the red/green wire on the factory clutch switch to the red/green wire on pin #39 on the Ecu. I then t-tapped the other wire (black/blue) on the clutch switch into the black/blue wire on the brake light switch.

Any input is greatly appreciated, as I want this to work correctly both for the cruise control and 2-step functions


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[garytightpants]

Halp plz!


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[Nollywood]

You've wired the clutch switch exactly how you should - I think.

You added the wired from pin 39 on the ECU connector to pin 13 on the white chassis connector under the ECU? Have you also confirmed the white connector coming FROM the car has a wire in location 13?

Or did you wire from your clutch switch directly to pin location 39 on your ECU?

Which clutch switch did you use? It looks like the brake lamp switch, but it operates differently. While the brake pedal switch contacts are open in the pedal up position, the clutch pedal switch contacts are open when the pedal is depressed.

You probably know all this, I'm just going over what could have been missed.

[bhusted]

Have you checked the cruise control bits using VCDS?

http://wiki.ross-tech.com/wiki/index...asuring_Values

[garytightpants]

You've wired the clutch switch exactly how you should - I think.

You added the wired from pin 39 on the ECU connector to pin 13 on the white chassis connector under the ECU? Have you also confirmed the white connector coming FROM the car has a wire in location 13?

Or did you wire from your clutch switch directly to pin location 39 on your ECU?

Which clutch switch did you use? It looks like the brake lamp switch, but it operates differently. While the brake pedal switch contacts are open in the pedal up position, the clutch pedal switch contacts are open when the pedal is depressed.

You probably know all this, I'm just going over what could have been missed.

i used the factory b5 clutch switch from 2001 awm parts car, along with the engine harness from the manual car. i did pull the connectors apart and verify that the red/green wire from pin #39 on the ecu goes to the pin #13 on the white connector. i added the male connector to pin #13 in the white plug in the body harness and ran it to the red/green wire from my b5 clutch switch. i then t-tapped the black/blue wire from the clutch switch into the black/blue wire in the 4-wire brake lamp switch. i made sure all of them are adjusted properly against the pedals. it also makes no difference if i unplug the clutch switch, it still acts as if the clutch is depressed.







in the last pic with the connectors, the black 2-wire connector on the right was also connected to a switch of some sort on the side of the clutch pedal that i had never seen before. any idea what it could be? ill try to get pic in a few when i get to the shop

[garytightpants]

Have you checked the cruise control bits using VCDS?

http://wiki.ross-tech.com/wiki/index...asuring_Values

i did not check that yet.

[Nollywood]

I would check the switch operation with a multimeter. At this point, you can't rule out a bad switch, with the contacts permanently open.

[garytightpants]

I would check the switch operation with a multimeter. At this point, you can't rule out a bad switch, with the contacts permanently open.

Will do.


A little update, the cruise control functions 100% as it should, but I can still start the car without the clutch depressed, and with 2-step enabled (using maestro) it will only rev to whatever I have it set at.

I forgot to take a pic of the other switch under there

[walky_talky20]

Starting the engine with clutch pedal pushed/not pushed has nothing to do with this. That's an entirely different switch and circuit that the ECU doesn't care about.

When you say "cruise control functions 100%", does that mean that you successfully set the cruise, then were able to cancel the cruise merely by tapping the clutch pedal slightly (ie: without RPM increase)?

[garytightpants]

Starting the engine with clutch pedal pushed/not pushed has nothing to do with this. That's an entirely different switch and circuit that the ECU doesn't care about.

When you say "cruise control functions 100%", does that mean that you successfully set the cruise, then were able to cancel the cruise merely by tapping the clutch pedal slightly (ie: without RPM increase)?

Yes, I drove the car and was able to set cruise control and have it cancel just by depressing the clutch. I was very surprised.
I'm not having any rev hang issues or bogging issues that people usually have when they don't have the clutch switch with the swap.

The issue I'm still having is that with 2-step enabled, it will do it whether I bring the rpms up to 3200 slowly at partial throttle, or if I go wot and it does it with the clutch depressed and not depressed and unplugged.

[VanCityA4Q]

Stupid question maybe, have you changed the coding in your trans module from auto to manual with VCDS?


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[Nollywood]

i used the factory b5 clutch switch from 2001 awm parts car, along with the engine harness from the manual car. i did pull the connectors apart and verify that the red/green wire from pin #39 on the ecu goes to the pin #13 on the white connector. i added the male connector to pin #13 in the white plug in the body harness and ran it to the red/green wire from my b5 clutch switch. i then t-tapped the black/blue wire from the clutch switch into the black/blue wire in the 4-wire brake lamp switch. i made sure all of them are adjusted properly against the pedals. it also makes no difference if i unplug the clutch switch, it still acts as if the clutch is depressed.







in the last pic with the connectors, the black 2-wire connector on the right was also connected to a switch of some sort on the side of the clutch pedal that i had never seen before. any idea what it could be? ill try to get pic in a few when i get to the shop

Clutch safety switch. European cars didn't have this feature, but I believe that's what it is. It's in your starter circuit, so nothing to do with your ECU.

Have you checked the operation of your clutch switch (the black one with vacuum vent)?

[garytightpants]

Stupid question maybe, have you changed the coding in your trans module from auto to manual with VCDS?
Yes, that was one of the first things I did before the first start.

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Clutch safety switch. European cars didn't have this feature, but I believe that's what it is. It's in your starter circuit, so nothing to do with your ECU.

Have you checked the operation of your clutch switch (the black one with vacuum vent)?

I mean, the black one with the vent is the only on I have right now and it is kind of working. It shuts off cruise control like it's supposed too, and it triggers the no-lift shift/2-step like its supposed to, just at the wrong times as well as the right times