Loss of power

[AlexRennieGti]

Hey guys new development with this issue. Came out this morning for work and started the car and warning light came on. Is it weird this kinda made me happy since it can point me in the right direction now 😂 so scanned it and got code P2138 which is throttle/pedal position sensor/switch D/E voltage correlation.

Anyone had this fault before ?

[muff1991]

Trust me.. I’ve been praying for the EML to come on too haha!

Get a new pedal and see how it goes mate.


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[AlexRennieGti]

Trust me.. I’ve been praying for the EML to come on too haha!

Get a new pedal and see how it goes mate.


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Where am I best too get a pedal from mate ?

[muff1991]

Personally, I’d just get a second hand one off eBay for £30 ish otherwise TPS for new.


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[AlexRennieGti]

They aren’t just out of golf the pedals are they when searching the part number it’s bringing up eos and tt ones too. Is it just a plug and play job ?

[muff1991]

I would type part number in and just get one that way I guess it doesn’t matter which car it’s from if it’s the same, I was told the latest revision part number for my 06 GTI manual is: 1k2721503am
If that helps at all.


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[AlexRennieGti]

Where can you find out the latest revision you can fit mate ?

[muff1991]

Where can you find out the latest revision you can fit mate ?

You can contact TPS or VW for the latest part number. But I got that part number from a mate a few weeks back who works at Audi so I would have thought you’d get given the same number.


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[AlexRennieGti]

I done a check on the accelerator pedal with my obd eleven scanner it’s weird it’s working when ignition is on but soon as start the car it’s only going too 20%

[muff1991]

That’s basically what mine does too but only really when weathers colder! I turn ignition on and can here throttle body doing what it should when I press the pedal.. as it all should! But when I plug vcds in and start the car the throttle pedal is showing it’s working where as the throttle body isn’t opening all the way! (I replaced TB but didn’t make any difference).

Throttle pedal defo sounds like it’s your culprit though mate! Might be worth just checking the electrical connectors/ plug and all that’s clean near the pedal before replacing though. I heard they can get a bit dirty and that and cause issues.


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[AlexRennieGti]

I’ve ordered one of eBay mate. £35 comes tested and with 30 day warranty so not bad. Should have it by Tuesday. Will report back once fitted

Thanks for your help mate

[muff1991]

I’ve ordered one of eBay mate. £35 comes tested and with 30 day warranty so not bad. Should have it by Tuesday. Will report back once fitted

Thanks for your help mate

Nice one... defo report back, let us know how it goes


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[AlexRennieGti]

Hey guys good news. Replacement peddle fitted. Been out a wee drive and issue is now fixed. Thank god. Now means I can focus on all the other wee niggles now like the wheel bearings that are away and the rattle from front suspension 😂 it never ends does it

[muff1991]

Hey guys good news. Replacement peddle fitted. Been out a wee drive and issue is now fixed. Thank god. Now means I can focus on all the other wee niggles now like the wheel bearings that are away and the rattle from front suspension it never ends does it

Good news mate! Literally always something that needs sorting on these lol but that’s part of the fun I suppose.


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[pudding]

Interesting!  I reckon the pedal potentiometers develop a dead spot, which the ECU can work around up to a point.....and then throws a code when it can't.   I think in VCDS you can plot the pedal movement in the graphs section.  You will see if there's a dead spot with that.  Same thing happens to in-tank fuel pumps.  Sometimes you can whack the petrol tank with a hammer, which will jolt the motor onto a different part of the commutator and hey presto, it starts!