AEL Pedal Box

[quattro87]

Can anyone tell me if the potentiometer in the pedal box of a newer Jetta/Passat 1.9 TDI would work in an AEL application? I don't mean swap the pedal cluster out into an AEL car, but would the ECU from a 97 A6 AEL be happy with the signal from the pot of the 1.9 TDI? Does anyone know the resistance of the Pot used? I have a European AEL from a RHD A6 being shipped across the pond to the US, but because the pedals wouldn't work in my car, they weren't shipped. I now have to come up with something that will work. Any help would be greatly appreciated. Thanks

[5cylinderman]

The potentiometer for AAT/AEL TDi is the "old" type cylindrical model that attaches to the pedal with a very short cable. This was used from on TDi's circa '89-'00. The next generation TDi uses a potentiometer build into the throttle pedal. If you search for 2.5TDi into VW T3 transporter there was a guy on a forum in England that fitted one of these engines into his bus and did huge research into throttle actuation. It has been a few years since I played with the C4 A6, if I find anything else I'll send it on.
From memory he was able tyo use the later type pedal with the "older" ECU.

[quattro87]

Thanks. What I want to do as a project is put this 140hp AEL into a B2 chassis front drive coupe gt. There wasn't ever an early TDI in a B2 from the factory was there? I will have to look and see if I can find that thread you are talking about. I think that if I could come up with the old cylinder style, I could make something that would work in the B2, but the POT would have to be compatible with the AEL CPU. Since the only TDI's that have made it to the US are the Jetta/small VW type 1.9TDI versions, that is all I have to pick from in the wrecking yards. I have always heard that a 1.9TDI ECU can be reprogramed to run a five cylinder TDI, so I assume the the Pot in the pedal are going to be the same resistance, but different layout.

[ralleyquattro]

I have a complete 1T setup (same as AAT and AEL) with stand and pedal.

Let me know if you need it. The old style sensor from a 1.9 tdi has the same part number as the 5 cyl version BTDT.

[quattro87]

Thanks Martin. I guess the project is out of the bag and it's still in the planning stage. Didn't you end up going with a complete pedal assembly? That would be the way to go, but again I don't think there was any TDI factory in a B2. Is the parts you have the complete pedal assembly or just the throttle pedal and box with the POT? I have been meaning to get with you on some of my TDI questions, so expect an email.
So you say the old style 1.9TDI sensor number is the same as the I5 right? Does this mean that I could junkyard a late nineties jetta assemble and make it work?

[spink]

Thanks Martin. I guess the project is out of the bag and it's still in the planning stage. Didn't you end up going with a complete pedal assembly? That would be the way to go, but again I don't think there was any TDI factory in a B2. Is the parts you have the complete pedal assembly or just the throttle pedal and box with the POT? I have been meaning to get with you on some of my TDI questions, so expect an email.
So you say the old style 1.9TDI sensor number is the same as the I5 right? Does this mean that I could junkyard a late nineties jetta assemble and make it work?

I have seen the pedal sensor grafted onto old style pedals once or twice,i think tonksy did it on his berg cup car and also mike ghia did it on his old t3 van with an ael conversion.

[quattro87]

I figured that it had been done. Spink, you don't have any links by chance to Mike's T3 van build?

[spink]

I figured that it had been done. Spink, you don't have any links by chance to Mike's T3 van build?

hmm,not sure there is any pics of the pedal anywhere but i have seen it in person,he also fitted cruise control to it

Might be something in amongst this lot

http://www.audifans.net/fsearch-author-Ghia.html

or pm him on here,I think 'rs2' is his username

[quattro87]

I realize just how new to TDI's I really am when I have to ask how VAG implements Cruise using the pedal box. Do they actually move the POT/pedal to change the demand signal to the ECU?

[quattro87]

Thanks for the links. Learned a bit about CC and drive by wire on the TDI's. I now know enough to get myself in trouble.

[5cylinderman]

The T3 Transporter with the 2.5tdi that I referred to has just popped up here on the forum! Username is RS2 and his thread is titled AAN Engine transplant into VW T3.
It's a small world out there.

[ralleyquattro]

Thanks Martin. I guess the project is out of the bag and it's still in the planning stage. Didn't you end up going with a complete pedal assembly? That would be the way to go, but again I don't think there was any TDI factory in a B2. Is the parts you have the complete pedal assembly or just the throttle pedal and box with the POT? I have been meaning to get with you on some of my TDI questions, so expect an email.
So you say the old style 1.9TDI sensor number is the same as the I5 right? Does this mean that I could junkyard a late nineties jetta assemble and make it work?

Hey, I have the throttle box like this with pedal and sensor.
This could be bolted onto the firewall in a B2, that was my plan when the 4kq was on the chopping block.... with the B4 it was a bit easier.

Not sure on the Jetta/Golf if the assembly was part of the rest of the pedals or on its own like typ44/C4 cars.

Cheers

[ralleyquattro]

I realize just how new to TDI's I really am when I have to ask how VAG implements Cruise using the pedal box. Do they actually move the POT/pedal to change the demand signal to the ECU?

Crauise is done via the ECU, nothing to do with the pedal.

[quattro87]

That looks like I could make that stand alone pedal work. Like you say, just mount it to the firewall after first removing the type 85 pedal. Thanks for the pictures! Send me an email as to what you would need to get it Las Vegas. Do you suppose the AEL harness connector would even be the same for the pedal?