2G throttle body on a 1G?

[solson1041]

Hi guys, I've got a 93 tsi, and the throttle body shaft seals are no good and I've got a pretty big boost leak there. In my efforts to rebuild it, I managed to strip out one of the screws holding the shaft to the plate. I'm out at my apartment at college and don't have the capabilities to get this screw out. However, I do have access to a 2G Throttle body with good shaft seals. I'd like to get by on it till I can get home for Christmas break and rebuild this1G throttle body, as it has a bigger bore.

I noticed that the closed throttle sensor is replaced by a fourth pin on the TPS in the 2G, will this be read by my ECU? Also, what do I do with the 4th vaccum line that goes atop the TB? should I just block it off? And finally, I did notice that the coolant lines running to the TB are just a tad loose on the 2G and don't seal up right. Is there any way around this? I know I could "delete" the coolant to the TB, but I'm not too sure if that's something you should necessarily do. Any input on that would be appreciated.

In short, can my 2G throttle body go on a 1G tsi?

Thanks so much

 

[clipto]

A short answer is it would be kind of a downgrade anyways becuase the tb on the 1g is bigger then the 2g.As for fitment I never had to swap them so I am sure someone else will chime in.

 

[Archer Fabrications]

i think they are only interchangable on the 2g intake manifold. i put a 1g TB on my 2g with no issues. capped off all the top nipples cause i have DSMLink, Evap removed and EGR removed... im not sure about the 1g intake manifold to a 2g throttlebody... it should work as long as you have the right gasket. they look very similar to me, only difference really is that the top nipples are on the different side and the 2g is a smaller bore.

 

[solson1041]

they are interchangeable..... the 1g throttle body is bigger and therefore gives more throttle response then the smaller 2G although i find it odd that the 1g Throttlebody is bigger.. but if you look at the 1g TB elbow... its tiny as hell.. like 1.5 inch or something.

although i can not vouch for how the ECU will read it because im running DSMLink and also have my EGR and Evap deleted.. which means you can cap off ALL of the top nipples on the throttle body,

Thanks, yeah, I don't wanna put a 2G on, but it's my best option right now. I suppose I'll go slap it on and see what happens and run it for the next couple weeks till I can get home to my real garage haha.

Also, I do plan on doing the coolant line bypass while running the 2G TB as per this vfaq DSM: Top Ten FAQ. But again, that's a short term thing I'll put back when I can, seeing as though this whole ordeal is a bit of a bandaid.

Speaking of the EGR/Evap delete, that's actually what got me into this mess in the first place and I'd really just be happy with a car I can drive to work because motorcycles in december are a terrible, terrible thing.

Thanks for the quick input guys.

 

[Archer Fabrications]

http://www.dsmtuners.com/forums/newbie-forum/418675-evap-removal-help-writeup.html

 

[solson1041]

http://www.dsmtuners.com/forums/newbie-forum/418675-evap-removal-help-writeup.html

Thanks man, I really appreciate that. I'll take another look at it when I've got more time to sit down and do that again. Possibly tomorrow.

For the record, I put the TB on, and the car runs beautifully (compared to NOT running before at least ). It still smokes some, gas smoke. I know the plugs are fouled as hell from how it was running before, so I'll replace the plugs and check for another leak cause I'm sure there is one and go from there.

Thanks guys, this forum saved me so much.