DIY - Removing and cleaning a MKIV throttle body (throttle valve control module)

[bikerkid9069]

so i decided at 160,000 my 2.0L throttle body could use its first cleaning. took the TB out and used Qtips, rags and that CRC TB cleaner like everyone recommends.. and i hooked everything back up and started my car. and i let her run for a good 10-15 minutes at idle. the idle was at 12-1400 rpms. then i took her for a short cruise and it couldnt seem to decide where it wanted to idle. sometimes at 800 some at as high as 1800.

so i went back to the garage and took everything apart made sure it was all tightend down and all the vacuum lines were connected and everything and its still doing it...

any suggestions? is it time for a new TB?

[Veedub_junky]

FYI - one of the 24v guys did a DIY for servicing/cleaning the internals of the DBW TB. Could be useful to some folks in here:

Cleaning TB Internals (DBW)

[LY3D GLI]

on my 12v, when i disconnected the upper coolant hose, coolant spewed up. thank god i didnt drive the car for like 20 hours. what do i do?

and yes i know this thread hasent been posted on for a couple of months.

[mwurman]

Here's pics from my 24v TB. This was after 87,500 miles!

[LuEdaGreat]

Love this diy!!!!

[tojones]

Great DIY. I tried it, it worked well for cleaning the TB, I even noticed an increase in power and responsiveness. But, it turns out I have a MAF sensor issue.

[VolodkaVR]

OP, who's got more vortex respect you or Dan Reed?
Great write up, thanks for taking time to do it.

[2003 VW GTI VR6]

I did this just this past weekend. I was replacing the stock air filter with a K&N anyway and figured I'd give it a shot. This info helped a lot. Probably wouldn't have done it or even thought to do it without this. The main thing I noticed is a little smoother engine operation at low RPM. Easier to shift into 1st slowly & smoothly. Thank you for the info!

[resevil83]

So what modle vag-com did you use? Which one is least expensive that I can buy for this purpose? I noticed Ross-Tech offers one. I was going to get this http://www.ross-tech.com/vag-com/hex-usb+can.html

but then noticed some on e-bay for less than 20.00.
http://cgi.ebay.com/Audi-VW-Seat-Sko...item2a0e3e4119

There's different version numbers which get me confused on compatibility.

[JettaWolfGT]

Superb DIY, we can enjoy our cars because of things like this DIY it makes us bond with the car.

[Hedgehodge]

Maybe I missed it but I wanted to make sure. When adjusting the TB can you just use your APR Chip "Throttle Body Adaptation" option to do this for you or do you still need a vagcom or the like? I know I used this option once I replaced my MAF, sounds cool heh.

v/r

[Guillotes]

Hello all, I have a problem with my car and I hope someone can help me, is a Seat Cordoba 1.6 SR year 2001 with engine code AKL. It's the same engine as the Golf and Audi A3. My problem is that rpm are not stable. You can watch this viedeo with failure, and I turn the air conditioning the rpm drop by half.

http://www.youtube.com/watch?v=NLk0IYVxH-o

Greetings to all and erpero someone can help me.
Guillotes!

[Hedgehodge]

SUPER EASY on 1.8t, mine was on the pass side near the front bumper and was only attached by the two hoses and two clips and 4 bolts. I also put it back together and just didnt put back on the (sorry im not good with terms) big hose and i put my car in the on position but not on and then floored it and it opened the flap to see how good I cleaned it.

Thanks a ton

V/r
Hedgehodge

[fixitmyself]

I think that I might have broken one of the servo's. During cleaning the butterfly valve got pushed a little and opened a bit. Now with my car back together....it won't accelerate at all when I depress the gas pedal.

-update-

My EPC light is on and my (I think brake pad warning....triangle with ! and an arrow circle around it) and the car seems like it's in limp home mode. Sheesh.

[chillywilly521]

GREAT write up and thanks so much. This was a really easy DIY to follow.

This completely fixed my issues and the car is now running better then it has in 3-4 years. I had never done this DIY and with 2001 Jetta GLX with 125k my TB was really dirty. I also notices that my intake tube was not connected correclty to my airbox, and I'm sure that didn't help. I not only cleaned the TB but also sprayed the MAF with the special MAF spray. No more EPC light or ABS light. I also did NOT execute Step3 since I didn't have a vagcom and the car ran perfect right after start up and had no issues, so this step really isn't necessary.

Thanks AGAIN!!!!

I have before and after pic's but need to fig out how to post

[RDIRTYTOO]

i coulda sworn someone said also if you just turn the key on so all your dash lights u can just floor the gas pedal for a while and that will do the adaptation too is that true?

[garretsoccer2]

i coulda sworn someone said also if you just turn the key on so all your dash lights u can just floor the gas pedal for a while and that will do the adaptation too is that true?

No.

[hfiles2011]

excellent thread. thank you.

[katxox]

The pictures don't show! Any help?

[Ponto]

The pictures don't show! Any help?

Pictures are likely gone, old thread is old. So broken links...

[GLIxSTEVE]

Pictures are likely gone, old thread is old. So broken links...

right click broken IMG, copy URL then Paste and Go....works for me, I'm on google chrome

[Ponto]

My mistake...

[35i 2000]

wow this is a great write up!

thanks mate!

[filthwagen]

thank you for this