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View Full Version : Sputters when given gas and rough idle after turbo replacement



pgiuliano98
06-29-2016, 06:28 PM
So I got a used ko3 from a member on here and put it in today. I'm 99% sure everything is back together the way it should be.. When I turned it on for the first time it had a rough idle and died when I gave it gas. Now this happens... https://vimeo.com/172828758

After I give it gas the RPMs dive and I can feel the gas pedal pull towards the front of the car. Before putting this in I also tightened the wastegate so there were 3-4 threads left. At first I thought it was just the MAF... Anyone know what the f*ck is going on?


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Radskull1
06-29-2016, 06:35 PM
this looks and sounds like a TBA "Throttle body alignment" is needed

Radskull1
06-29-2016, 06:41 PM
has ur battery been unplugged for a while?

Dan[FN]6262
06-29-2016, 06:42 PM
check for boost/vacuum leaks.

pgiuliano98
06-29-2016, 07:15 PM
The battery wasn't disconnected and all vacuum lines should be in the same condition as before the swap. Could the wastegate be too tight and cause all this to happen?


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mikejones701
06-29-2016, 07:18 PM
Hey paz


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Dan[FN]6262
06-29-2016, 07:19 PM
no, it wouldn't cause that issue. Sounds like a giant vacuum leak.

could have possibly installed your MAF backwards if you have a aftermarket turbo inlet intake setup?

Radskull1
06-29-2016, 08:59 PM
6262;11723168']no, it wouldn't cause that issue. Sounds like a giant vacuum leak.

could have possibly installed your MAF backwards if you have a aftermarket turbo inlet intake setup?

everyone told me my car had a vacuum leak, other than like 1 person, who said to atleast try a TBA first off, Tried it, It was a TBA, same symptoms :) ^^^also it could be the MAF being backwards.

PsorianoPre99A4
06-29-2016, 10:40 PM
everyone told me my car had a vacuum leak, other than like 1 person, who said to atleast try a TBA first off, Tried it, It was a TBA, same symptoms :) ^^^also it could be the MAF being backwards.

lol When I installed a new TIP and Intake set up, my car was doing this when I installed the MAF backwards[>_<]

pgiuliano98
06-30-2016, 10:10 AM
Well that 1% of uncertainty I had = me forgetting to hook up the charge pipe... Everything is back together and running properly... Thanks for the replies


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Dan[FN]6262
06-30-2016, 10:11 AM
there was your giant ass vacuum leak. LOL