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Vacuum hose leak after P1136 "Too Lean" code—How do I get to the hose?

Audi TT The Audi TT line, in both the coupe and roadster combines Audi's All Wheel Drive performance with the feel of a European sports car.

Vacuum hose leak after P1136 "Too Lean" code—How do I get to the hose?

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Old 05-03-2016, 10:02 PM
1st Gear
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Join Date: May 2016
Posts: 2
Exclamation Vacuum hose leak after P1136 "Too Lean" code—How do I get to the hose?

Hey all. Recently my 2001 TT (225hp) gave me a check engine light and a P1136 code ("Long term fuel trim add. Fuel B1 system too lean.")

I was way overdue in swapping out my air filter, so I did that and cleaned the MAF sensor, but I had read that most likely this error was because of a leaky vacuum hose. Sure enough, I found the problem. It was sucking air pretty hard, but the problem is, it's wrapped in some kind of heat protection that's riveted together.

What is this part? How do I replace it without destroying the heat wrap?

Thanks, all!
 
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