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Old February 8th, 2018, 18:12   #1
Join Date: Feb 2018
Location: NY
TDI(s): 04 Jetta
Default Boost Problem

My 2004 Volkswagen Jetta TDI is shutting off at like 20mph because it's not getting the right amount boost I think. The previous owner said it would need a waste gate. I mentioned a waste gate actuator and he said it could be it. It's not getting the right amount of vacuum what could it be? In depth details please. And thanks in advance for the help.
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Old February 9th, 2018, 05:04   #2
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Join Date: Oct 2005
Location: Il.USA
Fuel Economy: 43/41/40

What do you mean by "shutting off"? Is the engine dying or are you experiencing over boosting? If you suspect the turbo actuator you will need a vacuum pump to test it; it should hold vacuum. A proper scan is also required before throwing parts at it. My actuator went out due to internal corrosion, but I was able to install a Garrett actuator along with a VNT software delete. P0299 was the DTC. I also changed the N75 on the firewall since it had sucked in the fragments from the defective actuator.
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Old February 9th, 2018, 07:03   #3
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Join Date: Mar 2011
Location: Northern MD
Fuel Economy: Race: 12mpg, Gandma:65mpg

YEAAAA, it shuts off? describe that more, you it restart no issue at all?

So any issues with boost leads to limp mode. you have more than one issue here

get a vacuum gauge and test all your lines and the actuator and dont throw parts at it at random.

please scan for codes too
Mongler98 is offline   Reply With Quote

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