Question about 2006 Volkswagen Jetta
My question is can you run the car without either one hooked up. it seems to run fine unhooked i just wanted to make sure it would not mess anything else up!I have a 2006 TDI jetta with the BRM engine. i have had the mass air flow sensor replaced, something on the turbo? and now thay want to repalce the egr valve. does it ever end. They wanted $1050 to replace the EGR valve for parts and labor! what a rip off the part is only $275 and it took me 1.5 hours to take it off to clean it my self and i have never done one before. I learned that to check to see if this is the problem unplug it and if it runs better theres your problem, same thing with the mass air flow sensor. and dont waste your time cleaning either one as it will only be a temporary fix. as i tried it on both and lasted about a week! thanks for any info!
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Posted on Jan 02, 2017
SOURCE: 2006 Jetta TDI Black SMOKE
"MAS" sensor, thank you...when you unhooked it you "faulted" the ECM, returning to "limp back" mode...Injectors go wide open...fouling the MAS, and possibly others and the problem occurs again...and again...It runs OK when you're on the interstate because you have max air pressure in the plenum-tract. I'm afraid you'll continue this unless you spend the money to have it diagnosed. I do NOT recommend the dealer, maybe a local mechanic with diesel/import exp?
P.S. I believe you have more than one filter...try running Premium Diesel if available in your area for a couple tanks.
Posted on Jun 27, 2009
Sounds like your injection pump timing is off, an injector is leaking or a bad seal on your IP.
VW dealers have a horrible reputation when it comes to TDI's. Check out the posts over at www.tdiclub.com Those guys are very knowledgeable - and the first thing they'll tell you is don't take it to a dealer.
You can probably find someone in your area that has a copy of Vag-Com (scantool software that vw uses) software that could look at your timing. It definitely sounds like your dealer was throwing parts at your car because they didn't know what your problem is. If I were you, I'd copy and paste your post from here over at www.tdiclub.com
Posted on Jul 21, 2009
Running rough?? If i took a guess I'd say there's a faulty injector. Does it smoke like hell ?? Does it also miss at idle?- If so get a line wrench and a rag handy. Start the car and while idling wrap the rag around the base of the fuel line connector on injector 1 and crack it just a bit until fuel comes out. It might spray, thus the rag. If the miss gets worse, that ain't the injector to blame. Continue with the other 3. If you crack a line and there is no or very little change in the miss then you found the guilty party.
On a long shot it could also be a stuck valve.
Did that get it?? It sounds like an issue other than MAF but.... get a multimeter and try probing the connecter to the MAF. When you find out what it is , please let me know. I'm curious
*The key must be on*
pin 1- ignore it
pin 2- gnd = 12-14v
pins 2- 3 = 12-14v
pin 4- gnd = 5v
pins 3- 4 = 5v
P0101 - Mass Air Flow Sensor (G70): Implausible Signal
Posted on Dec 14, 2009
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