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50 HARLEY...SORRY for late reply, i have a similar issue.....Ground Wire Oil Hammer Mentions I " think" he means a ground terminal ( big single strand) which heads towards the front of the car to 1 point where it bolts to the floor (i'd say almost in front of the break pedal but it bolts to...

Hi Mozamgiquer, Yes it is a 2005 Passat TDI - BHW DIESEL....what screwed me up is my search of an aftermarket Cat for this car and the diagrams I see on Ebay . I have not been under my car in years except for a Tranny Fluid change out and paid no attention to the Cat . So on Ebay they show...

Hey Mozambiquer, I have not been under my car in 4 years since i did a Tranny Fluid Flush - can't remember what the Cat Converter looks like but yes it is a 2005 Passat TDI. BHW DIESEL.....What threw me off, as I have little knowledge of Cat Converter's is in my search for a new Cat - which...

Hi Quick TD.....Thank you for your reply - you are the ONLY one so far who knows if that upstream O2 Sensor will be monitored on a 2005 BHW's brain. As to this being the first BHW with a clogged Cat - I'm wondering too if the shop had the diagnosis right - more on that below. I lost most...

Hi Oilhammer, 2005 Passat TDI clogged Catalytic Converter - no one makes a replacement Cat, No Dealer - no aftermarket ones. Might have to gut both chambers but will I set off the Sensors that are in each chamber and get a constant Check Engine Light? Any tips on replacing a cat convert...

So here i am Dec of 2020 - my 2005 PASSAT TDI throws a check engine light - shop claims a clogged Catylitic Converter... this is now an obsolete part - No Dealer has them. Can't find an aftermarket for this car either! Next I applied to State of CT to get a ' Waiver' for emissions - told...

Turns out , I spoke too soon. The new vacuum pump and hoses, which were in need of repair - my brakes for one are better - and this appeared to be the cause of the occasional limp mode was not the ' total ' solution. I've gone into Limp Mode 4 times now with no Engine Warning Light...

Final solution to my Limp Mode which started to happen with no Cell coming on in the Dash. It was not the MAF sensor. The vibration from the engine worn down the connection off the Vacuum Pump where the tube goes. This vacuum loss did not show up at idle but at higher RPM's. The end of...

50 hARLEYRIDER i'll look into your BV434 on my other Passat TDI. Any more details on it and why you like it more? Tried Google-ing BV434 - nothing came up. Who is the manufacturer and do you remember the pressure it builds up to ? Blair

TKAL I resolved the situation. I told the mechanic that years ago on my 2001 Jetta TDI - when new it would go into Limp Mode often. Dealer and VWNA TEC never found the problem on their equipment. VWNA bought back my 2001 and sold me a 2002 at MSRP difference. Many months later Bosch...

ThunderShorts, I actually met Wally Eriksson, years ago, when he was with SAAB and teaching how to rebuild trannys. I'm not sure he's still there. Good to know they do Turbo's too....I did not know that. Thanks I do notice the power band is shorter, but when it comes on it's noticeable...

BB Thanks for that info. A relieve for me since, now, I know the same upgrade I spec I originally wanted, is in the car -just in a Mahle box. I will soon be ordering a Deluxe Timing belt Kit from you when I track down Jason Diagnardi to install it and headed for a Delete Kit too. I'm...

Tilal, In case you have a similar issue, these are the event I've had. The Turbo has under 70,000 miles on it. He, initially did not change it out - nor try to talk me into a new turbo. He just found a relay related to the turbo that pulled up as bad on his equipment. I don't know which...

Indigo Blue, You seem to be right. So far on the Web I can't find any buy out between BorgWarner and Mahler than something that seemed - un-Turbocharger related purchase. At this point I'm guessing he knew there was an upgraded Turbo and got the name wrong again. Like using VNT vs...

Called the Mechanic, seems Mahle and Borg Warner, one company bought the other -so for anyone who cares - Mahle and Borg-Warner Turbo's are the same. Blair

Well, I think you pointed me in the right direction to trouble shoot the Limp Mode. As usual , you have saved me before with your knowledge. He ended up putting a Mahle Turbo on my car. The Borg Warner , he said, looked like someone dropped it and didn't want to risk it. I did not get a...

ThunderShorts, To save you time, I discovered what a VNT does on YouTube , thanks to you. I will ask the mechanic to check. I did not see a good YouTube on the N-75 but it seems to be a vacuum or electronic switch that does something to the Turbo. Could not tell from the diagram if I was...

Thundershorts, so I can pass on your knowledge, which has always been good over the years, can you describe to me the function of the VNT Rod and the N-75 which I assume is a relay? I assume VNT rods can be replaced but does a new Turbo come with a new VNT Rod? Back at the shop of...

My 2005 Passat TDI threw a code which said Relay to turbo. New Relay put in and the car still has no power. On closer look it's the waste gate not opening on the 12 year old turbo with just 67,000 miles on it. I'm told Borg Warner has an upgrade to my original with 1 lb more boost and a...

ok,,,thanks Thundershorts !