ValentineKilla
New member
Hey Guys,
I bought my first VW in January 2020.
Found an immaculate 2003 VW Mk4 Golf Wagon 1.9 TDI
Test drove it twice. Ran beautifully up to 140km/h. You'd never guess this was a high mileage vehicle. (347 000km)
It pushed you back in the seat in 1st and 2nd gear. Everything worked in this vehicle. So i purchased it.
THEN THE WORLD WIDE COVID-19 PANDEMIC BROKE OUT
I let her stand from February till about May, during the LOCKDOWN here in South Africa. As we couldn't transfer the vehicle into my name during the quarantine period.
In May 2020, I drove her to the fuel station to get some diesel and noticed she felt a bit sluggish.
So I headed to the freeway after filling up, only to discover there was NO BOOST at all, none what so ever! (Can still hear the turbo spooling)
I'm literally shifting into 5th gear before even reaching 90km/h. Changing gears at 3200RPM, flat foot, pedal to the metal. She's basically become a N/A Diesel???
- NO WARNING LIGHTS
- NO ERROR CODES
Doesn't appear to be in any form of Limp Mode, as you can rev her up without any problem. She's just extremely slow now. Motor is running fine and everything sounds good.
- NO EXCESSIVE SMOKE (Black or White) Almost Invisible.
I have since researched every forum, YouTube and TDI Facebook group I could find.
- I have replaced the vacuum lines. (Made No Difference)
- I have tried running her with the MAF sensor disconnected and reconnected. (Made No Difference)
- I have tried isolation the N75, also tried connecting it directly to the 12v battery. Tried switching the N75 and N18 around. (Made No Difference)
- I have tried removing the EGR, cleaned it up and refitted. (Made No Difference) I can feel a bit of pressure from the plastic charge pipe, when the hose is off the EGR side.
My buddy and I have since resorted to removing the exhaust manifold to inspect the Turbo for Sticky Vanes.
- Cleaned out turbo exhaust housing. Everything looks fine. Reinstalled. (Made No Difference)
I'm completely baffled by this and am slowly going INSANE!!
Unfortunately I haven't been able to perform a vacuum test yet. But it all seems ok.
The latest thing I heard, is it could possibly be a blocked Catalytic Convertor?? I doubt it, as the car doesn't fart eggs or smoke badly.
Any ideas??? All feedback is greatly appreciated!
Thanks Guys & Girls...
I bought my first VW in January 2020.
Found an immaculate 2003 VW Mk4 Golf Wagon 1.9 TDI
Test drove it twice. Ran beautifully up to 140km/h. You'd never guess this was a high mileage vehicle. (347 000km)
It pushed you back in the seat in 1st and 2nd gear. Everything worked in this vehicle. So i purchased it.
THEN THE WORLD WIDE COVID-19 PANDEMIC BROKE OUT
I let her stand from February till about May, during the LOCKDOWN here in South Africa. As we couldn't transfer the vehicle into my name during the quarantine period.
In May 2020, I drove her to the fuel station to get some diesel and noticed she felt a bit sluggish.
So I headed to the freeway after filling up, only to discover there was NO BOOST at all, none what so ever! (Can still hear the turbo spooling)
I'm literally shifting into 5th gear before even reaching 90km/h. Changing gears at 3200RPM, flat foot, pedal to the metal. She's basically become a N/A Diesel???
- NO WARNING LIGHTS
- NO ERROR CODES
Doesn't appear to be in any form of Limp Mode, as you can rev her up without any problem. She's just extremely slow now. Motor is running fine and everything sounds good.
- NO EXCESSIVE SMOKE (Black or White) Almost Invisible.
I have since researched every forum, YouTube and TDI Facebook group I could find.
- I have replaced the vacuum lines. (Made No Difference)
- I have tried running her with the MAF sensor disconnected and reconnected. (Made No Difference)
- I have tried isolation the N75, also tried connecting it directly to the 12v battery. Tried switching the N75 and N18 around. (Made No Difference)
- I have tried removing the EGR, cleaned it up and refitted. (Made No Difference) I can feel a bit of pressure from the plastic charge pipe, when the hose is off the EGR side.
My buddy and I have since resorted to removing the exhaust manifold to inspect the Turbo for Sticky Vanes.
- Cleaned out turbo exhaust housing. Everything looks fine. Reinstalled. (Made No Difference)
I'm completely baffled by this and am slowly going INSANE!!
Unfortunately I haven't been able to perform a vacuum test yet. But it all seems ok.
The latest thing I heard, is it could possibly be a blocked Catalytic Convertor?? I doubt it, as the car doesn't fart eggs or smoke badly.
Any ideas??? All feedback is greatly appreciated!