Limp mode 120mph/late boost. Help

Adizo

New member
Joined
Jul 7, 2018
Location
Ireland
TDI
Mk4 golf 1.9tdi ARL
Hi everyone new to tdi forums.
I have a 2003 mk4 gt-tdi (ARL). I bought the car 3 months ago mapped to 190bhp and arround 450nm torque, this was told to me by the previous 8 year owner of the car. The car ran great i did timing belt and waterpump at 160kmiles and also a full service. Recently ecountered limp mode but get this only at 120mph.. Alongside this i feel a loss of power and allso seems the turbo is boosting late. For example in 5th gear bost doesnt really come on until 2.5k rpm. I get the fault code charge preasure controle positive deveation. I find it weird tho this only happens at arround 120mph. Any ideas anyone? Please forgive me if i left out important info or posted this in the wrong page.
 

1854sailor

Resident Curmudgeon
Joined
Aug 10, 2004
Location
Westerly, RI
TDI
2015 Golf SE SportWagen, 2015 Golf SE Hatch Back.
This wasn't a question, why unnecessary comment?

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What's "unnecessary" about the comment? Sounds like a legit question to me. Since the OP is in Ireland, he could have meant Km/H.
 

JKC_NC

Veteran Member
Joined
Nov 9, 2009
Location
Raleigh
TDI
'15 Passat TDI DSG | '15 Passat TDI SE Manual (sold 7/2018) | '10 Jetta Wagon TDI manual (sold 4/2015)
I had a 1996 Civic I bought new that I took to top speed when I first go it. 120 mph per speedo, 115 mph by GPS. The car had a speed limiter built into the powertrain....The top speed could be reached in 4th or 5th gear. Once the spedo hit 120, the car "depowered"...it was really noticeable. Perhaps you experienced a speed limiter rather than "limp mode".

Cheers
Joe
 

Fahrvegnugen

Veteran Member
Joined
Jan 21, 2017
Location
Burlington Vt
TDI
01 golf 1.9 alh gls silver
120 km/hr is ordinary highway speed in Ireland. That equates to 75 mph. That could be an overboost problem. If it was 120 mph, it could be rev or speed limiter. I hit 100 mph recently (closed circuit ok) and it was fast enough. I imagine my car would reduce power at 120 too.
 

mjez

Veteran Member
Joined
Feb 15, 2012
Location
Fox Lake, IL
TDI
00 Jetta
What's "unnecessary" about the comment? Sounds like a legit question to me. Since the OP is in Ireland, he could have meant Km/H.
It was in response to jokila's comment. "Is that speed even legal".

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