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Author VW tdi limp mode
Jamie-C
Member
Registered: 3rd Jun 08
Location: Ballycastle
User status: Offline
11th Mar 13 at 19:12   View User's Profile U2U Member Reply With Quote
Got a seat Leon tdi thats in limp mode, plenty of power when just started but then theres a sudden loss of power. Whats the most likely cause?
Simon_16v
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Registered: 14th Aug 06
Location: Yorkshire
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11th Mar 13 at 19:23   View User's Profile U2U Member Reply With Quote
Is this under normal driving or when giving it some beans?
Jamie-C
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Registered: 3rd Jun 08
Location: Ballycastle
User status: Offline
11th Mar 13 at 20:13   View User's Profile U2U Member Reply With Quote
When giving it some beans, once it hits about 3500rpm theres just a sudden loss of power, but if I knock it off and start it again all the powers back for a small amount of time
spencer88
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Registered: 6th Oct 08
Location: cornwall
User status: Offline
11th Mar 13 at 20:16   View User's Profile U2U Member Reply With Quote
MAF?
Boost Pressure Valve? The N95/N97 IIRC.
Jamie-C
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Registered: 3rd Jun 08
Location: Ballycastle
User status: Offline
11th Mar 13 at 20:56   View User's Profile U2U Member Reply With Quote
It could be anything I suppose, going to have to get someone to put it on the computer for me.

Just thought maybe there was something that was almost always the cause.
IvIarkgraham
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Registered: 27th Mar 04
Location: Ellesmere Port, Cheshire
User status: Offline
11th Mar 13 at 21:02   View Garage View User's Profile U2U Member Reply With Quote
new car? bought another heap?
Jamie-C
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Registered: 3rd Jun 08
Location: Ballycastle
User status: Offline
11th Mar 13 at 21:19   View User's Profile U2U Member Reply With Quote
Haven't bought it yet Got a loan of it for a few days as I'm considering buying it, can't be nothing to serious as the turbo etc is fine when just started
andys sxi
Premium Member

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Registered: 19th Jan 06
Location: Chester Drives:Scirocco tdi bluemotion
User status: Offline
11th Mar 13 at 22:24   View Garage View User's Profile U2U Member Reply With Quote
is there any engine managment light on? could be a boosting problem? or a n75 valve, could try pluging it into vag com and see if anythung comes up

April 08 feature car
Jamie-C
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Registered: 3rd Jun 08
Location: Ballycastle
User status: Offline
12th Mar 13 at 00:09   View User's Profile U2U Member Reply With Quote
The bulb is either done or more than likely been removed so I'd say the EML is probably on. Don't want to pay for a diagnostics though as I'm only testing it , think I'll just give it a miss, don't want to be buying another load of trouble!
Mikey_j
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Registered: 1st Nov 08
Location: Ipswich
User status: Offline
12th Mar 13 at 20:14   View User's Profile U2U Member Reply With Quote
Dpf pressure sensor. Common problem. What age is it ?
Mertin
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Registered: 12th Oct 05
Location: Scotland
User status: Offline
12th Mar 13 at 21:02   View User's Profile U2U Member Reply With Quote
Could be the vnt in the turbo, will log an overboost fault probably. Variable Nozzle Turbo and the vanes get choked up.
Some spray mr muscle in the inlet, some use the innotec cleaner that you put in through the exhaust or just avoid it

 
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