X Reg Tdi Loss Of Power And Glow Plug Light Flashing

[v_leesy2k1]

went on a day out on sunday firs time iv give my gal a good run out did 350mile without a hitch but ten mile from home i jumped in the fast lane and

 

put my foot down and lost all power the car wouldnt rev and my glow plug was flashing i craped my self as i had a full car of kids i jumped on the hard shoulder and the car was idleing

at 1500 rpm and still wouldnt rev i turned it of and started it again and all was fine does any one no what was wrong

 

iv booted it up and down my local motorway to see if it will do it again but hasnt yet

 

any help is much welcomed

[NikpV]

likely to be a dirty turbo vane problem - usually happens over 3k revs engine detects a pressure/boost problem and ecu puts it in to 'limp home mode'. Will reset on restart until problem is detected again

 

see here for diy solution !!

[NikpV]

IIRC - if you get the fault codes read this is the code you are looking for

 

17965 - Charge Pressure Control: Positive Deviation

[v_leesy2k1]

what about them addatives u can put in with your fuel will that keep it clean or are they crap

[gio]

what about them addatives u can put in with your fuel will that keep it clean or are they crap

 

Not crap, but not any use for keeping the turbo clean,as those additives are for fuel lines,the turbo only deals with air.

 

Clearly not up for the stripping down of the turbo then? don't blame you,as its just as lickly you have a sticking actuator or you n75 valve is faulty,or a vacuum pipe has a leak,the list goes on and on.

 

I would start by doing a search of turbo faults in the archives and seeing which ones you feel you can check out yourself.start with the simplier ones vacuum pipes, n75 valve and actuator ect ect before worrying about the internals of the turbo. if the turbo is indeed the problem,theres a place at nottingham that reconditions them for around

[ini]

No revs and a high idle could be the fly-by-wire throttle potentiometer?

 

If the unit fails, revs are raised so you can limp to a garage.

 

Easy VNT clean is:

 

Unbolt CAT from turbo, spray 'carbon remover' (Mr Muscle or barbecue cleaner) into hotside, work vnt rod/lever for 10 mins, leave for an hour, spray more and work lever again, mop up, bolt CAT back on, go for drive with your fully unstuck VNT mechanism.

Edited March 27, 2008 by ini

[Dodger]

I agree with ini. More likely to be the throttle potentiometer. In limp mode due to turbo problems the engine still responds to the throttle and you can still manage 50-60mph on the level.

 

A diagnostic lead and VAG-COM would give you an accurate diagnosis. Should cost less that

Edited March 27, 2008 by Dodger

[v_leesy2k1]

iv been looking for a vag com on ebay but there are that many i dont no witch 1 to buy can you guys recomend 1 to me plz and ill go on ebay and get 1

im running vista on a new laptop so it shouldnt be a problem useing 1

 

cheers for ya help people im off work next week so ill give it a run see if it happens again