TDI

[t2myd]

my a4 tdi afn is coming up with needle lift sensor fault , will this throw the car into limp mode ive changed loads of sensors and this keeps comeing up

 

[aragorn]

Needle lift sensor is in on of the injectors i think. And yes it will cause limp mode.

 

[t2myd]

its the only thing i havent changed ,

 

[redevo1]

How did you get on?

 

[t2myd]

yeah ,cars running perfect now ,turned out to have a loose connection on the boost solanoid, loads of power now

 

[JohnC]

I appear to have exactly the same problem. Stopped off on the way home from work and when I started the engine again the revs rose to just over 2k rpm for about a second before it settled to idle. Pulling away I noticed a lack of power and general sluggishness which I assume is limp mode. No warning lights or smoke under acceleration.

Did you need to do a VAG-COM scan to locate the boost solenoid problem, and is it easy to get to? I have no idea where this is in the engine.

Car is a '98 1.9TDi quattro AFN engine with 183k miles.

 

[t2myd]

mine turned out to have 2 wires mixed up , realy got on my nerves for 6 months trying diferent sensors ,and puting it on vag com , pulls realy well now , especialy after the de,cat .was around 145 bhp with remap . definatly more now that turbos been cleaned and decated , If you need any sensors email me ive got some spare. tommydavieson@hotmail.co.uk )

 

[redevo1]

I appear to have exactly the same problem. Stopped off on the way home from work and when I started the engine again the revs rose to just over 2k rpm for about a second before it settled to idle. Pulling away I noticed a lack of power and general sluggishness which I assume is limp mode. No warning lights or smoke under acceleration.

Did you need to do a VAG-COM scan to locate the boost solenoid problem, and is it easy to get to? I have no idea where this is in the engine.

Car is a '98 1.9TDi quattro AFN engine with 183k miles.

I ended up biting the bullet and took it to a diesel specialist turned out mine was a sensor on the fuel pump?

 

[t2myd]

there a brilliant car when there running perfect ,but when there not there a pain in the a@se .ive had mine 3 years ,it was justy a car a bought off my mate ,in fact ive never realy drove it , troubles started when i lent the car to a good mate ,and problems started from there