B6 A4 Avant 1.9tdi Slight Missfire/Judder

[audiv6]

Hi Guys,

Hoping someone on here can shed a little light for me,

I recently bought a 2003 B6 PD130 but at around 2-3k revs in any gear I have a slight judder and the engine just isn't pulling the way it should, it seams to be not getting enough fuel or something.

Car was serviced just last week

I also must add i blocked the EGR Valve and mapped it out but the problem still persists

Can anyone shed light on this for me?

Thanks
Aaron!

 

[Gazwould]

Mileage ?

 

[audiv6]

Mileage ?

Sorry 152k Miles Full Service History

 

[Gazwould]

Bit early for an injector loom but not impossible .

 

[audiv6]

Bit early for an injector loom but not impossible .

Would that be causing said symptoms? Any way of checking it?

 

[Gazwould]

Yes , not a waste of money to replace at that mileage .

What service intervals and actual oil has it been serviced with ?

 

[audiv6]

Yes , not a waste of money to replace at that mileage .

What service intervals and actual oil has it been serviced with ?

Hi Mate, it's been serviced roughly every 10k Miles with 5w40 PD Mostly Quantum

 

[Gazwould]

Not the better oil for protecting the cam , but not as bad as a recent story of a main dealer supplying for years Quantum
10W 40 semi synthetic for a 1.9 PD .

 

[audiv6]

Not the better oil for protecting the cam , but not as bad as a recent story of a main dealer supplying for years Quantum
10W 40 semi synthetic for a 1.9 PD .

Hopefully not the Cam lol might try a new Harness first, is there a way of telling if its dodgy?

It wouldn't be the lifter pump or anything like that? Car starts perfect

 

[frankc]

You say it's been serviced, have you checked the fuel filter has REALLY been changed? Wouldn't be the first time a filter's not been done and could be getting bocked.

 

[audiv6]

You say it's been serviced, have you checked the fuel filter has REALLY been changed? Wouldn't be the first time a filter's not been done and could be getting bocked.

Yes it definitely has I done it myself just last week as i thought it could be something like that but not that simple it seems. Need to change the Temp Sensor as it wont go any higher than 65/70deg atm.

 

[Mike.M]

Change the harness as Gaz mentioned. Tjink they are about £50 and you may need a new cam cover gasket also

 

[audiv6]

Change the harness as Gaz mentioned. Tjink they are about £50 and you may need a new cam cover gasket also

Would the Harness fire up any kind of fault on VAGCOM?

 

[Mike.M]

Yes and no, as it would not say it is the harness but somethings else like fueling or misfire

 

[DALE_AVANT]

Might be worth taking off the accelerator pedal and cleaning the carbon track with electrical cleaner.

If the previous owner rarely used the entire pedal range you might have a dirty track which can cause these symptoms and/or put the car in safe mode.

Deffo get it VAGCOM'd though

 

[audiv6]

Took it to someone today there. They rreckon injector seals?

 

[Pj_ozz]

Hi, I am going through same issue with my car. It's 2003 1.9tdi with just over 100k miles. I have changed the wiring loom and there are no fault codes or any warning light on the dash. I have checked egr valve, it's working fine. The idle is rough and There is kind of rattling/squeeking noise coming from around the tandem pump area on the engine. Car still pulls away fine and there is no loss in power that I can notice, not smoking excessively. I am absolutely boggled.
Any help would be greatly appreciated.

 

[stevewr1]

Not the better oil for protecting the cam , but not as bad as a recent story of a main dealer supplying for years Quantum
10W 40 semi synthetic for a 1.9 PD .

What would be the best oil for protecting the cam?

 

[Gazwould]

507.00 .

 

[Pj_ozz]

I got it diagnosed at the audi garage and it's the DMF issue. Any help on how to change that.

 

[Mothy69]

I've had the same. Replaced needle valve, had injectors tested, cylinders pressure tested & it's the dmf they say.

I'm putting it off until cam belt & service done after mot. I expect a big bill.. will be paying garage for new clutch & dmf. Just happy it's not cams..

 

[Mothy69]

Hi, I am going through same issue with my car. It's 2003 1.9tdi with just over 100k miles. I have changed the wiring loom and there are no fault codes or any warning light on the dash. I have checked egr valve, it's working fine. The idle is rough and There is kind of rattling/squeeking noise coming from around the tandem pump area on the engine. Car still pulls away fine and there is no loss in power that I can notice, not smoking excessively. I am absolutely boggled.
Any help would be greatly appreciated.

DMF?