I need a suggest what is wrong with my Octavia 2.0TDI PD140 2009. When I started the engine and drove off, it feels flat and sluggish below 1,800rpm, never felt that before, but after 10 minute it feels lot of torque what it should be.

I have looked on list here:

Turbo hoses no split or o-ring leaking all fine

Turbo are new, the waste-gate is function no seized

Vacuum pipes all fine

No head gasket leaking through coolant, no oil in the water

A bit of puff light grey smoke out of the exhaust in the first 5 second after start which it happens before, all glow plugs are fine.

So no error codes.

Would that be MAF? the plug are fine, no loose or dirty connectors, how can I test it with multimeter of ohms or voltage? Hayes manual doesn't mentioned what current should I look out for?

Dont suppose its an auto?

No manual.

I have diagnostics again never had P0341 before on my first diagnostic, MAF is above the level. I have cleaned. Need new MAF and cambelt sensor.

I would change cam sensor first and see if the MAF sensor calms down before replacing both.

Alasdair

I have fitted the cam sensor, no error. I have adjust torsion value at zero if that's correct?

But the air mass was 477 mg/stroke over the limit of 380.

So I have bought OEM MAF rather than Chinese.

Now it reads 556 mg/stroke.

But the car runs lovely plenty of torque under 1,800 rpm.

Anything to worry?

3 hours ago, 43576 said:

I have fitted the cam sensor, no error. I have adjust torsion value at zero if that's correct?

But the air mass was 477 mg/stroke over the limit of 380.

So I have bought OEM MAF rather than Chinese.

Now it reads 556 mg/stroke.

But the car runs lovely plenty of torque under 1,800 rpm.

Anything to worry?

I mean over limit of 300 mg/stroke not 380.