Hello.
I need help because I'm having a problem with my TDI.
My car is a golf mk3 but have an engine of a SEAT IBIZA ASV (2001) but the ECU and the map that it is is a PASSAT AFN.

What happens is that the car 1200rpm the sobs because IQ is always vary.

The car to relantim can not have a very stable is always varying between
878rpm 903rpm and 924rpm.

If accelerate long time in 5gear to 3000rpm the IQ to relantim is also not stable.

The IQ also this always vary and is not stable.

The problem may be on the map?

Or the problem is the same in the injection pump?

The map N146 pump voltage is diferent !

link 1 image : http://s3.postimg.org/n9uqc76z7/diferen_a_IQ.jpg

link 2 image : http://s17.postimg.org/n154p5qn3/SOL_limiter.jpg

Maybe your problem is the controller of the injection pump. The filings get in between the coil and the dose is changed. Symptoms: waving turns, jerking when accelerating.
You can lose a bin with seat to golf.
I have a Seat Arosa engine with a golf 3 AFN, ECU golf 4, octavia Flasch: P My engine does not have any problems. I think you have a broken pump controller. Clean it and it should be ok.

Sory for my english. P