A2 1.4 TDI ECU info

J

John DNA

Member
Thought this may be some useful information for the forum;

Audi A2 (8Z) TDI 1.4 AMF 045906019G 75bhp
Audi A2 (8Z) TDI 1.4 AMF 045906019AT 75bhp
Audi A2 (8Z) TDI 1.4 BHC 045906019BA 90bhp
Audi A2 (8Z) TDI 1.4 ATL 045906019F 90bhp
 
Mr Smurf said:
What is the difference between AMF 045906019G and 045906019AT?
Click to expand...

I just looked at both the original binaries in WinOLS and they are very similar, there is no difference in offset for all tables and scaling is the same. The only differences is there are two tables that have slightly different values and there are a few of lines with a few byte changes, usually to do with a change in auxilaries or options. There are also some other tiny changes but nothing different in direct controls.
 
Here is a full list of engine ECUs as used in the A2:

036 906 034Q - AUA engine MPI 75PS
036 906 034EG - AUA engine MPI 75PS (EU4 compliant)
036 906 034EH - AUA engine MPI 75PS (EU3 DDK compliant)
036 906 034CA - BBY engine MPI 75PS (EU4 compliant)
036 906 034FE - BBY engine MPI 75PS (EU3 DDK compliant)
036 906 013F - BAD engine FSI 110PS (EU4 compliant)
045 906 019G - AMF engine TDI 75PS (up to chassis number 8Z3 012 177)
045 906 019AT - AMF engine TDI 75PS (from chassis number 8Z3 012 178)
045 906 019BA - BHC engine TDI 75PS
045 906 019F - ATL engine TDI 90PS
045 997 019 - ANY engine 1.2 TDI 61PS(up to chassis number 8Z3 050 000)
045 906 019BL - ANY engine 1.2 TDI 61PS (from chassis number 8Z4 000 001)

This is an exhaustive list of ALL ECUs ever used in the A2 and is posted to fill in the gaps left by your original post and also to correct the statement that the BHC engine is 90PS - it is not!

Cheers,

Mike
 
Skipton01 said:
045 906 019G - AMF engine TDI 75PS (up to chassis number 8Z3 012 177)
045 906 019AT - AMF engine TDI 75PS (from chassis number 8Z3 012 178)
Click to expand...

Is 045 906 019AT an EURO 4 engine?

(I am looking for a way to transform my EURO 3 engine in to an EURO 4 engine...
Then I would save £150 on taxes per year in Sweden)
 
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Skipton01 said:
It isn't listed as such, but taking the model year it was used from, it must have been EU4 compliant, yes.

Cheers,

Mike
Click to expand...

You don't have any info on the difference between AMF 045906019G and 045906019AT? And if a 045906019G can be converted in to 045906019AT??
 
Internal technical info, no, sorry.

The conversion could almost certainly be done using a suitable EEPROM programmer, but to be honest, you're better off finding one from a breakers.

Cheers,

Mike
 
There must be other changes than the ECU, the operating system in the EDC15 controller is exactly the same on those two in the orginal file, as the engine code is the same then 019AT software would run at least on an 019G box, however it's what the differences are that you need to look at what the actual differences are on the vehicle. I think maybe the qualifying process to get the vehicle passed through as compliant might not be so easy.

The 90ps mistake was from an Abt Sportsline list, looked in WinOLs and sure it is different.
 
Skipton01 said:
Internal technical info, no, sorry.

The conversion could almost certainly be done using a suitable EEPROM programmer, but to be honest, you're better off finding one from a breakers.

Cheers,

Mike
Click to expand...
It could be done but without knowing what the byte changes are then you might get some unexpected errors on the car with systems, plus one of the tables is slightly different for a reason. Also DIY EPROM removal is not advised! I've repaired far too many ECU's from inexperienced users AND tuners in the past. I only ever use a temperature controlled hot air rework station with vacuum pickup for reliable and safe repairs

a2.JPG

a2.JPG
 
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Mr Smurf said:
Is 045 906 019AT an EURO 4 engine?

(I am looking for a way to transform my EURO 3 engine in to an EURO 4 engine...
Then I would save £150 on taxes per year in Sweden)
Click to expand...
I don't know the details of Swedish car regulations, but I would imagine that your car has been type approved to EU3 standards and any conversion to EU4 would require re-testing and a new certificate of approval to be issued.

The cost of this testing and a new certificate may prove to be equal to many years of the extra EU3 tax and so not economically viable.

Cheers,

Mike
 
Skipton01 said:
Here is a full list of engine ECUs as used in the A2:

036 906 034Q - AUA engine MPI 75PS
036 906 034EG - AUA engine MPI 75PS (EU4 compliant)
036 906 034EH - AUA engine MPI 75PS (EU3 DDK compliant)
036 906 034CA - BBY engine MPI 75PS (EU4 compliant)
036 906 034FE - BBY engine MPI 75PS (EU3 DDK compliant)
036 906 013F - BAD engine FSI 110PS (EU4 compliant)
045 906 019G - AMF engine TDI 75PS (up to chassis number 8Z3 012 177)
045 906 019AT - AMF engine TDI 75PS (from chassis number 8Z3 012 178)
045 906 019BA - BHC engine TDI 75PS
045 906 019F - ATL engine TDI 90PS
045 997 019 - ANY engine 1.2 TDI 61PS(up to chassis number 8Z3 050 000)
045 906 019BL - ANY engine 1.2 TDI 61PS (from chassis number 8Z4 000 001)

This is an exhaustive list of ALL ECUs ever used in the A2 and is posted to fill in the gaps left by your original post and also to correct the statement that the BHC engine is 90PS - it is not!

Cheers,

Mike
Click to expand...

here's the incorrect list for your viewing
 
045 906 019G - AMF engine TDI 75PS (up to chassis number 8Z3 012 177) Webasto fuel aux. heater or 900W el. aux. heater, EU3
045 906 019AT - AMF engine TDI 75PS (from chassis number 8Z3 012 178)
Webasto fuel aux. heater or 900W or 1500W el. aux. heater, EU3
045 906 019BA - BHC engine TDI 75PS,
Webasto fuel aux. heater or 900W or 1500W el. aux. heater, EU4
045 906 019F - ATL engine TDI 90PS
Webasto fuel aux. heater or 900W or 1500W el. aux. heater, EU4

Main differences between AMF EU3 and BHC EU4:
- turbocharger
- watercooled EGR
- intake manifold
- electronic intake manifold flap
- exhaust manifold, downpipe, cat
- PD elements
- all tubes between airfilter and turbo
- LMM
- engine controller

Main differences between BHC EU4 and ATL EU4:
- turbocharger
- intake manifold
- exhaust manifold, downpipe, cat
- PD elements
- all tubes between turbo an intake manifold
- intercooler
- 5V fast glow system with glow plug controller instead of 12V standard
- chargepressuresensor
- pistons with lower compression ratio
- bearings for connection rods and crankshafts
- boost pressure and EGR regulation valves
- engine controller

Thomas
 
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