The VW Polo 9N manufactured between 2002 and 2010 is a real fun car and is available in several formats. Meaning either Gasoline or Diesel, or hatch back GTI or sedan as in trendline, confortline or highline. Each of these fitted with either a 1.2L, 1.4L, 1.6L, 1.8L, 1.9L or 2.0L engine. As such their Electronic Control Unit (ECU) / Electronic Diesel Controller (EDC) differs quite a bit since they are matched to their respective engines which also varies substantially. Amongst which are the ATD, AMF, AVY, AWY, AZQ, BAH, BBX, BBY, BBZ, BMD, BMS, BMT, BNV, BNM, divided into 3 cylinder and 4 cylinder engines. These engines have 6 & 12 valves for 3 cylinder engines, and 8 and 16 valves for the 4 cylinders engines. FSI = Fuel Stratified Injection. Often times when an engine is replaced, the engine cranks but just wont start. Scanning the ECU results in a 18020 DTC - Engine Control Module Incorrectly Coded. If the engine does not originate from exactly the same model, the following list of codes aught to help to recode the ECU to the correct type.
VW Polo 9N ECU Coding
01: ECM VW Polo 9N
BBY 036 906 034 DD MARELLI 4MV 4448
00031
01: ECM VW Polo 9N
BKY 036 906 034 GQ MARELLI 4TV 6280
00031
01: ECM VW Polo 9N
BBY 036 906 034 HL MARELLI 4MV 5511
00031
01: ECM VW Polo 9N
BBY 036 906 034 DD MARELLI 4MV 4448
00071
01: ECM VW Polo 9N
BKY 036 906 034 KA MARELLI 4TV G 7448
00071
01: ECM VW Polo 9N
BKY 036 906 034 JC MARELLI 4TV G 6549
00031
01: ECM VW Polo 9N
AMF 045 906 019 -C 1.4l R3 EDC 0200SG 1479
00000
01: ECM VW Polo 9N
BNM 045 906 019 BP 1.4l R3 EDC G000SG 8395
00002
01: ECM VW Polo 9N
AMF 045 906 019 BF 1.4l R3 EDC 0000SG 5179
00005
01: ECM VW Polo 9N
BNV 045 906 019 CA 1.4l R3 EDC G000SG 7537
00005
01: ECM VW Polo 9N
ATD 038 906 019 JK 1.9l R4 EDC 0000SG 1558
00005
01: ECM VW Polo 9N
ATD 038 906 019 LB 1.9l R4 EDC G000SG 5101
00005
01: ECM VW Polo 9N
AVY 036 906 033 D 1.6l/4V SIMOS3 00HS3512
00031
01: ECM VW Polo 9N
BMD 03D 906 033 F 1.2l/2V SIMOS3 00HS2509
00031
01: ECM VW Polo 9N
AWY 03D 906 032 C 1.2l/2V SIMOS3 00HS2501
00031
01: ECM VW Polo 9N
AZQ 03E 906 033 L 1.2l/4V SIMOS3 00HS4726
00071
01: ECM VW Polo 9N
BNM 045 906 019 BP 1,4l R3 EDC G000SG 8395
00002
01: ECM VW Polo 9N
BMT 03G 906 013 R4 1.9L EDC G000SG 0622
000071
01: ECM VW Polo 9N
BMS 045 906 013 R3 1.4L EDC G000SG 9554
0003071
01: ECM VW Polo 9N
BAH 03C 906 057 AK 1.6l BOSCH ME7.5.20 0707
0000075
01: ECM VW Polo 9N
BBX 06A 906 032 PB 2.0l BOSCH ME7.5.10 0305
00071
1.2 L 3 cylinder 6valve petrol, 55 HorsePower 40 killoWatt
1.2 L 3 cylinder 12valve petrol, 65 HorsePower 47 killoWatt
1.4 L 4 cylinder 16valve petrol, 75 HorsePower 55 killoWatt
1.4 L 4 cylinder 16valve petrol, 86 HorsePower 62 killoWatt
1.4 L 4 cylinder 16valve petrol, 100 HorsePower 74 killoWatt
1.6 L 4 cylinder 8valve petrol, 101 HorsePower 74 killoWatt
2.0 L 4 cylinder 8valve petrol, 115 HorsePower 85 killoWatt
1.4 L 3 cylinder TDI, 75 HorsePower 55 killoWatt
1.9 L 4 cylinder SDI, 64 HorsePower 47 killoWatt
1.9 L 4 cylinder TDI, 100 HorsePower 74 killoWatt
1.9 L 4 cylinder TDI, 130 HorsePower 96 killoWatt