Audi A2 Conversion: Difference between revisions

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|GND
|GND
|
|
|
|br
|-
|-
|3
|3
Line 304: Line 304:
|
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|br/sw
|br/sw
|}
{| class="wikitable"
|+ECU pinout 1.6FSI
!#
!Org Function
!Ours
!Color
|-
|1/2
|GND
|
|br br
|-
|3/5
|permanent 12V
|
|gn/ge gn/ge
|-
|6
|N290 Fuel metering valve
|
|ro/bl
|-
|7
|Fuel pump relay control
|
|ro/br
|-
|8/10
|CAN-H CAN-L
|
|or/sw or/br
|-
|11/16/31
32/50
|NOX controller
|
|sw br/ws bl
ws/sw ge/ro
|-
|13/17/30
|Air mass meter
|
|gr/ro gr/ws li/ws
|-
|23/46
|Climate cotroler
|
|sw/gr sw/ge
|-
|26/45
|Radiator fan controller
|
|sw/ge ge/gr
|-
|35
|EGT
|
|ro/gn
|-
|36
|Brake vaccum sensor
|
|bl/br
|-
|37
|Sensors GND
|
|ge/bl
|-
|48/57
|Brake light switch NO/NC
|
|ro/sw ws/ro
|-
|42
| +5V to sensors
|
|ge/gn
|-
|62/64
|Current supply relay
|
|ro gr/ro
|-
|65
|Generator DF
|
|li/br
|-
|67
|Clutch pedal switch * if fitted
|
|ro/ge
|-
|
|
|
|
|-
|78
|N79 crankcase breather heater
|
|br
|-
|88
|N316 Intake manifold flap valve
|
|li/ge
|-
|89
|F265 Controlled cooling thermostat
|
|ro/br
|-
|105
|N205 Inlet Camsh. timing valve
|
|li/gn
|-
|
|
|
|
|-
|113
|N276 Fuel pressure regulating valve
|
|gn/bl
|-
|114/115
116/117
119/120
|Injectors 1-4
|
|br/ge br/ws
br/gn br/ro
br/bl br/sw
|-
|
|
|
|
|-
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|}

Revision as of 08:03, 7 February 2022

On this page we describe the conversion of an Audi A2 1.4i petrol to electric propulsion. We will use the following components:

  • Nissan Leaf 24 kWh battery pack with original BMS
  • Toyota Prius Gen 2 (2004-2009) transaxle with matching inverter
  • openinverter Prius Gen2 motor controller
  • openinverter main board running stm32-car (VCU in ECU enclosure)

Pin mapping

We start out by mapping out useful pins of the original wire harness

ECU

The ECU has two connector slots, a smaller one with pins 82-121 and a larger one with pins 1-81. Here we map out pins useful to us

ECU pinout 1.4i (AUA, BBY)
# orig function our function wire color
1,2 GND br
3 permanent 12V ro
4 ignition 12V ro/sw
5 Lambda (first) heater gr
28 From generator (maybe DF) li/bl
33 Throttle second pot +5V gr/ge
34 Throttle second pot (signal) br/gn
35 Throttle first pot (signal) ge/bl
36 Throttle first pot +5V br/ro
38 To cruise control switch * ws
39 Clutch pedal sensor * if installed ro/ge
40 To Climate control display sw/ge
41 To Climate control display sw/gr
43 To instrument cluster (function unknown) gn/sw
51 Lambda (first) signal bl/ws
52 Lambda (first) signal ge
54 To instrument cluster (function unknown) bl/ws
55 Brake light switch NC to +12V ws/ro
56 Brake light switch NO to +12V ro/sw
57 To cruise control switch * bl/ro
58 CAN L or/br
60 CAN H or/sw
63 Lambda (second) heater li/ro
64 Charcoal filter solenoid bl/ge
65 Fuel pump relay- control ro/br
68 Lambda (second) signal bl/br
69 Lambda (second) signal ro/li
70 Lambda (first) signal bl
71 Lambda (first) signal sw
72 Throttle second pot GND gr
73 Throttle first pot GND ge/li
75 To cruise control switch * bl/sw
76 To cruise control switch * sw/ro
82 Engine speed sensor gr/br
83 Throttle body sens power ro/gn
84 Throttle body sens 2 gn/bl
85 Intake manifold Temp/Pressure gr
86 Hall sender G40 signal ro/sw
87 Engine speed sensor gn/sw
88 Injector 3 sw/li
89 Injector 4 li/sw
91 Throttle body sens power ro/bl
92 Throttle body sens 1 li/ro
93 Coolant temp sensor gr/ws
96 Injector 1 br/bl
97 injector 2 sw/gn
98 +5V wiring to engine bay gn/li
99 Knock sensor ws
100 EGR pot br/li
102 Ignition coil bank 1 gn/ws
103 Ignition coil bank 2 gn/ro
106 Knock sensor br
108 GND for engine sensors gr/ro
109 Intake manifold Temp/Pressure bl/gn
114 EGR mot li/ge
117 Throttle body mot gn
118 Throttle body mot br/sw
ECU pinout 1.6FSI
# Org Function Ours Color
1/2 GND br br
3/5 permanent 12V gn/ge gn/ge
6 N290 Fuel metering valve ro/bl
7 Fuel pump relay control ro/br
8/10 CAN-H CAN-L or/sw or/br
11/16/31

32/50

NOX controller sw br/ws bl

ws/sw ge/ro

13/17/30 Air mass meter gr/ro gr/ws li/ws
23/46 Climate cotroler sw/gr sw/ge
26/45 Radiator fan controller sw/ge ge/gr
35 EGT ro/gn
36 Brake vaccum sensor bl/br
37 Sensors GND ge/bl
48/57 Brake light switch NO/NC ro/sw ws/ro
42 +5V to sensors ge/gn
62/64 Current supply relay ro gr/ro
65 Generator DF li/br
67 Clutch pedal switch * if fitted ro/ge
78 N79 crankcase breather heater br
88 N316 Intake manifold flap valve li/ge
89 F265 Controlled cooling thermostat ro/br
105 N205 Inlet Camsh. timing valve li/gn
113 N276 Fuel pressure regulating valve gn/bl
114/115

116/117

119/120

Injectors 1-4 br/ge br/ws

br/gn br/ro

br/bl br/sw

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