Audi A2 Conversion: Difference between revisions
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Line 140: | Line 140: | ||
|ge/li | |ge/li | ||
|- | |- | ||
|75 | |75/76 | ||
|To cruise control switch * | |To cruise control switch * | ||
| | | | ||
|bl/sw | |bl/sw sw/ro | ||
|- | |- | ||
|82 | |82 | ||
Line 154: | Line 149: | ||
| | | | ||
|gr/br | |gr/br | ||
|- | |- | ||
|85 | |85 | ||
Line 182: | Line 172: | ||
br/bl sw/gn | br/bl sw/gn | ||
|- | |- | ||
|91 | |83/84 | ||
|Throttle body | 91/92 | ||
117/118 | |||
|Throttle body senror | |||
Throttle body sensor | |||
Throttle body motor | |||
| | | | ||
|ro/bl | |ro/gn gn/bl | ||
ro/bl li/ro | |||
gn br/sw | |||
|- | |- | ||
|93 | |93 | ||
Line 208: | Line 202: | ||
|- | |- | ||
|100 | |100 | ||
114 | |||
|EGR pot | |EGR pot | ||
EGR mot | |||
| | | | ||
|br/li | |br/li | ||
li/ge | |||
|- | |- | ||
|102/103 | |102/103 | ||
Line 231: | Line 228: | ||
| | | | ||
|bl/gn | |bl/gn | ||
|} | |} | ||
{| class="wikitable" | {| class="wikitable" |
Revision as of 08:36, 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
# | 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 * if installed | ws | |
39 | Clutch pedal sensor * if installed | ro/ge | |
40/41 | To Climate control display | sw/ge sw/gr | |
43/54 | To instrument cluster (function unknown) | gn/sw bl/ws | |
51/52 | Lambda (first) signal | bl/ws ge | |
55/56 | Brake light switch NC/NO to +12V | ws/ro ro/sw | |
57 | To cruise control switch * if installed | bl/ro | |
58/60 | CAN-L CAN-H | or/br or/sw | |
63 | Lambda (second) heater | li/ro | |
64 | Charcoal filter solenoid | bl/ge | |
65 | Fuel pump relay- control | ro/br | |
68/69 | Lambda (second) signal | bl/br ro/li | |
70/71 | Lambda (first) signal | bl sw | |
72 | Throttle second pot GND | gr | |
73 | Throttle first pot GND | ge/li | |
75/76 | To cruise control switch * | bl/sw sw/ro | |
82 | Engine speed sensor | gr/br | |
85 | Intake manifold Temp/Pressure | gr | |
86 | Hall sender G40 signal | ro/sw | |
87 | Engine speed sensor | gn/sw | |
88/89
96/97 |
Injector 1-4 | sw/li li/sw
br/bl sw/gn | |
83/84
91/92 117/118 |
Throttle body senror
Throttle body sensor Throttle body motor |
ro/gn gn/bl
ro/bl li/ro gn br/sw | |
93 | Coolant temp sensor | gr/ws | |
98 | +5V wiring to engine bay | gn/li | |
99 | Knock sensor | ws | |
100
114 |
EGR pot
EGR mot |
br/li
li/ge | |
102/103 | Ignition coil bank 1/2 | gn/ws gn/ro | |
106 | Knock sensor | br | |
108 | GND for engine sensors | gr/ro | |
109 | Intake manifold Temp/Pressure | bl/gn |
# | Org Function | Ours | Color |
---|---|---|---|
1/2 | GND | br br | |
3/5 | permanent 12V | gn/ge gn/ge | |
4/20/21
39/40 |
First Lambda | ge ro/ge bl/ge
br/ge li/gr | |
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 | |
12 | Heater output switch | ge/br | |
13/17/30 | Air mass meter | gr/ro gr/ws li/ws | |
15/18/43
33/19/24 |
Throttle POT1/2 (signal/Gnd/+5) | ge/li br/ro ge/li
br/gn gr/ge gr | |
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 | |
60/80 | NOX heater | br/ws br/ws | |
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 | |
92/93102
107/118/121 |
Throttle body | li/ge li/gr ws
ro/gn ro/bl li | |
114/115
116/117 119/120 |
Injectors 1-4 | br/ge br/ws
br/gn br/ro br/bl br/sw | |