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| Summary of forced induction upgrades
| | This page is old. Here are the new articles: |
| | | * [[2048kg/h MAF Sensor Switch]] |
| ==2048kg/h MAF Sensor switch==
| | * [[Audi RS4 MAF Sensor Conversion]] |
| [[File:MS43_Mafhack_IDA_430066.PNG |300px|thumb|right|MS43 MAF Sensor Handling in IDA]] | | * [[B58 Ignition Coil Conversion]] |
| When measuring mass airflows higher than 1024kg/h you have to modify the program code of your ECU.
| | *[[E46 Fuel Pressure Regulator Modification]] |
| | | * [[PMAS HPX MAF Sensor Conversion]] |
| '''Modifiying program code is dangerous and should only be done by people who knows how to recover a bricked ECU.'''
| | * [[Siemens MS43 Extended Load Limit]] |
| | | * [[Siemens MS43 Retrofit MAP Sensor]] |
| You have two options to change the MAF limit:
| | * [[Use Rear O2 Inputs For Analog Sensors]] |
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| '''First way''' is the recommended way, upgrade to firmware version 0110C6 on MS42 or 430069 on MS43
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| '''Second way''' is to apply the patch manually with a HEX editor.
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| Therefor you have to change the bytes listed below according to the software version from "4E" (1024kg/h) to "3E" (2048kg/h) and set the conversion factor in the TunerPro MAF table to "0.03125*X"
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| {|style="text-align:center;"
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| {| class="wikitable" style="text-align:center;"
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| |+ MAF reading limit offset for MS42
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| !Firmware
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| !Location 1
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| !Location 2
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| |-
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| | 011025
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| | 0x3D41B
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| | 0x3D43F
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| |-
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| | 0110AB
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| | 0x71F3D
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| | 0x71F61
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| |-
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| | 0110AD
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| | 0x71F3D
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| | 0x71F61
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| |-
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| | 0110C6
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| | 0x75161
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| | 0x75185
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| |-
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| | 0110C7
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| | 0x75161
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| | 0x75185
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| |-
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| | 0110CA
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| | 0x75161
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| | 0x75185
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| |-
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| |}
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| {| class="wikitable" style="text-align:center;"
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| |+ MAF reading limit offset for MS43
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| !Firmware
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| !Location 1
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| !Location 2
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| |-
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| | 430037
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| | 0x3D719
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| | 0x3D73D
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| |-
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| | 430055
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| | 0x413A3
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| | 0x413C7
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| |-
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| | 430056
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| | 0x3D8A3
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| | 0x3D8C7
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| |-
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| | 430064
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| | 0x3E0E5
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| | 0x3E109
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| |-
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| | 430066
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| | 0x3B4C3
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| | 0x3B4E7
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| |-
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| | 430069
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| | 0x3B4C3
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| | 0x3B4E7
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| |-
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| |}
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| |}
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| ''Either way you have to recalculate the program code checksums inside the 512kByte file even if you use files with deactivated checksums for the calibration area.''
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| ==PMAS HPX MAF Sensor Conversion==
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| *Pin 1 - IAT | |
| *Pin 2 - SIGRTN IAT | |
| *Pin 3 - MAF OUT | |
| *Pin 4 - MAF RTN GND
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| *Pin 5 - GND
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| *Pin 6 - VPWR +12V
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| Pin 3 goes to yellow wire on MS43 harness MAF connector
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| Pin 4 goes to an external ground on chassis
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| Pin 5 goes to black wire on MS43 harness MAF connector
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| Pin 6 goes to red wire on MS43 harness MAF connector
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| You can use a Bosch 3 pin EV1 Male Connector to make an adapter to plug into the stock harness. An alternative is to use an E46 Camshaft position sensor for the plug. Note the orientation that the connector goes in so you don't mix the connections.
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