Additional Analog Inputs For Logging With MS43

In this article we will take a look at MS43s additional analog input possibilities that we can use to log additional sensor data with and maybe use for tuning in the future.

All of the following inputs are capable of measuring an analog 0-5V signal with with an accuracy of 4.8828125mV. If you want to log 12V sensors you need an addtional voltage devider circuit.

For logging these inputs we recommend using TunerPro and the extended logging you can find in our patchlist for MS43.

For the correct pinout see Siemens MS43 Pinout. In this article we use format "plug.pin".

Additional Inputs Available Without Modification

[0-5V] Input Fuel Cap Status Switch

[0-5V] Signal Diagnostic Module Fuel Tank Leakage (DMTL)

[0-5V] Signal Secondary Air Pump MAF Sensor

Additional Inputs Available With Software Modification

O2 Sensor Post-Cat Bank 1

O2 Sensor Post-Cat Bank 2

Additional Inputs Available With Hardware Modification

EGT Sensor Pre-Cat Bank 1

EGT Sensor Pre-Cat Bank 2

EGT Sensor Post-Cat Bank 1 (not available for cars with pencil coils from factory)

EGT Sensor Post-Cat Bank 2