WS3B-1

Map Analogue voltage against injectors petrol

As the manifold pressure increases so does the injector dwell time and as the RPM increases so does the frequency of injectors working ... hence engine provides more fuel because there is more air inside the manifold , as the pressure increases inside the manifold so does the MAP output voltage.

Signal name: MAP analogue vs Injector pattern digital

Volt division: (MAP) 2 Volts

Volt division: (Injector) 20 Volts

Time division: 5 mili seconds