We know that the MPS changes the pulse width based on the manifold vacuum and the atmospheric pressure. Testing for […]
Which is best? This chart shows @cushjbc ‘s factory calibrated MPS (green) and my Wideband O2 calibrated MPS (red). The measurements have […]
In this topic I will describe how the D-Jetronic basic fuel injector pulses are created with the aid of circuit […]
I previously wrote about how to simulate an MPS in KiCAD. Here is how to tweak the model to match […]
This is version 2 which allows the vacuum to be varied over time during the simulation. The circuit simulator – […]
 recently started to suspect that I had made a mistake with this simulation, getting the timing of the outputs relative […]
The TPS takes the position of the throttle linkage and generates four outputs: When the throttle is 2% or less […]
Here is a simulation of the air and coolant temperature sensors using SPICE and KiCAD. All of the heavy lifting […]
The core of the D-Jetronic system is the relationship between the engine control unit (ECU) and the manifold pressure sensor […]
Here is a block diagram showing the components of D-Jetronic (V8 shown). The Engine Control Unit (ECU) is the brains […]
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