This is a manual from Mercedes used to educate workshop technicians in the 1970s on the new D-Jetronic electronic fuel […]
I’ve spent the last week or so modeling all 68 parts in an MPS that @cushjbc kindly leant me to take apart. […]
A demonstration of the overrun condition during deceleration where fuel injection is temporarily disabled. This is another way to view […]
In this video I use the ECU tester to demonstrate what the start signal is for and how it affects […]
The following video demonstrates the idle overrun – what it does and how it works. See the videos section at […]
Inspired by the diagram in the Mercedes EFI training manual for mechanics. This shows how the parts of the D-Jetronic […]
This post documents the development of version 1 of the ECU tester. This has since been replaced with version 2. […]
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 […]
