October 12, 2021 – Throttle switch warning!!!!

A couple of days ago, I described the Throttle Switch (TS) used on the fuel injected SMs. The TS is also known as a Throttle Position Sensor or TPS to some people. The original Bosch part number for the TS that came on the cars from the factory was 0280120011 (according to the Citroen factory […]

October 10, 2021 – Throttle Switch Demystified

All cars that use D-Jetronic Fuel Injection use a “Throttle Position Switch” or “Throttle Switch” (TS) made by Bosch. There are different models of the switch for different cars, but they are all effectively the same internally. Back when D-Jetronic was still current (1960s-1970s), if a TS failed, it would simply be removed and replaced […]

October 6, 2021 – Hidden Bluetooth AMP 3.0

Back in 2019, I created a prototype hidden Bluetooth stereo using an old ashtray. I refer to that as version 1.0. It wasn’t pretty, but it was intended as an experiment. In 2020, I implemented a cleaner solution that I call version 2.0. I have built a few of these for other SM owners. A […]