CC260E,
That is correct. MB bought the Constant Injection System from Bosch in 1976. It was the first version and worked on air sensor plate position to adjust fuel amount to match air flow. There was a warmup regulator that lowered control pressure for a cold engine and acted like a choke. To increase power, increase fuel mileage, and reduce emissions engineers developed the oxygen sensor. This sensor that is in every modern car continually monitors oxygen in the exhaust and through the CIS computer trims the fuel quantity. You can remove the computer and you will have the basic 1976 system. The car won't run very well cold and power and mileage will suffer, but you can drive the car. The same goes for ABS. While working on the electronics on my mother's 89 190E 2.6, the ABS computer kept getting in my way, so I took it out and put it in the trunk. The ABS light stayed on and ABS was not available, but the brakes worked fine.

Peter

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