[Bob Blick] built this simulator from a 555 and few other common parts. Just when I thought I’d seen all the uses for the 555. The oxygen sensor on a cars exhaust is used to determine how efficiently the fuel mixture is to an engine. These can be a real pain to replace, so it can be helpful to fake the signal to the ECU.
O2 sensor simulator
November 14, 2006 By 17 Comments