Скачать с ютуб 555 Narrowband O2 sensor simulator в хорошем качестве

555 Narrowband O2 sensor simulator

I built the Narrowband O2 sensor simulator found at: http://mkiv.com/techarticles/oxygen_s... This is designed to simulate the post-cat secondary O2 (Oxygen) sensors. Proven to work on older OBDII models, follow-up on my install in 2003 Lexus IS300 at http://www.chippernut.com/ One important thing to note: the schematic at that site omitted one thing, you should tie PIN 4 on the 555 timer to power (I connected it to pin 8). Otherwise it may stop and/or reset to minuscule EMF/input voltage variations.