Universal o2 simulator dual output
[unv-o2sim2]

Item worked as advertised on my 03 Mazda MPV. The most difficult part was patching it into the existing wiring, that took the better part of an entire afternoon. I had to search the web for the wiring diagram for the MPV O2 sensors as the documentation provided with the unit was far too generic. The LED status light on the simulator was very helpful as it reassured me that power was properly connected during the installation. After installation was complete, I took a look at the simulator waveform on my Autoengenuity OBD scan tool and it looked just like the real thing. This product was a real life saver.