O2 Simulator - Single or Dual
O2 Simulator - Single or Dual
This unit allows you to SIMULATE the secondary O2 sensors on your OBD-II car. This is particularly useful if you replace your factory pre-cats and end up with the Check Engine Light (CEL) coming on. The first sensors just past the turbos are required for actually managing the air/fuel, but the second sensors after the pre-cats are there just to check if the cat is doing its job (which is why sometimes you get the CEL after removing the cats). This simulator wires in with the secondary sensor(s) and essentially tricks the cars computer into thinking the sensor is working properly (i.e., cats are still there), ultimately preventing the CEL.
Choose between the single or dual version depending on how many O2 sensors you have. Single-sensor cars (pre-OBD-II) can't use these. Cars with 2 sensors (1 primary and 1 secondary, not 2 primary) will use the Single version. Cars with 4 sensors (2 primary, 2 secondary) will need the dual simulator.
Note: You only need one simulator to supplement both secondary sensors on the 3000GT/Stealth. You can not eliminate the secondary sensors, this is a piggy-back application.
NOTE2: You can NOT eliminate the secondary sensor(s), they must still be installed in the car to generate a sensor reading, the O2 Simulator alters the signal sent to the ECU, but it must have a sensor signal to work with.
O2 Simulator - Single
O2 Simulator - Dual
