The ad is pure ********.
First, they can't even speak straight about the warranty. They say lifetime...they say ten years.
Second, the ONLY thing that can be done in the O2 line is to slightly adjust the CLOSED LOOP air/fuel ratio. Once you go WOT the mass airflow sensor and the internal tables in the EEC set the fuel, the oxygen sensors inputs on the EEC are NOT EVEN USED!!!!
Those guys are just ripping people off. My bet would be they have a ten cent resistive divider inside a can. This would make the engine slightly richer when in closed loop, like at light throttle on a warm engine. It has to be something like that because the O2 sensor is a scalar voltage that bounces high or low when rich or lean. It is always bouncing around. The only change possible is to raise or lower the voltage the O2 centers around.
The flaw in their lies is when the TPS input or engine loading goes high, the computer ignores the O2 sensors inputs. You can take the O2 wires off during heavy loading or short them and the car will run exactly the same at WOT.
So they are liars. And I'm being nice because I'm in a good mood.
Tom
First, they can't even speak straight about the warranty. They say lifetime...they say ten years.
Second, the ONLY thing that can be done in the O2 line is to slightly adjust the CLOSED LOOP air/fuel ratio. Once you go WOT the mass airflow sensor and the internal tables in the EEC set the fuel, the oxygen sensors inputs on the EEC are NOT EVEN USED!!!!
Those guys are just ripping people off. My bet would be they have a ten cent resistive divider inside a can. This would make the engine slightly richer when in closed loop, like at light throttle on a warm engine. It has to be something like that because the O2 sensor is a scalar voltage that bounces high or low when rich or lean. It is always bouncing around. The only change possible is to raise or lower the voltage the O2 centers around.
The flaw in their lies is when the TPS input or engine loading goes high, the computer ignores the O2 sensors inputs. You can take the O2 wires off during heavy loading or short them and the car will run exactly the same at WOT.
So they are liars. And I'm being nice because I'm in a good mood.
Tom
