I read just about everything regarding the lambda delete thread, even went over to the Triumph forum for more. It is interesting to see so many different opinions. My personal view is that a proper system should use a wideband sensor, the narrow band should have never been considered, however I have a little time to experiment I am considering unplugging my O2 sensors and adding in the resistors of the delete thread. I have no plans of totally removing the sensors and the test will be of short duration, don't expect problems with the sensors by leaving them plugged in for a few short runs. Since the plan is to use my own resistors I started paying attention to the values of the resistors and I found some serious discrepancies:
Back in April of '18 it is said that a 1megohm resistor is placed across the heater wires of the sensor, the signal wires have a 330 ohm resistor connecting them. In the Triumph forum the information is quite different: The 330 ohm resistor is said to be connected to the heater and the 1meg resistor to the signal. That seems to be quite a large value for a signal resistor. Later on the value of the signal resistor dropped down to 1kiloohm!!!! This definitely does not compute! The signal resistor can not arbitrarily be changed by a factor of 1000. Another issue is that the reason the "heater" side connection exists is to prevent a "check engine" light, but, when looking at the wiring diagrams, the "heater" connection is totally independent and gives no signal of any sort to anything, the relay just turns the juice to the heater.
Can anyone more knowledgeable on these issues please chime in?
Thanks in advance,
d.
Back in April of '18 it is said that a 1megohm resistor is placed across the heater wires of the sensor, the signal wires have a 330 ohm resistor connecting them. In the Triumph forum the information is quite different: The 330 ohm resistor is said to be connected to the heater and the 1meg resistor to the signal. That seems to be quite a large value for a signal resistor. Later on the value of the signal resistor dropped down to 1kiloohm!!!! This definitely does not compute! The signal resistor can not arbitrarily be changed by a factor of 1000. Another issue is that the reason the "heater" side connection exists is to prevent a "check engine" light, but, when looking at the wiring diagrams, the "heater" connection is totally independent and gives no signal of any sort to anything, the relay just turns the juice to the heater.
Can anyone more knowledgeable on these issues please chime in?
Thanks in advance,
d.