Recent content by klatinn

Hi, Just as an additional note: With the LM-1/LC-1 the analog outs are programmable. So you can simulate a NBO2 sensor at ANY switchpoint, not only stoichiometric. For example if programmed to simulate a NBO2 at 15.2-15.4 switchpoint you run at a lower BSFC level, saving gas. Would not...

Hi Norbs, I sometimes lurk on other forums as well. Trying to correct misinformation :biggrin: . Loosing battle, I know, but I like cars too much to let them go to waste because of wrong data. Regards, Klaus

Yes, thats right. If you leave the AFR multiplier alone you tune to the same AFR value. Just keep in mind that that number then is not really the mass-ratio of air and fuel (AFR), but Lamba multiplied with a convenient factor. Also, you need to retune when changing between blended and unblended...

Hi Norbs, Yes, I know it's confusing when you are thinking in AFR. For people thinking in Lambda it's crystal clear. The LM-1, like all widebands, measures Lambda, not AFR. For display purposes it then multiplies the measured Lambda value with the programmed AFR value. On many widebands...

Hi Norbs, Be careful with that suggestion. The AFR you specified is only true if your wideband is also set to corrected stoich AFR for the blended fuel. Most widebands use a fixed multiplier of 14.7 to calculate AFR from Lambda and can't be programmed. Therefore on those you should not target...

Hi, It's all really simple. A Narrowband sensor does not care about heat or back-pressure very much. It just needs to be at it's minimum temp (~300 C) to operate. It switches at 14.7 AFR between a low voltage (lean) and high voltage (rich). That's all it does. If people post that they have...

Hi Bruce, I am talking about the internal delay of the sensor between a change of pump current to change of measurement cell output for a constant AFR gas, not the delay between gas change and measurement cell output. The delay I stated is the impulse response of the control input (pump...

Hi, I forgot to comment on the differences between NTK and Bosch sensors: 1. Response speed Measured by the sensors own response delay between pump cell and sense cell: Bosch <5 msec NTK ~50msec 2. Back Pressure sensitivity Bosch sensor has about 1/3 the NTK's pressure...

Hi, Regarding Bosch LSU4.2 location: The Bosch LSU4.2 sensor has a specified housing temperature (at the bung) of max 560C. Exceeding this can cause problems because the heater in the sensor can no longer be precisely controlled. It does not destroy the sensor (typically), but AFR readings...