Guido Posted August 4, 2020 Report Share Posted August 4, 2020 The car is a Skyline R33-GTR running on the MAP sensor While using the "mixture map" i noticed that the data from the wide band sensor is delayed referenced to the MAP and all the other data. (At idle this delay is around 1", partial load around 0.2" This is normal as the wideband sensor is mounted relatively far down the exhaust system. in front of the cat. Apparently this is needed to prevent an early death of the sensor. Now i am wondering if this has an influence on the corrections the mixture map makes. And i suppose this can also influence closed loop operation. (making it unstable at idle?) I looked for a compensation of this delay but could not find one. I am trying to prepare the car for an emission test. The two original narrow band sensors are still in place. Perhaps i can re-activate those for <4000rpm. All comments are welcome. Uncle Guido Quote Link to comment Share on other sites More sharing options...
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