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Posted

Hello, i have a problem with my car. Idle is not stable. Seems like lambda correction, but i have tried to disable lambda, idle actuator and working only with ignition and fuel maps it continues failing. Any of you with base maps for this car to try? Thank you and excuse my poor english.

Posted

Sounds like a tuning issue to me!  While you are trying to sort out this problem, turn Closed Loop Lambda OFF and also set Idle Speed Control to Open Loop.  Tune the fuel and ignition maps for stable mixture around idle.  If you cant get the engine to run smoothly at that point then there may be another problem!

Posted

No, too 15 degrees ignition will not be the problem.  Make sure there is no large changes in fuel and igntiion numbers around idle.  Also make sure that the overrun fuel cut is not becoming active.  Have you set your base timing properly?  What mixture are you running at idle?

  • 3 months later...
  • 2 months later...
Posted

If you have a LEMG3 then the MAP sensor is not wired as such. It is an on-board sensor so needs a hose run from the engine side of the throttle butterfly to the sensor which is next to the main plug on the ECU.

Simon

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