OMKAR BHALERAO

Normal or Abnormal behaviour of a CRDi Engine?

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We have a setup of CRDi Engine with Open ECU wherein we are studying effect of INJECTIONS on emissions.
In order to increase speed we need to change the accelerator pedal position, for 0 to 18% change in pedal speed increases from 1075 RPM to 2200 RPM for single injection, but when MULTIPLE INJECTIONS i.e PILOT and POST injections are turned on, speed increases from 1300 RPM to 2000 RPM for particular accelerator pedal position of 16%. So what can be the reason for this?

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