Hi there!

The winter is coming (c) GOF :)

My CR engine lowers coolant temp at idle speeds.
it's not Ok for me living in Siberia Russia

The reason is that EGR is not working. That's Ok for me living in Siberia.

The goal - raise the coolant temperature at idle speed w/o egr feature.

My data

idle speed 650
SOI 7.5 ATDC
Pilot iq 2.5 -> 443 us -> 1.7 CAD
Pilot interval 1 ms -> 4 CAD
Fuel pressure 32 Mpa
IQ 10...20 mm3/stroke
IQ time 0.78....1 ms depens on IQ -> 4CAD maximum

What should I do? Raise the pilot interval to 2 ms or what?

Thank you for your thoughts!