Looks like coolant temperature is already not less than 50 deg C, before starting this test, and it takes 700 seconds to reach 80 deg C. Correct?. M271 just started RPM, for 1st start in the morning here, is usually 1100rpm and takes about 1+ minute to drop to 850rpm with air conditioning switched on. M271 coolant temperature, before 1st starting, in early morning here is normally not less than 23 deg C. So, at 850rpm idling the coolant should between 72 to 80 deg C after 700 seconds, correct?. Btw what is M271 coolant minimum vs maximum temperature at constant speed of 100km/hr and air ambient temperature at 32 deg C?. Understanding is that BMW cars coolant temperature is set 10 deg C higher than Mercedes. Correct?. I have lufi obd2 plug & display. On just started up the MAF value is above 16g/second. After warm up it drops to at 5.4g/second, 850rpm, air intake pressure at 0.50atm. Best estimation of air + fuel vapour pressure in cylinder when piston at DBC is about 0.4 to 0.45 atm. The O2 sensor voltage tends to be around 0.65 to 0.8. It did not have the typical cycle pattern from 0.8v to 0.2volt every few seconds as shown in some U tube - but it is for other cars. Can you shows the pattern of voltage of O2 of M271?. LUFI XF OBD2 looks like a generic obd for hobbist. Could not show EGR % opening of M271 engine but could shows EGR % for Honda. Thanks in advance.
Looks like coolant temperature is already not less than 50 deg C, before starting this test, and it takes 700 seconds to reach 80 deg C. Correct?.
M271 just started RPM, for 1st start in the morning here, is usually 1100rpm and takes about 1+ minute to drop to 850rpm with air conditioning switched on.
M271 coolant temperature, before 1st starting, in early morning here is normally not less than 23 deg C. So, at 850rpm idling the coolant should between 72 to 80 deg C after 700 seconds, correct?.
Btw what is M271 coolant minimum vs maximum temperature at constant speed of 100km/hr and air ambient temperature at 32 deg C?.
Understanding is that BMW cars coolant temperature is set 10 deg C higher than Mercedes. Correct?.
I have lufi obd2 plug & display. On just started up the MAF value is above 16g/second. After warm up it drops to at 5.4g/second, 850rpm, air intake pressure at 0.50atm. Best estimation of air + fuel vapour pressure in cylinder when piston at DBC is about 0.4 to 0.45 atm. The O2 sensor voltage tends to be around 0.65 to 0.8. It did not have the typical cycle pattern from 0.8v to 0.2volt every few seconds as shown in some U tube - but it is for other cars. Can you shows the pattern of voltage of O2 of M271?. LUFI XF OBD2 looks like a generic obd for hobbist. Could not show EGR % opening of M271 engine but could shows EGR % for Honda. Thanks in advance.