Thread: Why cold start?
View Single Post
Old 06-18-2022, 08:03 AM   #11
tomm.brz
Senior Member
 
Join Date: Jan 2017
Drives: brz 2017 hksv2
Location: italy
Posts: 2,280
Thanks: 515
Thanked 1,121 Times in 811 Posts
Mentioned: 70 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by RToyo86 View Post
That's just idle speed and timing adjustments as Tomm mentioned. It's still coded in just not OEM specs. After a certain amount of time you will see the idle speed and timing change.

Standard RPM is around 1500 and timing is around 11° retarded. OFT adjust idle speed around 1100 and timing closer to 0°

Late models have actually around -19/-20 of advance timing, that's the software reachable limit for the ecu
Probably to get faster hot temp in exhaust when you crank on the car
Exhaust temp climbs really fast from ambient to more than 600 Celsius in like half a minute
tomm.brz is offline   Reply With Quote
The Following User Says Thank You to tomm.brz For This Useful Post:
RToyo86 (06-18-2022)