10-14-2019, 12:35 AM
for sure fixing frigid is first,
if the engine hits 150f from 180f say it dropped 30f degrees the ECU goes cold start mode and races idle and or the IAC thermal idle speed controller just below the TB opens at 150F
the ECU knows that rule too and changes mode, and idle goes high,
so as I always say fix idle controls last.
180f and holding is always FIRST to fix if not holding as it must, on all EFI cars made. (unless new cars with 200f stat)
if the engine hits 150f from 180f say it dropped 30f degrees the ECU goes cold start mode and races idle and or the IAC thermal idle speed controller just below the TB opens at 150F
the ECU knows that rule too and changes mode, and idle goes high,
so as I always say fix idle controls last.
180f and holding is always FIRST to fix if not holding as it must, on all EFI cars made. (unless new cars with 200f stat)
http://www.fixkick.com