5000CS Turbo L5-2226cc 2.22L SOHC Turbo (MC) (1987)
Intake Air Temperature Sensor: Description and Operation
Intake Air Temperature Correction, Turbo
Fig. 44 Intake Air Temperature Correction For Ignition
When the intake manifold pressure is above 1.0 bar (above 0 psi boost), the intake temperature is used to calculate ignition timing correction. The
normal timing will be either advanced or retarded, depending on intake air temperature. As the temperature increases with increased boost, the ignition
timing will be retarded to prevent detonation, and possible engine damage, Fig. 44.