Idle Air Control (Iac); Outline; Egr Control; Operation Conditions - Mazda premacy Training Manual

IDLE AIR CONTROL (IAC)

OUTLINE

The IAC of the PREMACY FP engine model is the same as that of the 323 (BJ) FP engine models.
D
Idle Speed
A comparison of the idle speeds for PREMACY FP engine model and the 323 (BJ) FP engine models is as
D
shown in the following table.
Condition
No load
*1
A/C is operating.
Electrical load is on. Electrical load is on
P/S is operating.
(Steering wheel is rotating.)
*1
: A/C switch and fan switch are on.
*2
: Headlight is on, Fan switch is above 1st, Cooling fan is operating, and Rear window defroster is on.

EGR CONTROL

OUTLINE
The EGR control of the PREMACY FP engine model is essentially carried over from the 323 (BJ) FP engine
D
models except for operation conditions.
The EGR control of the PREMACY FP engine model is the same as that of the 323 (BJ) FP engine models.
D

OPERATION CONDITIONS

The EGR control carries out the EGR operation when all of the following conditions are satisfied:
D
(1) Except cranking
(2) Except idling
(3) Engine speed is between 1000 rpm and 4093 rpm.
(4) Except heavy load volume increase zone (fuel injection control)
(5) Vehicle speed is above 3.8 km/h {2.4 MPH}.
Within 30A 40A
*2
40A or above
Idle speed (rpm)
PREMACY
MTX
750
750
F1-21
323 (BJ) 323 (BJ)
ATX
700
750
700
750
700