ECU MAZDA 232 1990 Suplement User Guide

MAZDA 232 1990 Suplement User Guide 232 1990 MAZDA MAZDA https://www.carmanualsonline.info/img/28/57056/w960_57056-0.png MAZDA 232 1990 Suplement User Guide

Page 108 of 677

MAZDA 232 1990   Suplement User Guide -- - 
“- 
I t- 
SQLENOlD VALVE AEAR WINOOW 
(PRESSURE IQNITION HEADLIG t IT 
DEFFIOSTER 
REGULATOR SWITCH SWITCH 
SWITCH 
CONTROL) 
lNJECTOR ELECTRICAL 
MAIN RELAY , FAN 
AX SWITCH 
r DliiGNOSlS BLO

Page 112 of 677

MAZDA 232 1990   Suplement User Guide SUPPLEMENTAL SERVICE INFORMATION, FUEL SYSTEM Fl 
SUPPLEMENTAL SERVICE INFORMATION 
The following points in this section are changed in comparison with Mazda 323 Workshop Manuals 
(I 203-I U-89F, 1204

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MAZDA 232 1990   Suplement User Guide F2 
FUEL AND EMISSION 
CONTROL SYSTEMS 
(WITH CATALYTIC CONVERTER) 
. 
INDEX ..*.........**.*.........*..........*...... F2- 2 
OUTLINE ...................................... F2- 4 
OUTLINE OF CONSTRU

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MAZDA 232 1990   Suplement User Guide F2 OUTLINE 
ECU RELATIONSHIP DlAGRAM [BP TURBO] 
INPUT DEVICE KNOCK SENSOR 
KNOCK 
i( CONTROL 
DlSTRlBUTOR ,-, UNIT 
NC SWITCH 
--k/L SWITCHS 
{REAR WINDOW DEFROSTER SWITCH. 
HEADLIGHT SWITCH, BLOWER

Page 130 of 677

MAZDA 232 1990   Suplement User Guide TURBOCHARGER CONTROL [BP TURBO] F2 
WASTEGATE CONTROL 
The engine control unit controls the wastegate solenoid valve to give higher boost to the engine in the higher 
rpm range, increasing engine torq

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MAZDA 232 1990   Suplement User Guide F2 FUEL SYSTEM 
FUEL VAPOR VALVE 
FUEL VAPOR VALVE 
93GOF2-722 
The fuel vapor valve is installed in the fuel tank to allow fuel vapors within the tank to escape to the charcoal 
canister. 
The fuel v

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MAZDA 232 1990   Suplement User Guide FUEL SYSTEM F2 
Two-stage WeI pump operation 
Engine running (Except heavy load or cranking) 
The ECU 1 I circuit is ON, opening the contact plate in the fuel pump resistor/relay. Current from the cir

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MAZDA 232 1990   Suplement User Guide F2 FUEL SYSTEM 
93GOF2-726 
FUEL PUMP RESISTOR/RELAY [BP TURBO] 
The fuel pump resistorlretay supplies battery voltage to the 
fuel pump when the ECU 11 circuit is OFF, and approx. 1 OV 
when the ECU

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MAZDA 232 1990   Suplement User Guide CONTROL SYSTEM 
WE~DOST WARNlNG BUZZER [BP TURBO] 
To improve engine reliability, the overboost warning buzzer installed in the instrument cluster sounds during 
overboost conditions as detected by en

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MAZDA 232 1990   Suplement User Guide F2 CONTROL SYSTEM 
KNOCK CONTROL SYSTEM [BP TURBO] 
This svstem retards the ignition timina when enaine knocking occurs because of usage of low octane fuel, etc. 
1NTAKE 
MANIFO 
KNOCK SENSOR 
(INSTAL
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