Home/Dodge/Ram Van/Dodge Ram Van II (1979-1993)/Repair manual/3.7l &5.2l Efc System/Test Code 93

Contents

Section: 3.7l &5.2l Efc System

DESCRIPTION

OPERATION

CODE-TO-TEST MENU

FUEL CONTROL

ELECTRONIC THROTTLE CONTROL

SPARK CONTROL

Start Mode

Run Mode

Advance From Vacuum

Advance From Speed

DATA SENSORS

Magnetic Pick-up Assembly

Coolant Temperature Sensor/Switch

Vacuum Transducer

Carburetor Switch

Oxygen (O2) Sensor

Charge Temperature Switch

Coolant Temperature/Charge Temperature Sensor

SPARK CONTROL COMPUTER

Open Loop

Closed Loop

Electronic Exhaust Gas Recirculation (EGR)

Electronic Air Switching

CATALYTIC CONVERTER

BASIC TEST PREPARATION

ENTERING ON-BOARD DIAGNOSIS

FAULT CODE IDENTIFICATION

Code 00

Code 88

Code 55

Code 11

Code 12

Code 13

Code 14

Code 17

Code 18

Code 21

Code 22

Code 23

Code 24

Code 25

Code 26

Code 28

Code 31

Code 32

Code 33

ACTUATOR TEST CODES

Code 91

Code 92

Code 93

Code 97

Code 98

SENSOR READ TEST CODES

Code 96

SWITCH TEST CODES

NS1 - CHECKING FOR SPARK AT PLUG WIRES

NS2 - CHECKING FOR FUEL IN CARBURETOR

NS3 - FUEL FOULED SPARK PLUGS CHECK

NS4 - ENGINE TIMING CHECK

NS6C - DISTRIBUTOR DUAL PICK-UP COIL RESISTANCE CHECK

DR1B - CHECKING COMPUTER CONTROLLED COMPONENTS

Test Code 92

Test Code 93

Test Code 97

Test Code 98

DR1D - INTERMITTENT FAILURES

DR12 - FAST IDLE CAM LINKAGE & CHOKE CHECK

DR13 - CHOKE VACUUM KICK CHECK

DR14 - HEATED AIR INTAKE SYSTEM CHECK

Fed. 3.7L With A/T & Fed. 5.2L

All Models (Except Fed. 3.7L With A/T & Fed. 5.2L)

DR16 - EGR OR CANISTER PURGE CVSCC VALVE CHECK

DR17 - CHOKE POSITION WITH ENGINE RUNNING CHECK

DR18 - FUEL FOULED SPARK PLUGS CHECK

Fed. 3.7L With A/T & Fed. 5.2L Models

All Models (Except Fed. 3.7L With A/T & Fed. 5.2L Models)

DR23 - CANISTER PURGE SYSTEM CVSCC VALVE CHECK

DR25 - HEATED AIR INTAKE SYSTEM CHECK

DR29 - SECONDARY IGNITION SYSTEM CHECK

DR31 - IDLE RPM CHECK

DR32 - SYSTEM & COMPONENT CHECKING

Removal

Installation

Removal & Installation

All sections

Test Code 93 Dodge Ram Van II

3.7l &5.2l Efc System

Test Code 93

Air switching solenoid should start clicking. If air switching solenoid does not click, replace solenoid. With air switching solenoid clicking, press and hold ATM button until the next test code appears.