Mallory Ignition 74030 User Manual

Installation Manual

For The Ford ACCEL

Digital Fuel Injection

Engine Management

System

Part #74030

The Mr. Gasket Performance Group

Cleveland, Ohio

216.398.8300

www.mrgasket.com

ACCEL/DFI

Prior to starting the installation of your ACCEL DFI system, read this manual carefully!!

Contents Pages

Introduction 1

I) Obtaining Your Manifold 2

II) Setting Up Your Manifold 2

III) Mounting Your ACCEL ECM 4

IV) Injector Harness Installation 5

V) Main Wire Harness Routing And Connections 5

VI) Choosing Your Distributor 9

VII) Fuel Pump Mounting and Fuel Line Installation 13

VIII) Mounting The Oxygen Sensor 19

IX) Air Cleaner Assembly 20

X) Starting The Vehicle 20

XI) Optional Items 21

XII) Trouble Shooting Guide 23

Some parts are not legal for sale or use in California or on any pollution-controlled motor vehicle.

ACCEL/DFI

INTRODUCTION

CONGRATULATIONS! You have just purchased the finest engine management system available. EFI control is an exact science that ACCEL has made simple. This manual is written to assist you with the installation of your new system to your FORD application. Please read this manual carefully.

Prior to starting your installation, please verify the contents of your ACCEL DFI package. You should find the following components:

Quantity Component

(1) Electronic Control Module (ECM) (1) Main Wiring Harness (MWH) (1) Injector Wire Harness (IWH) (1) Manifold Absolute Pressure (MAP) sensor (1) Heated Oxygen Sensor with mounting nut (1) Coolant Temperature Sensor (CTS) (1) 6 way to 4 way TFI adapter harness (1) Throttle Position Sensor (TPS)

conversion connector (1) Idle Air Control (IAC) Motor (1) Idle Air Control (IAC) Motor Housing (1) IAC Motor Housing Adapter Plate (1) IAC Adapter Plate with gasket and screws

If your are missing any item , please contact your dealer immediately.

ACCEL/DFI

Although this package is designed to allow you to convert a carbureted engine to fuel injection or allow you better control over your present fuel injected engine, it does not include the hydraulic portion of the installation. If you need a fuel pump, filter, fittings, etc. contact your local ACCEL EMIC center for the proper ACCEL DFI part numbers for your application.

I. OBTAINING YOUR MANIFOLD

Currently ACCEL DFI only has manifolds for Chevrolet applications, for your Ford application you may use an OEM or aftermarket fuel injection manifold. Talk to some of our ACCEL DFI’s EMIC centers for fabricating or modifying a carbureted style manifold for your application. ACCEL DFI EMIC Centers can also sell, install, and tune all ACCEL DFI products. For the nearest dealer to you please call:

1.800.992.2235.

II. SETTING UP YOUR MANIFOLD

Prior to installing your manifold make sure that all gasket surfaces are clean. ACCEL recommends using a 180 degree thermostat in most applications. Place your thermostat and gasket onto your manifold, put your thermostat housing onto the manifold and bolt in place. When installing your fuel injectors, be careful not to cut the O-Rings. A small amount of oil on each O-Ring will aid in the assembly. Please reference a service manual for proper torque sequence and vacuum line routing. If this is a custom manifold, please contact your fabricator for this information.

NOTE: It is recommended at this point to use a hole saw (i.e. Green Lee punch) to put two (2) 1-5/8” diameter holes in the firewall to accommodate the main wiring harness. Please refer the figure below.

TPS Sensor

IAC Motor

MAP Sensor

Main Wire

Harness

ACCEL/DFI

1-5/8 Hole thru firewall

for grommet in main

harness - 2 places

Main Wire

Harness

Manifold Vacuum

to MAP Sensor

Manifold Vacuum to

Pressure Regulator

Manifold Vacuum to Automatic

Transmission Modulator

Additional Manifold Vacuum

Sources. (Plug all vacuum

sources not used)

PCV Valve

Vacuum Line

Manifold Vacuum

to Power Barke

Booster

ACCEL/DFI

IAC Adapter Plate

Bolt Size

IAC Housing

Bolt Size

Throttle Body

IAC Gasket

IAC Valve

III. MOUNTING YOUR ECM

The ECM comes with three (3) mounting tabs designed for a #8 sheet metal screw. It is recommended that you mount the ECM in the passenger side kick panel. If the kick panel has an air vent incorporated into it, DO NOT mount the ECM here. This unit is not waterproof and therefore needs to be mounted in a location free of moisture. The alternate locations are in the dash board and behind the glove box. NEVER MOUNT THE ECM IN THE ENGINE COMPARTMENT!

ACCEL/DFI

IV. INJECTOR HARNESS INSTALLATION

This ACCEL DFI system is simultaneous double fire, therefore it does not matter what injector connector goes to what injector. For your convenience the connectors are paired in sets of two, similar to the way the injectors are mounted in the manifold. Lay the injector harness so that it lays naturally on the manifold. Clip the connectors onto the fuel injectors making sure that the metal clips snap into place.

V. MAIN WIRE HARNESS ROUTING

AND CONNECTIONS

An overview diagram of the main wiring harness is shown at the end of this section. Please reference this when making the connections between the ECM and the corresponding sensors/components. The harness can be routed and connected as follows: Begin by connecting the 32 pin and 24 pin ECM connectors to the ACCEL DFI ECM, making sure that the tabs snap into place. Then route the longer of the

ACCEL/DFI

two legs through the drivers side firewall hole that you cut in step two followed by the shorter leg though the passenger side firewall hole. Continue pulling the harness legs through the firewall until the rubber grommets seat themselves in the firewall. Once the grommets have been properly seated into the firewall, each leg can be routed between the manifold and the valve covers.

The drivers side leg will contain connectors for the following:

• MAP (3-pin green male connector)

• Computer Controlled Ignition (4-pin male black connector, for a TFI you will use the TFI adapter)

• ESC (purple wire, bare lead)

• Air (2-pin gray connector)

• Coolant (2-pin black connector)

• TPS (3-pin black male connector)

Make sure to connect the switched +12 volt wire (long pink wire with a female spade connector) to a switched ignition accessory in the fuse box. The switched ignition accessory MUST maintain 12 volts during cranking. If it does not, the vehicle will not start.

NOTE: If you are not controlling timing with the ACCEL DFI ECM (using a non-computer-controlled ignition system such as a points distributor) you will not be using the computer-controlled ignition connector (4-pin male black connector) or the ESC connector (purple wire with bare lead).

The passenger side harness leg will contain the following sensor connections:

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