Ignition and engine management system Ford Scorpio 1

Ignition and engine management systems — general information
The ignition system is designed to ignite the working mixture in the engine cylinders with a spark discharge, which must be created at a strictly defined moment. The ESC...

Specifications of the ignition system
Ignition sequence OHC and DOHC engines 1–3–4–2 V6 engine 1–4–2–5–3–6 Type of ignition system Engines with carburetor ESC II Engines with fuel injection system ESC IV...

ESC II Ignition System — Design Description
Block diagram of the ESC II control system The ESC II carburetor and ignition control system includes an electronic control unit, an ignition coil, an ignition...

EEC IV ignition system — design description
Block diagram of the EEC IV control system The EEC IV ignition system is similar in function to the ESC II system and is installed on engines with a fuel injection...

Ignition distributor
OHC Engine Ignition Distributor 1 - cover, 2 - distributor rotor, 3 - ignition distributor, 4 - sealing ring, 5 - connector DOHC Engine Ignition Distributor 1 - lugs of...

Checking the ignition timing
All engines except DOHC OHC engine ignition timing scales Ignition timing scale and V6 engine label 1 - scale for setting the ignition moment, 2 - pulley with a label...

Ignition unit (models with fuel injection system)
OHC and V6 engines 1. Remove the negative cable from the battery. 2. Disconnect the multi-pin connector from the ignition distributor. 3. On V6 models, apply alignment...

Ignition coil
Ignition coil 1 - ignition coil, 2 - fastening screw, 3 - high-voltage wire The ignition coil is mounted on the left front side of the engine compartment and is secured...

Fuel trap on carbureted engines
On engines with a carburetor, the fuel trap is installed in a vacuum pipe between the intake manifold and the ESC II block. 1. Remove the negative cable from the...

The engine control unit
Attention! From January 1987 on the 1.8 dm 3 engine, a smaller, newly designed ESC II hybrid unit was installed. Engine control unit installed from January 1987 on a 1.8...

Carburetor stepper motor
Attention! Uneven and unstable idle speeds do not always indicate the failure of the stepper motor. First you need to check the reliability of contact between the...

Intake manifold heater for engines with a carburetor
Attention! Do not remove the intake manifold heater when it is hot. 1. Remove the negative cable from the battery. 2. To improve access, remove the air filter housing....

Engine management relay
Engine management relay 1 - power relay, 2 – the relay of the device of heating of an inlet collector All relays are located behind the instrument panel. Access to the...

Setting the ignition timing and idle speed
Octane pitch connector The connector is indicated by an arrow. Arrangement of elements of regulation of a delay of ignition 1 - grounding point (ignition coil screw), 2...

RPM and crankshaft position sensor
RPM and crankshaft position sensor (bottom view) The sensor is located on the right rear side of the cylinder block, behind the oil filter. 1. Remove the negative cable...

Air temperature sensor
Air and fuel temperature sensor 1 - air temperature sensor, 2 - fuel temperature sensor The air temperature sensor is located in the upper section of the intake manifold...

Fuel temperature sensor
Air and fuel temperature sensor 1 - air temperature sensor, 2 - fuel temperature sensor On a DOHC engine, the fuel temperature sensor is located at the top of the fuel...

Vehicle speed sensor
The sensor is located on the left side of the gearbox. 1. Remove the negative cable from the battery. 2. Access is most accessible from below the car. Raise the front of...

Manifold absolute pressure (MAP) sensor
Manifold absolute pressure sensor (MAP) vehicles equipped with a catalytic converter The sensor is located on the right front side of the engine compartment. On V6...