Ford Fuel Injection, Electronic Engine Control 1980-1987: How to Understand, Service, Modify

The Ford Fuel Injection, Electronic Engine Control 1980-1987 repair/how-to book, written by Charles Probst and published by Bentley Publishers, will show you how to service and modify your fuel injection system.

This Bentley manual is a hands-on guide for do-it-yourselfers and pro mechanics alike. It is intended to help you understand, service and modify your Ford EEC-III or EEC-IV injection system. In addition, the comprehensive troubleshooting sections, packed with service procedures, tips and tricks, will help you master your Ford's engine control system.

Learn the hot set-up for your car or truck. What works, what doesn't, and how to keep your Ford emissions-legal.

The manual covers 1980-1987 Ford models with EEC-III and EEC-IV Multi-Port Fuel Injection, including:

- Escort, Tracer - Tempo, Topaz - Capri - Taurus, SHO, Sable - Capri - Mustang

- Thunderbird - Cougar - Crown Victoria - Grand Marquis - Town Car - Mark VII

- Aerostar - Bronco - Ranger - E-Series Trucks - F-Series Trucks

Book Excerpt: Ford Fuel Injection and Electronic Engine Control 1980-1987... ACTUATORS | IMPLEMENTING CONTROL STRATEGIES

IDLE SPEED CONTROL (ISC) As I discussed in Chapter 2, Idle Speed Control (ISC) is miss-named because it has many functions:

• Controls idle speed according to a variety of engine loads and conditions.
• Acts as an electronic dashpot during deceleration, preventing engine stalling, and preventing too-low air intake that causes excess emissions.
• Provides additional air during starting.
• Retracts at shut-down to prevent engine dieseling.
These extra functions are hidden by the name, Idle Speed Control. What I'm talking about is the amount of air that enters the engine when the driver's foot is off the accelerator. Ford uses three methods of controlling that air:
• ISC-DCM (Idle Speed Control - D.C.Motor). ISC-DCM opens throttle plate(s) slightly from the foot-off accelerator point
• ISC-BPA (Idle Speed Control - ByPass Air). ISC-BPA bypasses air around throttle plate(s)

In general, you'll find DCM on CFI engines and BPA on port injection engines. Exception: 5.0L CFI uses a thermostatic fast-idle cam, similar to one used with carburetors. Such thermostatic fast idle includes a Throttle Kicker (TK). When the Air Conditioner is turned on, TK "kicks" the throttle open slightly to increase the idle speed.

TUNING FOR PERFORMANCE AND ECONOMY

HIGH FUEL PRESSURE MINUSES The benefits of higher pressure are accompanied by some additional concerns, the main one being safety. With fuel lines and connections subjected to higher pressure, naturally you run an increased risk of leaks or outright failure. To ensure reliability, the standard Ford parts are rated for pressures well above the normal operating range but, in theory at least, significantly higher fuel pressures may be a source of problems. Higher fuel pressure may also place an increased demand on the fuel pump. This may be a problem if the pump is expected to operate above its designed delivery pressure.
TURBOCHARGING/SUPERCHARGING Increasing the air flow by turbo/supercharging falls into two categories:

• Adding a turbo or supercharger to a non-turbo engine. For those engines that breathe naturally, you may hear the high-faluting term "Naturally Aspirated"
• Increasing the flow from a factory installed turbocharger. Ford has delivered thousands of Original Equipment (OE) turbos since 1983

No other book gives you this much detailed, proven information. With over 300 pages, including all model-specific wiring diagrams, trouble codes, test specifications, and hundreds of photos and illustrations, this is the manual for Ford enthusiasts, professional repair technicians and high-performance tuners who really want to understand and get the most out of their Ford.

Subject: Ford Fuel Injection, Electronic Engine Control 1980-1987. Service. Modify. How-to Instructions 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987. ISBN-10: 0837603021 | ISBN-13: 9780837603025 | Bentley GFF8