If you have discussed Fiero's with other Fiero nuts, you've probably noticed
that a lot of abbreviations were used. Here is a list and a short explanation
of the most commonly used abbreviations.
Used at assembly to evaluate Computer Command Control, and for service to flash the
"Service Engine Soon" or "Check Engine" light if there are trouble codes. It's also used
by "Scan tools" to obtain ECM serial data.
Describes ECM fuel control when using oxygen sensor information.
Device that senses the engine coolant temperature, and passes that information to the
Engine Control Module.
Produces the ignition spark without the aid of an ignition distributor.
A metal case (located in passenger compartment) containing electronic circuitry
which electrically controls and monitors air/fuel and emission systems on
computer command control and turns "ON" the "Service Engine Soon" or
"Check Engine" light when a malfunction occurs in the system.
Computer Command Control using throttle body fuel injection.
Method of reducing NOx emission levels by causing exhaust gas to be
added to air/fuel mixture in combustion chamber, thus cooling combustion.
A valve installed in the throttle body of fuel injected systems and controlled
by the ECM to regulate idle speed.
Regulates throttle valve position to control idle speed. Idle speed is
controlled by the ECM and is not adjustable.
Reads pressure changes in intake manifold with reference to zero pressure.
It puts out a voltage which is highest when the pressure is highest.
The maximum voltage is between 4 and 5 Volts.
Measures temperature of air in the intake manifold.
Individual injectors for each cylinder are mounted in the intake manifold.
The injectors are fired in groups rather than individually.
Device, installed in carburator, to regulate the air/fuel ratio.
Describes ECM fuel control without use of oxygen sensor information.
Unit, controlled by ECM to supply precise air/fuel mixture into the intake manifold.
Device that tells the ECM the throttle position.
Registration number that uniquely identifies a vehicle.
Sensor which sends vehicle speed information (pulses per mile) to the ECM.