Honda Civic/Acura Integra

since 1994 release

Repair and operation of the car



Honda Tsivik
+ Cars of the Honda Civic and Acura Integra brand
+ Maintenance instruction
+ Routine maintenance
+ Engine
+ Cooling system and heating
+ Power supply system and release
+ Electric equipment of the engine
- Control systems of the engine
   Specifications
   System of onboard diagnostics (OBD) - the principle of functioning and codes of malfunctions
   Removal and PCM/ECM installation
   Check of serviceability of a state and replacement of the sensor of provision of a butterfly valve (TPS)
   Check of serviceability of a state and replacement of the sensor of absolute pressure in the pipeline (MAR)
   Check of serviceability of a state and replacement of the sensor of temperature of the soaked-up air (IAT)
   Check of serviceability of a state and replacement of the sensor of temperature of cooling liquid of the engine (eats)
   Check of serviceability of a state and replacement of the sensor of VMT/provision of a cranked shaft / situation of pistons in cylinders of the engine (TDC/CKP/CYP)
   Check of serviceability of a state and replacement of the sensor of fluctuations of a cranked shaft (CKF)
   Check of serviceability of a state and replacement of the detector of control of electric loadings (ELD)
   Check of serviceability of a state and replacement of the sensor switch of pressure in system of hydrostrengthening of a wheel (PSP)
   Check of serviceability of a state and replacement of the oxygen sensor (l-probe)
   Check of serviceability of a state and replacement of the sensor of a detonation
   Check of serviceability of a state and replacement of the sensor of speed of the movement of the car (VSS)
   System of stabilization of turns of idling - the general information, check of a state and replacement of the IAC valve
   Check of serviceability of a state and replacement of the thermosensitive valve of turns of fast idling (FIT)
   System of a perepuskaniye of the soaked-up air - the general information, check of a state and replacement of a diaphragm of the IAB valve
   System of the operated ventilation of a case (PCV)
   System of recirculation of the fulfilled gases (EGR) - the general information, check of a state and replacement of components
   System of catching of fuel evaporations (EVAP) - the general information, check of a state and replacement of components
   The catalytic converter - the general information, check of a state and replacement
+ gear shifting Box
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment





Control systems of the engine

General information

For the purpose of decrease in level of issue in the atmosphere of the toxic components getting to composition of the fulfilled engine gases as a result of incompleteness of combustion of fuel and also for maintenance of efficiency of return engines and the decrease in fuel consumption considered in the present manual cars are equipped a number of special systems which could be united under the general name of control systems of the engine and decrease in toxicity of the fulfilled gases (see illustrations below).

The scheme of an arrangement of components of control systems of engine/decrease in toxicity of the fulfilled gases in a motive compartment of the car (Civic)

1 — ECM/PCM with the control socket (under the dashboard)
2 — the Detector of monitoring electric loadings (ELD) (under the assembly block of safety locks)
3 — the Sensor of provision of a butterfly valve (TPS)
4 — the Sensor of absolute pressure in the pipeline (MAR)
5 — the Sensor of temperature of the soaked-up air (IAT)

6 — the Diagnostic socket (under the dashboard)
7 — pressure Sensor switch in system of hydrostrengthening of a wheel (in the pressure head line)
8 — the Sensor of fluctuations of a cranked shaft (CKF)
9 — Oxygen sensors (l-probes) (in a collector and the catalytic converter)
10 — the Sensor of temperature of cooling liquid of the engine (eats)

The scheme of an arrangement of components of control systems of engine/decrease in toxicity of the fulfilled gases in a motive compartment of the car (Integra)

1 — ECM/PCM with the control socket (under the dashboard)
2 — the Detector of monitoring electric loadings (ELD) (under the assembly block of safety locks)
3 — the Sensor of provision of a butterfly valve (TPS)
4 — the Sensor of absolute pressure in the pipeline (MAR)
5 — the Sensor of temperature of the soaked-up air (IAT)
6 — the Valve of stabilization of turns of idling (IAC)

7 — pressure Sensor switch in system of hydrostrengthening of a wheel (in the pressure head line)
8 — the Sensor of fluctuations of a cranked shaft (CKF)
9 — the detonation Sensor
10 — Oxygen sensors (l-probes) (in a collector and the catalytic converter)
11 — the Sensor of temperature of cooling liquid of the engine (eats)
12 — the Diagnostic socket (under the dashboard)

It is necessary to carry the following to number of the systems concerning management of operation of the engine and control of toxicity of the fulfilled gases:

   a) System of self-diagnostics;
   b) System of electronic control by the engine (PGM-FI);
   c) Detector of control of electric loadings (ELD);
   d) System of catching of fuel evaporations (EVAP);
   e) Catalytic converter.
   f) System of the operated ventilation of a case (PCV);

Functioning of all transferred systems, anyway, directly or indirectly, is connected with management of decrease in toxicity of the fulfilled gases.

In the Sections given below the general descriptions of the principles of functioning of each of systems are given, and also procedures of diagnostic checks and recovery repair (if that is obviously possible) components of systems which performance lies within qualification of the average amateur mechanic are stated

Before coming to conclusion about refusal of toxicity, any of systems of decrease, attentively check serviceability of functioning of power supply systems and ignition (see Chapters of the Power supply system and release and Electric equipment of the engine). Diagnostics of some of knots of systems of decrease in toxicity demands use special, difficult in application, the equipment and a certain qualification of the personnel, and therefore, its performance will be reasonable to charge to professional mechanics service center of the company manufacturer of the car.

Told above does not mean that service and repair of components of systems of decrease in toxicity in practice are represented exigeant. Do not forget that one of the most common causes of refusals is elementary violation of quality of vacuum or electric communications, and therefore, first of all it is always necessary to check a condition of nipple and electric sockets. The owner of the car can independently and it is rather simple to make a number of checks, and also, in house conditions to execute a set of procedures of routine maintenance of the majority of components of systems, using thus a usual set of the adjusting and metalwork tool.

Do not forget about additional federal guarantee certificates under which components of systems of decrease in toxicity and management of operation of the engine get. Before starting performance of any procedures for repair of knots and details of data of systems, consult about conditions of observance of these obligations in representative office of the Honda company.

Try to observe everything the measures of precautions stipulated in the following Sections when performing service of electronic components of the considered systems. It is necessary to notice that illustrative material can not always correspond in accuracy to real placement of components on the car. Such discrepancies are connected with continuously happening process of modification within a standard design of each model.

Information label of systems of decrease in toxicity of the fulfilled gases (VECI) is fixed in a motive compartment of the car. On a label necessary information on settings and checks of under control systems taking into account all modifications made on the concrete car, and also the scheme of laying of vacuum hoses with identification of various components contains (see an illustration). Before starting service of systems of decrease in toxicity and management of operation of the engine, attentively study data of VECI.