ENGINE AND EMISSION CONTROL PARTS DESCRIPTION

EF & EC-13prose procedure

Carbon Canister section noted as 'For catalyzer model' only.

Detonation Sensor

The detonation sensor is attached to the cylinder block and senses engine knocking conditions.

A knocking vibration from the cylinder block is applied as pressure to the piezoelectric element. This vibrational pressure is then converted into a voltage signal which is delivered as output.

Component LocationFig. fig1

Detonation sensor cross-section diagram

Detonation sensor cross-section showing read plate, weight, terminal, and piezoelectric element

SEF626B

1Read plate(upper left)

2Weight(upper center)

3Terminal(upper right)

4Piezoelectric element(lower left)

Pressure Regulator (P.R.) Control Solenoid Valve

The solenoid valve responds to the ON/OFF signal from the E.C.U. When it is off, a vacuum signal from the intake manifold is fed into the pressure regulator. When the control unit sends an ON signal, the coil pulls the plunger downward and cuts the vacuum signal.

Component LocationFig. fig2

Pressure Regulator Control Solenoid Valve cross-section diagram

Pressure Regulator Control Solenoid Valve cross-section showing plunger

SEF016F

1Plunger(upper left)

Fuel Filter

The specially designed fuel filter has a metal case in order to withstand high fuel pressure.

Component LocationFig. fig3

Fuel filter cross-section diagram

Fuel filter cross-section showing fuel outlet (top) and fuel inlet (bottom) with internal filter element

SEF256A

1Fuel outlet(top)

2Fuel inlet(bottom)

Carbon Canister (For catalyzer model)

The carbon canister is filled with active charcoal to absorb evaporative gases produced in the fuel tank. These absorbed gases are then delivered to the intake manifold by manifold vacuum for combustion purposes.

Check Connector for E.C.C.S. Checker Box

The check connector for E.C.C.S. Checker Box is in the vicinity of the fuse box.

Component LocationFig. fig4

Check connector and Checker Box location photograph

Check connector and E.C.C.S. Checker Box location photograph showing check connector near fuse box area

SEF409H

1Check connector(left)