S13S13

PRECAUTIONS

EF & EC-3prose procedure

Model with catalyzer noted for battery terminal disconnection memory reset behavior.

E.C.U.

  1. 1
    Do not disassemble E.C.C.S. control unit. (E.C.U.)
  2. 2
    Do not turn diagnosis mode selector forcibly.
  3. 3
    If a battery terminal is disconnected, the memory will return to the ROM value. The E.C.C.S. will now start to self-control at its initial value. Engine operation can vary slightly when the terminal is disconnected. However, this is not an indication of a problem. Do not replace parts because of a slight variation. (Model with catalyzer)
  4. 4
    Do not apply undue force to mounting bracket.
  5. 5
    Before connecting or disconnecting E.C.U. connector, make sure red and green L.E.D.s are off after turning ignition key off.
  6. 6
    Always install specified E.C.U. on car; otherwise, erroneous engine operation may result.
  7. 7
    Disconnect connector by pulling it (not the harness) straight out.

E.C.C.S. HARNESS HANDLING

  1. 1
    Securely connect E.C.C.S. harness connectors. A poor connection can cause extremely high voltage to develop in the coil and condenser, resulting in damage to ICs.
  2. 2
    Keep E.C.C.S. harness at least 10 cm (3.9 in) away from adjacent harnesses, to prevent an E.C.C.S. system malfunction due to receiving external noise, degraded operation of ICs, etc.
  3. 3
    Keep E.C.C.S. parts and harnesses dry.
  4. 4
    Before removing parts, turn off ignition switch and then disconnect battery ground cable.
  5. 5
    Before connecting connector, make sure all pins are straight.

E.C.C.S. PARTS HANDLING

  1. 1
    Handle air flow meter carefully to avoid damage.
  2. 2
    Do not disassemble air flow meter.
  3. 3
    Do not clean air flow meter with detergent.
  4. 4
    Do not shock or jar the crank angle sensor.

INJECTOR

  1. 1
    Do not disconnect injector harness connectors with engine running.
  2. 2
    Do not apply battery power directly to injectors; otherwise injectors will be damaged.

FUEL PUMP

  1. 1
    Do not operate fuel pump when there is no fuel in lines.
  2. 2
    Do not reuse fuel hose clamps.
  3. 3
    Tighten fuel hose clamps to the specified torque.

BATTERY

  1. 1
    Always use a 12 volt battery as power source.
  2. 2
    Do not disconnect battery cables while the engine is running.
  3. 3
    Do not reverse polarity of battery when connecting it. Otherwise, E.C.U. and/or injectors may be burned.

WIRELESS EQUIPMENT

  1. 1
    When installing a C.B. ham radio or a mobile phone, be sure to observe the following, as installation location may affect the electronic control systems.
  2. 2
    1) Keep antenna as far as possible away from electronic control units.
  3. 3
    2) Keep antenna feeder line more than 20 cm (7.9 in) away from harness of electronic controls. Do not let them run parallel for a long distance.
  4. 4
    3) Adjust antenna and feeder line so that standing-wave ratio can be kept smaller.
  5. 5
    4) Be sure to ground radio to vehicle body.

WHEN STARTING

  1. 1
    Do not depress accelerator pedal when starting.
  2. 2
    Immediately after starting, do not rev up engine unnecessarily.
  3. 3
    Do not rev up engine just prior to shutdown.

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