Checking the ignition system distributor [Toyota Carina T190]

Disconnect the distributor connector, remove the distributor cap and the spark distributor rotor.

1. Using a feeler gauge, check the air gap between the teeth of the angular pulse sensor rotor and the protrusion of the core of the inductive coil of this sensor.

Note: Multiple angular pulse sensors may be used in the ignition system (crankshaft angular position sensor NE and camshaft angular position sensors G, G1, G2), then similar measurements should be performed for each sensor.

• Nominal air gap - 0.2-0.5 mm

The publication is taken from the website: www.ToyotaMan.ru



If the clearance is outside the specified limits, replace the distributor housing, distributor assembly, or ignition unit housing (contactless ignition system unit).

2. Check the electrical resistance of the inductive coils of the angular pulse sensors of the crankshaft and camshaft using an ohmmeter. The ohmmeter connection diagrams are shown in the figures, and the numbers of the terminals to which the ohmmeter should be connected and the nominal resistance values of the inductive coils of the angular pulse sensors are given in the table "The value of the electrical resistance of the inductive coils of the angular pulse sensors".

5A-FE

In a "cold" state:

• NE(+) and NE(-) - 370-550 Ohm

In "hot" condition:

• NE(+) and NE(-) - 475-650 Ohm

4A-FE (until 08.1994)

In a "cold" state:

• G1(+) - G1(-) — 185-275 Ohm
• G2(+) - G2(-) — 125-235 Ohm
• NE(+) and NE(-) - 190-290 Ohm

In "hot" condition:

• G1(+) - G1(-) — 160-235 Ohm
• G2(+) - G2(-) — 160-235 Ohm
• NE(+) and NE(-) - 190-290 Ohm

4A-FE (c 08.1994)

In a "cold" state:

• G(+) - G(-) — 185-275 Ohm
• NE(+) and NE(-) - 370-550 Ohm

In "hot" condition:

• G(+) - G(-) — 240-325 Ohm
• NE(+) and NE(-) - 475-650 Ohm

7A-FE

In a "cold" state:

• G(+) and G(-) — 185-275 Ohm

In "hot" condition:

• G(+) and G(-) — 240-325 Ohm

4S-FE

In a "cold" state:

• NE(+) and NE(-) - 135-220 Ohm

In "hot" condition:

• NE(+) and NE(-) - 175-255 Ohm

3S-FE

In a "cold" state:

• G(+) - G(-) — 185-275 Ohm
• NE(+) and NE(-) - 370-550 Ohm

In "hot" condition:

• G(+) - G(-) — 240-325 Ohm
• NE(+) and NE(-) - 475-650 Ohm

If the resistance is not within the specified limits, replace the entire distributor assembly (combined ignition unit housing).

3. Reinstall the distributor rotor, distributor cap and connect the distributor connector.