Checking the ignition coil
Note: The terms "cold" and "hot" state refer to the temperature of the windings:
- "cold" - from -10°C to -50°C
- "hot" - from +50°C to +100°C
These definitions are further retained also in relation to inductive coils of angular momentum sensors.
1. Check the resistance of the primary winding using an ohmmeter by connecting it to the ignition coil as shown in the figures.
- in a "cold" state - 0.36-0.55 Ohm
- in "hot" state - 0.45-0.65 Ohm
Models with TRC
Models without TRC
2. Check the resistance of the secondary winding using an ohmmeter by connecting it to the ignition coil as shown in the figures.
Nominal resistance:
- in "cold" state 9.0-15.4 kOhm
- in "hot" state - 11.4-18.1 kOhm
Models with TRC
Models without TRC
If the resistance of any of the ignition coil windings does not correspond to the nominal values, replace the ignition coil.
Checking the distributor
Disconnect the distributor connector, remove the distributor cap and 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.
Models with TRC
Models without TRC
- Nominal air gap - 0.2 - 0.4 mm
If the clearance is outside the specified limits, replace the distributor housing assembly.
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 terminal numbers to which the ohmmeter should be connected and the nominal values of the resistance 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.
In a "cold" state:
with TRC:
- G (+) and G (-) - 185 -275 Ohm
- NE (+) and NE (-) - 370-550 Ohm
without TRC:
- NE (+) and NE (-) - 135 - 210 Ohm
In "hot" condition:
with TRC:
- G (+) and G (-) - 240 -325 Ohm
- NE (+) and NE (-) - 475 - 650 Ohm
View the original source on the website: ToyotaMan.ru
Models without TRC
Models with TRC
Distributor
1 - capacitor,
2 - wiring connector,
3 - rotor,
4 - gasket,
5 - cover and high-voltage wires,
6 - ignition coil boot,
7 - ignition coil,
8 - distributor housing,
9 - O-ring seal.