Ignition Coil Inspection; Measure Primary Coil Resistance; Measure Secondary Coil Resistance; Distributor Inspection - Toyota 22R-E Service Manual

IGNITION SYSTEM – (22R– E)

IGNITION COIL INSPECTION

NOTICE: "Cold" and 'Hot" in the following sentences ex–
press the temperature of the coils themselves. "Cold' is
from –10 SC (14 SF) to 50 SC (104 SF) and "Hot' is from
50 SC (104 OF) to 100 SC (212 OF).
1. DISCONNECT HIGH–TENSION CORD
2. CLEAN COIL AND CHECK FOLLOWING:
(a) Check for cracks or damage.
(b) Check the terminals for carbon tracks.
(c) Check the high–tension cord hole for carbon deposits
and corrosion.

3. MEASURE PRIMARY COIL RESISTANCE

Using an ohmmeter, measure the resistance between
the positive (+) and negative (–) terminals.
Primary coil resistance (Cold):0.36–0.55
Primary coil resistance (Hot) :0.45–0.65

4. MEASURE SECONDARY COIL RESISTANCE

Using an ohmmeter, measure the resistance between
the positive (+) terminal and high–tension terminal.
Secondary coil resistance (Cold):9.0 –15.4kW
Secondary coil resistance (Hot) :11.4–18.1 kW
5. CONNECT HIGH–TENSION CORD

DISTRIBUTOR INSPECTION

1. INSPECT AIR GAP
Using a thickness gauge, measure the gap between
the signal rotor and the signal generator (pickup coil)
projection.
Air gap:
0.2–0.4mm(0.008–0.015in.)
IG–7
W
W