IG-1 IGNITION (2JZ-GTE) - IGNITION SYSTEM IGNITION SYSTEM ON-VEHICLE INSPECTION IG04X-02 NOTICE: "Cold" and "Hot" in these sentences express the temperature of the coils themselves. "Cold" is from -10°C (14°F) to 50°C (122°F) and "Hot" is from 50°C (122°F) to 100°C (212°F). 1. INSPECT IGNITER AND SPARK TEST Check that the spark occurs. (1) Remove the ignition coil. (See page IG-6 ) (2) Remove the spark plug. (3) Install the spark plug to the ignition coil, and connect the ignition coil connecter. (4) Ground the spark plug. (5) Check if spark occurs while engine is being cranked. NOTICE: To prevent excess fuel being injected from the injectors during this test, do not crank the engine for more than 5 - 10 seconds at a time. If a spark does not occur, do the test as follows: SPARK TEST ↓ NO CHECK CONNECTION OF IGNITION COIL AND IGNITER BAD→ Connect securely. ↓ OK CHECK POWER SUPPLY TO IGNITION COIL AND IGNITER 1. Turn ignition switch to ON. 2. Check that there is battery positive voltage at ignition coil positive (+) terminal. BAD→ Check wiring between ignition switch to ignition coil and igniter. ↓ OK CHECK RESISTANCE OF IGNITION COIL (See step 3) Resistance: Cold Hot Primary 0.54 - 0.84 Ω 0.68 - 0.98 Ω BAD→ Replace ignition coil. ↓ OK CHECK RESISTANCE OF CAMSHAFT POSITION SENSOR (See step 4) Resistance: Cold Hot 835 - 1,400 Ω 1,060 - 1,645 Ω BAD→ Replace camshaft position sensor. ↓ OK CHECK RESISTANCE OF CRANKSHAFT POSITION SENSOR (See step 5) Resistance: Cold Hot 1,630 - 2,740 Ω 2,065 - 3,225 Ω BAD→ Replace crankshaft position sensor. ↓ OK CHECK IGT SIGNAL FROM ECM (See page DI-252 ) BAD→ Check wiring between ECM and igniter, and then try another ECM. ↓ TRY ANOTHER IGNITER 1997 SUPRA (RM502U) Author : Date : 1495