IG–6 IGNITION SYSTEM – (2JZ–GE) Simple Method: (a) Quickly race the engine 5 times to 4,000 rpm. (b) Remove the spark plug. (c) Visually check the spark plug. If the electrode is dry...OK If the electrode is wet...Proceed to step 4 (d) Reinstall the spark plug. 3. REMOVE SPARK PLUGS Using a 16 mm plug wrench, remove the 6 spark plugs. 4. VISUALLY INSPECT SPARK PLUGS Check the spark plug for thread damage and insulator damage. If abnormal, replace the spark plug. Recommended spark plug: ND PK16R11 NGK BKR5EP11 5. INSPECT ELECTRODE GAP Maximum electrode gap for used spark plug: 1.3 mm (0.051 in.) If the gap is greater than maximum, replace the spark plug. Correct electrode gap for new spark plug: 1.1 mm (0.043 in.) NOTICE: If adjusting the gap of a new spark plug, bend only the base of the ground electrode. Do not touch the tip. Never attempt to adjust the gap on the used plug. 1.1 mm 6. CLEAN SPARK PLUGS If the electrode has traces of wet carbon, allow it to dry and then clean with a spark plug cleaner. Air pressure: Below 588 kPa (6 kgf·cm2, 85 psi) Duration: 20 seconds or less HINT: If there are traces of oil, remove it with gasoline before using the spark plug cleaner. SPARK PLUG CLEANER 7. REINSTALL SPARK PLUGS Torque: 18 N·m (180 kgf·cm, 13 ft·lbf) 8. RECONNECT HIGH–TENSION CORDS TO SPARK PLUGS