Ignition Timing Inspection - Toyota 1 MZ–FE Manual

EG2–30
1MZ–FE ENGINE – ENGINE MECHANICAL

IGNITION TIMING INSPECTION

1. WARM UP ENGINE
Allow the engine to warm up to normal operating
temperature.
2. CONNECT TACHOMETER TO ENGINE
Connect the tester probe of a tachometer to terminal
IG(–) of the data link connector 1.
NOTICE:
Never allow the tachometer terminal to touch
ground as it could result In damage to the igniter
and/or ignition coil.
As some tachometers are not compatible with this
ignition system, we recommend that you confirm
the compatibility of your unit before use.
3. CONNECT TIMING LIGHT TO ENGINE
(a) Using a 5 mm hexagon wrench, remove the 2 cap nuts
and V– bank cover.
(b) Connect the timing light pickup clip to the the green
lead wire for the No.4 ignition coil.
HINT: Use a timing light that can detect the primary
signal.
4. CHECK IDLE SPEED
(a) Race the engine speed at 2,500 rpm for approx. 90
seconds.