Toyota 2GR-FE Manual page 375

6
CHECK FOR SPARKS AND IGNITION
OK
7
CHECK CYLINDER COMPRESSION PRESSURE (MALFUNCTION CYLINDER)
NG
REPAIR OR REPLACE ENGINE TO DETERMINE CAUSE OF LOW COMPRESSION
8
CHANGE SPARK PLUG WITH NORMAL ONE AND CHECK FOR SPARKS OF MISFIRING
CYLINDER
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
(a) Disconnect the injector connectors, in order to prevent
the engine from starting.
(b) Install the spark plug to the ignition coil.
(c) Attach the spark plug assembly to the cylinder head
cover.
(d) Crank the engine for less than 2 seconds and check the
sparks.
OK:
Sparks jump across the electrode gap.
(e) Reconnect the injector connectors.
NG
(a) Measure the cylinder compression pressure of the
misfiring cylinder.
OK
(a) Change the installed spark plug with a spark plug that
functions normally.
(b) Perform a spark test.
CAUTION:
Always disconnect each injector connector.
NOTICE:
Do not crank the engine for more than 2 seconds.
(1) Install the spark plug to the ignition coil and connect
(2) Disconnect the injector connector.
(3) Ground the spark plug.
(4) Check if sparks occur while the engine is being
NG
Go to step 8
Go to step 9
the ignition coil connector.
cranked.
OK:
Sparks jump across the electrode gap.
REPLACE IGNITION COIL ASSEMBLY (See
page IG-9)
ES–219
ES