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16 CHECK TIMING CHAIN INSTALLATION
Check timing chain installation. Refer to EM-21, “TIMING CHAIN”.
OK or NG
OK © GO TO 17.
NG © 1. Repair the timing chain installation.
2. GO TO 4.
17 DETECT MALFUNCTIONING PART
Check the following.
I Check camshaft position sensor (PHASE) and circuit. Refer to “DTC P0340, P0345 CMP SENSOR (PHASE)”, EC-337.
I Check crankshaft position sensor (POS) and circuit. Refer to “DTC P0335 CKP SENSOR (POS)”, EC-330.
OK or NG
OK © GO TO 18.
NG © 1. Repair or replace.
2. GO TO 4.
18 CHECK ECM FUNCTION
1. Substitute another known-good ECM to check ECM function. (ECM may be the cause of a problem, but this is the
rarely the case.)
2. Perform initialization of NVIS (NATS) system and registration of NVIS (NATS) ignition key IDs. Refer to “NVIS (NISSAN
VEHICLE IMMOBILIZER SYSTEM — NATS)”, EC-92.
© GO TO 4.
19 CHECK HEATED OXYGEN SENSOR 1 (BANK 1) SIGNAL
With CONSULT-II
1. Run engine at about 2,000 rpm for about 2 minutes under no-load.
2. See “HO2S1 MNTR (B1)” in “DATA MONITOR” mode.
3. Running engine at 2,000 rpm under no-load (The engine is warmed up to normal operating temperature.), check that
the monitor fluctuates between LEAN and RICH more than 5 times during 10 seconds.
PBIB0120E
1 time: RICH → LEAN → RICH
2 times: RICH → LEAN → RICH → LEAN → RICH
OK or NG
OK © GO TO 21.
NG (Monitor does not
fluctuate.)
© GO TO 23.
NG (Monitor fluctuates
less than 5 times.)
© GO TO 30.
BASIC SERVICE PROCEDURE
Idle Speed/Ignition Timing/Idle Mixture Ratio Adjustment (Cont’d)
EC-66
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