TGE/Troubleshooting 2JZ-GE — Check each item found to be a possible cause of problem., page 53

EG–433

ENGINE – 2JZ-GE ENGINE TROUBLESHOOTING

7    Check each item found to be a possible cause of problem.

Check each circuit found to be a possible cause of trouble according to the results of the check
in 1 .  The numbers in the table below show the order in which the checks should be done.

(Main heated*)
oxygen sensor signal
from either side
continues at 5.0 V

(Main heated*)
oxygen sensor signal
from both sides
continues at 5.0 V

(Main heated*)
oxygen sensor
signals from both
sides are normal

Possible Cause

See page

1
                                        7        Injector circuit        EG–4
                                        3        Misfire                IG–4
2                                       4        Valve timing           EG–33
                                        1        Air leakage            EG–19
             1                          2        Fuel system            EG–457
             4                          8        Characteristics deviation
                                                 in volume air flow meter    EG–438
             2                          5        Characteristics deviation
                                                 engine coolant temp. sensor  EG–424
             3                          6        Characteristics deviation
                                                 in intake air temp. sensor   EG–426

OK                          NG    Repair or replace.

8    Check compression (See page EG–9).

OK                          NG    Repair or replace.

9    Does malfunction disappear when a good (main heated*) oxygen sensor is
     installed?

NG                          YES    Replace (main heated*) oxygen sensor.

Check and replace engine control module.

*: Only for California specification vehicles