Page text (OCR transcript)
EG–432
ENGINE – 2JZ–GE ENGINE TROUBLESHOOTING
3 Check for open and short in harness and connector between engine control module and (main heated*) oxygen sensor, engine control module and data link connector 1 (see page IN–30).
OK NG Repair or replace harness or connector.
4 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 or 2 . 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 0 V | (Main heated*) oxygen sensor signal from both sides continues at 0 V | Possible Cause | See page
1 | | Faulty sensor installation | –
3 | | Injector circuit | EG–47
2 | 3 | Misfire | IG–4
4 | | Valve timing | EG–33
| 1 | Air leakage | EG–190
| 2 | Fuel system | EG–457
| 6 | Characteristics deviation in volume air flow meter | EG–438
| 4 | Characteristics deviation in engine coolant temp. sensor | EG–424
| 5 | Characteristics deviation in intake air temp. sensor | EG–426
OK NG Repair or replace.
5 Check compression (See page EG–9).
OK NG Repair or replace.
6 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
