(b) Warm up engine to normal operating temp (above 75°C). CHECK:
Read voltage output of the oxygen sensor (bank 1 sensor 1) when engine is suddenly raced. HINT:
Perform quick racing to 4,000 rpm 3 times using accelerator pedal. OK:
Both oxygen sensor (bank 1 sensor 1) output a RICH signal (0.45 V or more) at least once.
4 Check for open and short in harness and connector between ECM and oxygen sensor (bank 1 sensor 1) (See page IN-41).
5 Check whether misfire is occurred or not by monitoring DTC and data list.
Perform troubleshooting for misfire (See page DI-67).
Check air induction system (See page SF-1).
Repair or replace induction system.
Check injector injection (See page SF-12).
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