toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Idle Speed > < Air/Fuel Mixture|System Diagnosis
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6. TROUBLESHOOTING

If the CO/HC concentration does not comply with regulations, troubleshoot according in the order given.
1) Check heated oxygen sensor operation.
2) See the table for possible causes, then inspect and correct the applicable causes if necessary.

Idle Speed > < Air/Fuel Mixture|System Diagnosis