How To Remove the O2 Sensors - Check Pre-Cats - Toyota MR2 Spyder 1zz-FE

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The pre-catalytic converters, or pre-cats, are prone to failure. This can accelerate damage to the engine. The condition of the pre-cats can be checked by removing the O2 sensors and peering through the O2 sensor mounting bung.

Видео How To Remove the O2 Sensors - Check Pre-Cats - Toyota MR2 Spyder 1zz-FE канала Frank Saab