1993 Toyota Corolla Oxygen Sensor(s)

1993 TOYOTA COROLLA
101,000 MILES • 4 CYL • FWD • MANUAL
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GHATMAIL
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I'm really thanks and appreciated of all helpful explanations. Some other questions are here for me:
- Does Toyota Corolla xli 1.6l(Base Engine: 4A-FE, 16 valve) 1993 have Oxygen Sensor(s)?
- And if it has, where is the installation place in the car and how can we test the sensor(s) and make sure for being healthy or dead?
Really thank you so much.
Nov 27, 2009 at 1:03 PM
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MMPRINCE4000
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California cars have 2 sensors, all others have one. Located before convertor in exhaust stream.

There is no real test, other than hooking up a scan tool to watch sensor output.

Also if you have an exhaust leak, it will affect sensor output. Sensor (one wire) must reach 600 degrees F, before it can operate properly.
Nov 28, 2009 at 8:24 AM