A large amount of oxygen in the exhaust system causes the O2S to ...

[stock]

Question 1

A high O2S voltage could be due to ________.
◦ A rich exhaust
◦ A lean exhaust
◦ A defective spark plug wire
◦ Both A and C

Question 2

A large amount of oxygen in the exhaust system causes the O2S to produce which of these?
◦ High voltage
◦ Low voltage
◦ False readings
◦ Abnormal readings

[aidanmbrowne]

Answer 1

A rich exhaust

Answer 2

Low voltage

[stock]

Thanks for the timely response, appreciate it

[adf223]

Great answer, keep it coming