Trouble code po125

1998 TOYOTA COROLLA
144,000 MILES • 1.8L • 4 CYL • FWD • AUTOMATIC
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ITOBOY1
  • MEMBER
  • 5 POSTS
I have a trouble code of PO125 and need to know what I need to change.
Jul 11, 2017 at 9:06 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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HMAC300
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 48,601 POSTS
You need to check oxygen sensor in front of catalytic converter. The coolant temperature is too low to go into closed loop. See picture on how to test it.
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Jul 11, 2017 at 9:29 AM
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