02 sensors replaced but still have check engine

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I replaced my 4 02 sensors in my 97 ford explorer and my check engine light is still on saying heat malfunction in all 4 sensors what could it be?

Visitor

in New Castle DE

Mar 28, 2020

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What are the best Ford repair shops?

RepairPal Certified shops can diagnose and repair your 1997 Ford Explorer. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

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What is your question?

Popular Answer

02 sensors replaced but still have check engine

What is your question?

I replaced my 4 02 sensors in my 97 ford explorer and my check engine light is still on saying heat malfunction in all 4 sensors what could it be?

Visitor

in New Castle DE

Mar 28, 2020

2 Replies

Popular Answer

pushrodon Mar 28, 2020

Heated 02 sensors have a designated circuit for the heating element - SOME vehicles have a fuse protecting the circuit - SOME vehicles do not - There could possibly be a wiring issue - problem with - the wiring connecter or the supply circuit .. **HANDS-ON TESTING IS REQUIRED.

pushrodon Mar 28, 2020

NEVER replace any parts based solely on a trouble code! https://repairpal.com/repair-shops/auto-repair-in-new-castle-delaware Good luck!

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DaveJMon Mar 29, 2020

Which engine?

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Popular Answer

What are the best Ford repair shops?

RepairPal Certified shops can diagnose and repair your 1997 Ford Explorer. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.