O2 sensors need to be replaced

What is your question?

Which O2 sensors would cause the ecu to throw CEL codes P1021 and P1024? Are these upstream or downstream?

What makes this problem better or worse?

Nothing. CEL

How long has your 2006 BMW 330Ci had this problem?

3 weeks. Just cleared for the 2nd time.

Visitor

in Vacaville CA

Mar 2, 2019

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What are the best BMW repair shops?

RepairPal Certified shops can diagnose and repair your 2006 BMW 330Ci. 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?

O2 sensors need to be replaced

What is your question?

Which O2 sensors would cause the ecu to throw CEL codes P1021 and P1024? Are these upstream or downstream?

What makes this problem better or worse?

Nothing. CEL

How long has your 2006 BMW 330Ci had this problem?

3 weeks. Just cleared for the 2nd time.

Visitor

in Vacaville CA

Mar 2, 2019

0 Replies

This question doesn't have any answers yet

Get the conversation going by signing in or creating an account

Submit an Answer

What are the best BMW repair shops?

RepairPal Certified shops can diagnose and repair your 2006 BMW 330Ci. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.