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Old 12-09-2014, 03:17 PM   #5
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Join Date: Jan 2013
Location: Lakewood WA
Posts: 358

2001 SL2
2004 VUE 3.5L
Question Re: We have two trouble code service engine light on

Originally Posted by fdryer View Post
You can ignore the P0037 O2 sensor temporarily until the P0410 is repaired. Unless the engine is acting erratically, the rear O2 sensor is used to monitor the catalytic converter's efficiency and reports it for emissions purposes whether or not your state requires emissions inspection.

Search for threads about the secondary air injection system.

But do you think faulty downstream O2 sensor could cause P0410 code (secondary air system code)


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