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- Feb 18, 2026
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Help! I have a 2004 PT cruiser, 2.4 l turbo. The check engine light is on. We've tried everything to get it off and it won't stay off. We have error codes p0031 and p0037 which are the oxygen sensors. However they have been replaced. The codes are still there. If there is a malfunction with the computer, will the codes still be showing? Where do I go from here? I have 198,000 mi. She's running really good and I'm confused. I'm trying to pass smog but unable to do so. Don't know which way to turn or what to do?
