Code po400

1995 NISSAN SENTRA
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DRUMMER21217
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what to do next after replacing ERG valve? The check engine is still lit. do the computer need to be reset? Or do I need to do something else? I just bought the car three weeks ago from an auction so not much history.
Mar 14, 2007 at 11:15 AM
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ASEMASTER6371
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Good evening.

On the old OBD1 systems, when the correct repair is performed for a fault code, the light will go out on its own.

Since the light did not go out, the repair was incorrect.

Can I have the code number so I can help you with the repair?

Roy
Mar 25, 2020 at 4:56 PM