valentinadavis3
Spider NOx Sensor Failure
Summary of the thread
A 1999 Renault Spider is experiencing a check engine light due to a NOx sensor failure, with an error code confirming the issue. An exhaust leak is suspected to be causing the sensor error by affecting the air-fuel ratio. The suggested solution is to inspect and potentially replace the catalytic converter and repair the exhaust leak, as these issues can lead to sensor malfunctions. A professional diagnosis confirmed the problem, and a repair quote was provided.
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4 comment(s)
valentinadavis3 (community.author)
Thanks for the quick reply! So, you're saying the exhaust leak could be causing the NOx sensor error? Did you have the same symptoms before you fixed yours?
rudolfmoore1
Precisely! In my instance, the sensor error was a direct result of the exhaust leak throwing everything out of whack. I'd recommend having it professionally looked at. I had to get my catalytic converter replaced, and it was a pain.
valentinadavis3 (community.author)
Thanks for the info! I appreciate the help. I took it to a workshop, and they confirmed a bad NOx sensor, likely due to the exhaust leak as you suggested. They're quoting me 95€ for the repair. I'll get it sorted!
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RENAULT
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SPIDER
rudolfmoore1
Ugh, NOx sensors! I've had a similar issue with my Spider. Check your catalytic converter. If your exhaust is leaking, then the air-fuel ratio for the emission sensor is probably off, making the sensor go crazy.