annimueller23

Quest NOx Catalyst Aging

I'm having trouble with my 2000 Nissan Quest with a gasoline engine. It has about 79,000 kilometers on it. The check engine light is on, and it's showing an error for NOx storage catalyst aging. I think there's an exhaust leak too. Could the leak be making the NOx catalyst age faster and cause these issues?

A 2000 Nissan Quest is experiencing a check engine light with an error indicating NOx storage catalyst aging, potentially linked to an exhaust leak. The leak might accelerate the catalyst's degradation, but the error suggests a failing catalytic converter. It is recommended to have the vehicle inspected by a professional to address the issue effectively.

Did this summary help you solve your problem?

4 comment(s)

I have a Nissan Quest myself, and I had similar symptoms. It sounds like your catalytic converter is going bad. Any hissing noises under the car when it's running?

Thanks. I haven't listened for hissing, but the exhaust leak could sound like that. Are you saying the leak isn't the main problem, but a result of the catalyst failing? Did you also get the NOx storage error?

Yes, that's exactly what I mean. I had the same NOx error. It's probably better to get it checked out by a professional. A leak could cause the catalyst to degrade quicker but the error code clearly points to a faulty component. Save yourself the headache and take it to a workshop.

Understood. Thanks for sharing your experience and confirming the link between the exhaust issue and the NOx catalyst fault. I'll book an appointment with a workshop for a checkup and repairs. I think it will cost about 265€. Thanks again.

rmh_community_comment_box_header

community_crosslink_scanner_headline

community_crosslink_scanner_intro

community_crosslink_scanner_title

community_crosslink_scanner_price

community_crosslink_rmh_headline

community_crosslink_rmh_intro

community_crosslink_rmh_title

community_crosslink_rmh_subtitle

community_crosslink_rmh_brand

NISSAN

community_crosslink_rmh_model

QUEST