Question about 2002 Hyundai Accent
Fault dignoses is "Slow response from No 1 Lambda Probe - Engine management light was on but has now gone out also I thing the exhause is busted
If you have an exhaust leak before or after the catalytic convertor, then the response of the of the sensor could be slowed.
An excerpt from Wikipedia:
Location of the probe in a system
The probe is typically screwed into a tapped hole in the exhaust, located after the branch manifold of the exhaust system combines, and before the catalytic converter. New vehicles are required to have a sensor before and after the exhaust catalyst to meet U.S. regulations requiring that all emissions components be monitored for failure. Pre and post-catalyst signals are monitored to determine catalyst efficiency. Additionally, some catalyst systems require brief cycles of lean (oxygen-containing) gas to load the catalyst and promote additional oxidation reduction of undesirable exhaust components.
It's a good article about the two-sensor system and oxygen sensors in general and is available here:
Posted on Jul 20, 2008
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Posted on Jan 02, 2017
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