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Toyota
Land Cruiser
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Replace Oxygen Sensor When Servicing EGR System on Toyota Land Cruiser

Problem Description and Possible Solution

Over the time the exhaust gas recirculation (EGR) system may become plugged with debris, the oxygen sensor may also be getting slow or 'lazy' around this time. When servicing or cleaning  the EGR system, it is a good idea to replace the oxygen sensor because it works in tandem with the EGR system.

Problem Data
RepairPal Verified
Average mileage: 156,025 (102,153–250,000)
9 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996, 1997, 2005
16 people reported this problem
Comments
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had to replace both oxygen sensors after check engine light was tripped. bought replacements on Amazon for 1/2 the price of lcoal store and replaced them myself in about an hour.
Diagnostic report: 02s2 malfunction. EGR system malfunction. Estimated cost $528.25 We are looking for a better price.