
2000 Toyota 4Runner Limited 3.4L Excessive Emissions, MIL Lamp on
Replaced cat with Bosal # 099-211. Has a "pre cat" also,cant believe the rear would not be enough alone to reduce emmisions. Having a hard time locating the correct procedure to make sure the AF ratio sensor is operating properly. LT andST fuel trim vary but n...
Summary posted 3/24/2011
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Message Closed w/Summary
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VIN | JT3HN87R1Y |
Engine | 3.4 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / fi |
Emissions | OBD-II Compliant |
Symptoms | Excessive Emissions, MIL Lamp On |
Occurs | Always |
Trouble Codes
P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Message Closed w/Summary
Vehicle Data
2000 Toyota 4Runner Limited
VIN | JT3HN87R1Y |
Engine | 3.4 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / fi |
Emissions | OBD-II Compliant |
Symptoms | Excessive Emissions, MIL Lamp On |
Occurs | Always |
Trouble Codes
P0420 | Catalyst Efficiency Below Threshold (Bank 1) |