
2001 Toyota Tacoma DLX 2.7L MIL Lamp on
vehicle came to us with the upstream o2 sensor, and the cat back exhaust replaced. customer stated that light came on after muffler was replaced. a/f sensor was replaced and he said mileage improved. we assumed it was stuck and had overheated the pre cat, sinc...
FIX posted 11/17/2008
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Message Closed w/FIX
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VIN | 5TEWM72N21 |
Engine | 2.7 L / 4 cyl / GAS |
Trans | 5-speed Standard |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Always |
Trouble Codes
P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Message Closed w/FIX
Vehicle Data
2001 Toyota Tacoma DLX
VIN | 5TEWM72N21 |
Engine | 2.7 L / 4 cyl / GAS |
Trans | 5-speed Standard |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Always |
Trouble Codes
P0420 | Catalyst Efficiency Below Threshold (Bank 1) |