× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
1995 Toyota Tacoma SR5 3.4L MIL Lamp on
Posted to Asian Driveability on 2/17/2005 18 Replies

this thing sets a code p0420 about every 500 to 700 miles. freeze frame data shows the b1 s2 02 sensor switching mirroring b1 s1. in my shop with the modis on it every thing is working fine. the b1 s2 switching much slower as designed.

thanks john

18 Replies Received (View Replies)

  Related Documents & Media  1995 Toyota Tacoma SR5

 
Message Closed w/Summary

car Vehicle Data

1995 Toyota Tacoma SR5

VIN 4TAVN73K6S
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / EFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAfter 500 Miles

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)
Message Closed w/Summary

car Vehicle Data

1995 Toyota Tacoma SR5

VIN 4TAVN73K6S
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / EFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAfter 500 Miles

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)