× 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
1999 Toyota 4Runner SR5 3.4L Poor Idle when cold
Posted to Asian Driveability on 3/21/2001

Hello group,

We had this truck come in with code p0172- O2 sensor 1 Bank 1. We replaced the sensor and released it to the customer but the MIL came on within a week. Since then we cleared codes and it will repeatedly return. Truck idles poor for the first 3-4...

  Related Documents & Media  1999 Toyota 4Runner SR5

 
Message Closed w/Summary

car Vehicle Data

1999 Toyota 4Runner SR5

VIN JT3HN86R8X
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle When Cold
OccursCold

Trouble Codes

P0172Fuel System Too Rich (Bank 1)
Message Closed w/Summary

car Vehicle Data

1999 Toyota 4Runner SR5

VIN JT3HN86R8X
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle When Cold
OccursCold

Trouble Codes

P0172Fuel System Too Rich (Bank 1)