× 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

P0133 Diagnostic Trouble Code Discussion for August 2009

Heated Oxygen Sensor (Bank 1 Sensor 1) Slow Response

Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0133
Help Request Posted
2005 Jeep Grand Cherokee Laredo 4.7L Poor Idle Quality, MIL Lamp on VIN: 1JHR48N35C
P0133: Heated Oxygen Sensor (Bank 1 Sensor 1) Slow Response. Jeep came in with customer requesting O2 sensor replacement,scanned and replaced bank 1 sensor 1 O2,OE Part, Jeep Runs rough,I have Checked Fuel pressure(60 psi) Vacuum 17 inch,checked exhaust back pressure Less than 1 lb, Smoked intake no leaks, Fuel trim # b...
August 05, 2009
1996 Ford Aerostar 4.0L Misfire VIN: 1FTW16TSTS
P0133: b1s1 o2 no activity. This car missfires under load, i tried adding propane but not much change. I have good spark to the plug, I will try a injector flow test, my first thought was a valve issue. No vacuum leaks found and fuel trim looks good.
August 11, 2009