× 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
2000 Chevrolet Blazer LS 4.3L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on
Posted to GM Driveability on 11/4/2008 10 Replies

Hey fellow techs, kind of getting erked with this one. Vehicle came in with mil on. Pulled out codes p0172 and p0175 running rich. Also 02 sensor codes p1133 and p1153. Checked fuel pressure, 74 psi when running seemed high to me. Replaced regulator because of...

10 Replies Received (View Replies)

  Related Documents & Media  2000 Chevrolet Blazer LS

 
Message Closed w/FIX

car Vehicle Data

2000 Chevrolet Blazer LS

VIN 1GNDT13W0Y
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / CFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp On
OccursAlways
Misc.P0172, P0175, P1133, P1153

Trouble Codes

P0172Fuel System Too Rich (Bank 1)
P0175Fuel System Too Lean (Bank 2)
P1133Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching
P1153Heated Oxygen Sensor (Bank 2 Sensor 1) Insufficient Switching
Message Closed w/FIX

car Vehicle Data

2000 Chevrolet Blazer LS

VIN 1GNDT13W0Y
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / CFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp On
OccursAlways
Misc.P0172, P0175, P1133, P1153

Trouble Codes

P0172Fuel System Too Rich (Bank 1)
P0175Fuel System Too Lean (Bank 2)
P1133Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching
P1153Heated Oxygen Sensor (Bank 2 Sensor 1) Insufficient Switching