2000 Chevrolet Blazer LS 4.3L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on
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...
FIX posted 11/6/2008
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Message Closed w/FIX
Vehicle Data2000 Chevrolet Blazer LS
Trouble Codes
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Message Closed w/FIX
Vehicle Data
2000 Chevrolet Blazer LS
VIN | 1GNDT13W0Y |
Engine | 4.3 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / CFI |
Emissions | OBD-II Compliant |
Symptoms | Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp On |
Occurs | Always |
Misc. | P0172, P0175, P1133, P1153 |
Trouble Codes
P0172 | Fuel System Too Rich (Bank 1) |
P0175 | Fuel System Too Lean (Bank 2) |
P1133 | Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching |
P1153 | Heated Oxygen Sensor (Bank 2 Sensor 1) Insufficient Switching |