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2001 Pontiac Aztek 3.4L MIL Lamp on
Vehicle came in with P0420 stored. Freeze frame indicating code set at idle. Scan data shows rear o2 mimicking front o2 at idle. Engine at 2500RPM shows rear O2 oscillating between [...](fairly steady). My concern is the LTFT I am seeing is as high as -30 at i...
FIX posted 8/19/2014
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Message Closed w/FIX
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12 Replies Received
12 Replies Received
Related Documents & Media | VIN | 3G7DA03E01 |
| Engine | 3.4 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Not Applicable |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Message Closed w/FIX
Vehicle Data
2001 Pontiac Aztek
| VIN | 3G7DA03E01 |
| Engine | 3.4 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Not Applicable |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
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