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2009 Chevrolet Suburban 1500 LT 5.3L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire
Runs very poorly when started cold. After about 2 minutes at the most, it runs fairly normal. No codes, other than the P1400. The scan tool readings look normal, doesn't set codes when [...]!!! it has a aftermarket supercharger!This has been on it for 10 y...
FIX posted 3/30/2023
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16 Replies Received
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Related Documents & Media | VIN | 1GNFC260X9 |
| Engine | 5.3 L / 8 cyl / FLEX |
| Trans | 6-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Hesitation, Surge, Cuts Out, Stall, Misfire |
| Occurs | Cold |
Trouble Codes
| P1400 | Manifold Differential Pressure Sensor Circuit Malfunction |
Message Closed w/FIX
Vehicle Data
2009 Chevrolet Suburban 1500 LT
| VIN | 1GNFC260X9 |
| Engine | 5.3 L / 8 cyl / FLEX |
| Trans | 6-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Hesitation, Surge, Cuts Out, Stall, Misfire |
| Occurs | Cold |
Trouble Codes
| P1400 | Manifold Differential Pressure Sensor Circuit Malfunction |
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