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2007 Chevrolet Trailblazer LT 4.2L MIL Lamp on
Posted to GM Driveability on 6/19/2015 16 Replies

Hello, I am stymied by this pesky P1400. The code passes sometimes and fails sometimes. The customer admits to probably sitting idling a few minutes after starting the engine before she leaves. The engine coolant temp warms up normally. I have done all visual ...

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  Related Documents & Media  2007 Chevrolet Trailblazer LT

 
Message Closed w/FIX

car Vehicle Data

2007 Chevrolet Trailblazer LT

VIN 1GNDS13S27
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

P1400Manifold Differential Pressure Sensor Circuit Malfunction
Message Closed w/FIX

car Vehicle Data

2007 Chevrolet Trailblazer LT

VIN 1GNDS13S27
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

P1400Manifold Differential Pressure Sensor Circuit Malfunction