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Posts Tagged: P0174

Chevrolet Silverado P0106, P0107, P0174

Chevrolet Silverado P0106, P0107, P0174 Diagnose and fix Chevrolet Silverado P0106, P0107, P0174 Shops are reporting a high incidence of Chevrolet Silverado P0106, P0107, P0174 multiple codes that contradict one another. For example, codes P0106 Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem and P0107 Manifold Absolute Pressure/Barometric Pressure Circuit Low Input are contradictory. When you see that kind of behavior, you automatically suspect wiring harness issues. What’s happening when you see multiple contradictory codes All of these sensors share a 5-volt reference signal: Manifold Absolute Pressure (MAP) sensor Fuel Tank … Read More

P0171, P0174 GM vehicles

P0171, P0174 GM vehicles Diagnose and fix P0171, P0174 GM vehicles Service bulletin #PIP5549 for P0171, P0174 GM vehicles GM has issued service bulletin #PIP5549 to address trouble codes P0171, P0174 on GM vehicles listed below. Vehicles affected Buick Enclave 2012-2018  3.6 LLT, 3.6LFY engines Cadillac XTS 2015-2018 3.6 LFXl Chevrolet Colorado 2015-2016 3.6 LFX Chevrolet Equinox 2015-2017 3..6 LFX Chevrolet Impala 2015-2018 3.6 LFX Chevrolet Traverse 2012-2018   3.6 LFX, 3.6 LFY GMC Acadia 2012-2017   3.6 LLT GMC Canyon 2015-2016   3.6 LFX GMC Terrain 2015-2017   3.6 LFX Cause of P0171, … Read More

oil in air intake duct

Oil in air inlet duct GM has issued a service bulletin to address a problem with oil in air intake duct, along with a check engine light, poor acceleration, and throttle body freezing. The bulletin applies to the following vehicles equipped with the 3.6L engine: 2008-11 Buick Enclave 2007-11 Chevrolet Malibu 2009-11 Chevrolet Traverse 2007-11 GMC Acadia 2007-10 Pontiac G6 2007-09 Saturn AURA 2007-10 Saturn OUTLOOK GM states that the problem occurs after a cold start up or when driving in cold temperatures. If you scan the PCM, you may … Read More


P0174 System Too Lean (Bank 2) If you have a P0174 System Too Lean (Bank 2)  trouble code, read this to understand what it means Lean codes are incredibly difficult to diagnose. And it’s one trouble code where you don’t want to start throwing parts at the problem. The guys at the parts store will tell you to replace the Oxygen sensor. Nice guess, but probably wrong. They’re assuming that the fuel mixture is correct but the sensor is reporting it wrong. Oxygen sensors DO wear out. But what if the … Read More

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