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Posts Tagged: P0107

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

P0107

Fix code P0107 Manifold Absolute Pressure/Barometric Pressure Circuit Low The Manifold Absolute Pressure sensor/Barometric Pressure Sensor (MAP/BARO)is a “speed density” method of determining the air fuel ratio. The sensor measures intake manifold vacuum, which varies depending on how wide open the throttle is. However, while the pistons are pulling a vacuum on the down-stroke, outside barometric pressure is also pushing air into the cylinder. So the sensor actually takes two readings—one before the engine starts (barometer pressure) and one after the engine starts. Once the engine is running, the computer … Read More


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