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Home >> Chevrolet >> 1999 >> Tracker 4D Utility, RWD, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Diagnostic Tests >> DTC P1451: Barometric Pressure Sensor Performance >> Condition For Setting DTC

Condition For Setting DTC

Difference between barometric pressure and intake manifold absolute pressure is 67 kPa or greater, closed throttle position switch is on, engine speed greater than 2000 RPM, and all conditions are met for 5 seconds or more.