1996 Chevy Blazer Troble codes

1996 CHEVROLET BLAZER
280,000 MILES • 6 CYL • 4WD • AUTOMATIC
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HELL_VIPER_RAISER
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How Do I fix Codes p0131, p0339, p0341, and p0440?
Nov 23, 2008 at 9:43 AM
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SWILLIAMS
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P0131 Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 1)
P0339 Crankshaft Position Sensor A Circuit Intermittent
P0341 Camshaft Position Sensor Circuit Range
/Performance
P0440 Evaporative Emission Control System Malfunction

Well the first three share a common grounding point on the engine block. I would check that first. Make sure the ground to the chassis and to the battery is good. Also check the connection to the positive feed as well. Make sure that the O2 sensor wires are not shorted somewhere.

The 0440 could be many things. Bad gas cap, rotted out fuel vent line, bad solenoid on the vent line.
Nov 25, 2008 at 11:54 PM