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P0151 Diagnostic Trouble Code Discussion for March 2008

Air Fuel Sensor (Bank 2 Sensor 1) Circuit Low Input (Lean Shift) *

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Trouble Ticket Help Requests for DTC P0151

	Help Request	Posted
	1998 Chevrolet C1500 Cheyenne 5.7L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, MIL Lamp on VIN: 2GCEC19R8W P0151: Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Low Voltage. Ok another head scratcher at least for me. Customer came in complaining of a stumble but no codes and the truck sat for about a week. When i first looked at it it had no codes and seem to run fine, no stumble or missfire. (Keep in mind the motor was still cold...	March 25, 2008
	1999 Chevrolet Express 2500 5.7L Excessive Emissions, Hesitation, Cuts out, Poor Fuel Economy VIN: 1GCGG25R8X P0151: Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Low Voltage. at idle this van runs great. engine will rev just fine on light excell, but med. to heavy excell it will not rev over 1200-1500 rpm. backfires through intake. falls flat on its face. fuel pressure in spec.koeo and 55psi when acting up. cam retard at 0- +1 degr...	March 25, 2008
	2000 Chevrolet Blazer LS 4.3L Hesitation, Cuts out, Stall VIN: 1GNDT13W9Y P0151: Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Low Voltage. Blazer only stumbles at wot. You can easy in to it and at 1/2 throttle spins tires. If u wot it will sputter stall backfire what ever u want to call it. I say the pump is bad but it is 300$ so I want to be sure. Fuel pressure koeo 60-59 quickly falls an sta...	March 25, 2008
	2000 Chevrolet Blazer LS 4.3L Hesitation, Cuts out, Stall VIN: 1GNDT13W9Y P0151: Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Low Voltage. Blazer only stumbles at wot. You can easy in to it and at 1/2 throttle spins tires. If u wot it will sputter stall backfire what ever u want to call it. I say the pump is bad but it is 300$ so I want to be sure. Fuel pressure koeo 60-59 quickly falls an sta...	March 26, 2008