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P0141 Diagnostic Trouble Code Discussion for August 2011

Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Performance


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Trouble Ticket Help Requests for DTC P0141
Help Request Posted
2004 Audi Allroad Quattro 2.7L MIL Lamp on VIN: WA1YD64B84
P0141: Ho2s heater b1s2. This thing keeps resetting heater performance/warmup codes. Both sensors are new. I have seen a slow warmup on a pre-cat sensor, though. My question is whether or not the pre-cat sensor can affect the post-cat code, and/or if there have been any PCM issues wit...
August 04, 2011
2001 Ford Focus ZX3 2.0L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, Poor Fuel Economy VIN: 3FAFP31361
P0141: B1S2 o2 HEATER. I have this rich running Focus, it has an electronic returnless system. It chugs, tons of black smoke, misfires, runs like crap. Fuel pressure is about 80-90 psi engine running. KOEO pressure is 44psi. I was getting bad rail pressure readings so I replaced rai...
August 27, 2011
1996 Acura TL 2.5L Poor Idle Quality, Surge, Cuts out, Misfire, MIL Lamp on VIN: JH4UA2659T
P0141: Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Malfunction. No power on road sounds like popping back maf. O2 shows rich .9. Plugs fouled. O2 not sooted up. Tried new one, no help. Changed plugs, tried new maf, no help. Powers and grds at ecm ok. Exhaust unresricted. Secondary waveform ok. Injector waveform ok, 30 ms o...
August 31, 2011
2004 Audi Allroad Quattro 2.7L MIL Lamp on VIN: WA1YD64B84
P0141: Ho2s heater b1s2. This thing keeps resetting heater performance/warmup codes. Both sensors are new. I have seen a slow warmup on a pre-cat sensor, though. My question is whether or not the pre-cat sensor can affect the post-cat code, and/or if there have been any PCM issues wit...
August 04, 2011
2001 Ford Focus ZX3 2.0L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, Poor Fuel Economy VIN: 3FAFP31361
P0141: B1S2 o2 HEATER. I have this rich running Focus, it has an electronic returnless system. It chugs, tons of black smoke, misfires, runs like crap. Fuel pressure is about 80-90 psi engine running. KOEO pressure is 44psi. I was getting bad rail pressure readings so I replaced rai...
August 27, 2011
1996 Acura TL 2.5L Poor Idle Quality, Surge, Cuts out, Misfire, MIL Lamp on VIN: JH4UA2659T
P0141: Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Malfunction. No power on road sounds like popping back maf. O2 shows rich .9. Plugs fouled. O2 not sooted up. Tried new one, no help. Changed plugs, tried new maf, no help. Powers and grds at ecm ok. Exhaust unresricted. Secondary waveform ok. Injector waveform ok, 30 ms o...
August 31, 2011