OK... Wasn't the O2 sensor
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Elder User
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OK... Wasn't the O2 sensor
Took my 97 into AutoZone & had the codes pulled. Was told O2 Sensor, drivers side, rear.
Bought & installed said sensor. Had computer reset. No check engine light for almost a whole hour.
Went back & had code pulled again... same thing.... 0141
Replaced it again, cleared computer....
same thing, check engine light is back on.
What else can it be?
Bought & installed said sensor. Had computer reset. No check engine light for almost a whole hour.
Went back & had code pulled again... same thing.... 0141
Replaced it again, cleared computer....
same thing, check engine light is back on. What else can it be?
Posting Guru
Joined: Jun 2006
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check the forums, you'd do better that way.
Do a search for P0141 on the forums and read all the replies.
Rule #1- talk to a guy at Autozone for 30 minutes and you'll find out they know absolutely nothing. I worked in Advance Auto for 2 years as a Manager, and you have to hold those guys hands.
When I had that code, it was all of the hoses that attach to the PCV valve. I lifted them up while the truck was running, and you could hear the air being sucked around it. Taped them up, erased the codes, no more code. Replaced all of the hoses, and the job was done!
Do a search for P0141 on the forums and read all the replies.
Rule #1- talk to a guy at Autozone for 30 minutes and you'll find out they know absolutely nothing. I worked in Advance Auto for 2 years as a Manager, and you have to hold those guys hands.
When I had that code, it was all of the hoses that attach to the PCV valve. I lifted them up while the truck was running, and you could hear the air being sucked around it. Taped them up, erased the codes, no more code. Replaced all of the hoses, and the job was done!
Hotshot
Joined: Jan 2004
Posts: 19,762
Likes: 1,079
From: St Louis
P0141
Originally Posted by Leader
Took my 97 into AutoZone & had the codes pulled. Was told O2 Sensor, drivers side, rear.
Bought & installed said sensor. Had computer reset. No check engine light for almost a whole hour.
Went back & had code pulled again... same thing.... 0141
Replaced it again, cleared computer.... same thing, check engine light is back on.
What else can it be?
Bought & installed said sensor. Had computer reset. No check engine light for almost a whole hour.
Went back & had code pulled again... same thing.... 0141
Replaced it again, cleared computer....
same thing, check engine light is back on. What else can it be?
Inspect electrical connectors for faulty/damaged pins. Inspect wiring harness for possible damage.
Swap downstream sensors and see of the problem moves. If, after swapping sensors, the code changes to a P0161, you'll know the sensor's heater was defective.
Reset PCM between tests.
Steve
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Can't seem to get the senser unplugged. If it was metal, I would spray it with PB Blaster .... anythuing I can use on this plastic plug to make it easier to undo ?Being on top of the transmition doesn't help either.
Tuned
Joined: Sep 2003
Posts: 296
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From: north carolina
The sensor plug has a pressure clip on the connector that must be depressed before the two parts of the connector will separate. I agree its a pain since you can't see what you're doing---good planning again by the engineers. If you have the new sensor already, take a look at the connector to help see where the pressure clip is, and might help you feel it on the old one.
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Elder User
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Yah I know about that release... I had it depressed. Plug is just dirty I would guess. It is just going to take more tuggin' to get it apart.
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Why doesn't someone make a penitrating oil for plastic plugs that have been exposed to weather and road grime for 10 years?????
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Originally Posted by projectSHO89
P0141 is set when the PCM detects an electrical fault related to the heater circuit of the downstream sensor on the PASSENGER side. It has nothing to do with vacuum leaks or PCV valves.
Inspect electrical connectors for faulty/damaged pins. Inspect wiring harness for possible damage.
Swap downstream sensors and see of the problem moves. If, after swapping sensors, the code changes to a P0161, you'll know the sensor's heater was defective.
Reset PCM between tests.
Steve
Inspect electrical connectors for faulty/damaged pins. Inspect wiring harness for possible damage.
Swap downstream sensors and see of the problem moves. If, after swapping sensors, the code changes to a P0161, you'll know the sensor's heater was defective.
Reset PCM between tests.
Steve
Posting Guru
Joined: Jun 2006
Posts: 1,590
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Originally Posted by projectSHO89
All that for the wrong code...
P0171 codes aren't usually sensor problems anyway. Usually, they're due to a vacuum or exhaust manifold leak that throws the sensor's readngs out of range.
Steve
P0171 codes aren't usually sensor problems anyway. Usually, they're due to a vacuum or exhaust manifold leak that throws the sensor's readngs out of range.
Steve
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