O2 sensor gone bad?

scootr · 05-09-2002, 01:18 AM

I got a CE light and the code said pe141 or something and it was the heat signal from the O2 sensor. "Heat signal malfunction." We looked at the O2 data and it would not go higher when you reved it or anything. I think it is the rear one, because it said something along the lines of O2 #2. Anyone else have this problem? I have about 7500 miles with turbo now and I am at 28000. Maybe the sensors just cant take the rich mixture.

Thanks,
scootr

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8Complex · 05-09-2002, 09:07 AM

I just read that code off a friend's car as well, his car is in stock form and was idling like crap, but ran great at WOT. Sounded much to me like an O2 sensor as well, though while it said bank1 sensor 2, I didn't think the rear O2 could actually cause the car to idle wrong like that. Felt more like sensor 1 (front). Not sure. *shrug*

scootr · 05-09-2002, 10:11 AM

I think it said bank 2 sensor 1???? Either way How do I find out which one is it for sure, because I need a new sensor somewhere?

8Complex · 05-09-2002, 10:18 AM

P0141 O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)

Sounds like the rear sensor to me. They're damn expensive though... like $100 with a massive discount at the dealership, like $130 retail.

scootr · 05-10-2002, 04:08 AM

Thanks 8,
looks like time to buy a rear O2. My buddy gets dealer prices, so hopefully it is not too much. I wonder how long the new one will last? We'll see.

05-09-2002, 01:18 AM	#1
scootr Scooby Specialist Member#: 2649 Join Date: Oct 2000 Location: Sebastopol (Graton), CA Vehicle: 00 2.5RS-t cpe BRP 64 chevelle SS	O2 sensor gone bad? I got a CE light and the code said pe141 or something and it was the heat signal from the O2 sensor. "Heat signal malfunction." We looked at the O2 data and it would not go higher when you reved it or anything. I think it is the rear one, because it said something along the lines of O2 #2. Anyone else have this problem? I have about 7500 miles with turbo now and I am at 28000. Maybe the sensors just cant take the rich mixture. Thanks, scootr * Registered users of the site do not see these ads.

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05-09-2002, 09:07 AM	#2
8Complex Moderator Member#: 922 Join Date: Feb 2000 Chapter/Region: MWSOC Location: Schaumburg, IL Vehicle: 04 FXT Red	I just read that code off a friend's car as well, his car is in stock form and was idling like crap, but ran great at WOT. Sounded much to me like an O2 sensor as well, though while it said bank1 sensor 2, I didn't think the rear O2 could actually cause the car to idle wrong like that. Felt more like sensor 1 (front). Not sure. shrug

05-09-2002, 10:11 AM	#3
scootr Scooby Specialist Member#: 2649 Join Date: Oct 2000 Location: Sebastopol (Graton), CA Vehicle: 00 2.5RS-t cpe BRP 64 chevelle SS	I think it said bank 2 sensor 1???? Either way How do I find out which one is it for sure, because I need a new sensor somewhere?

05-09-2002, 10:18 AM	#4
8Complex Moderator Member#: 922 Join Date: Feb 2000 Chapter/Region: MWSOC Location: Schaumburg, IL Vehicle: 04 FXT Red	P0141 O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2) Sounds like the rear sensor to me. They're damn expensive though... like $100 with a massive discount at the dealership, like $130 retail.

05-10-2002, 04:08 AM	#5
scootr Scooby Specialist Member#: 2649 Join Date: Oct 2000 Location: Sebastopol (Graton), CA Vehicle: 00 2.5RS-t cpe BRP 64 chevelle SS	Thanks 8, looks like time to buy a rear O2. My buddy gets dealer prices, so hopefully it is not too much. I wonder how long the new one will last? We'll see.