HELP! 997.1 in limp mode with multiple CELs
Thread Starter
6th Gear
Joined: Oct 2019
Posts: 6
Likes: 5
From: Stuttgart, Germany
HELP! 997.1 in limp mode with multiple CELs
All,
I could use some help with my new to me 2005 997 (3.6--2006 build date). I replaced the bank 2 downstream 02 sensor last week after a P0161 code popped the CEL. Unfortunately this didn't fix the problem, and the CEL with the same code came back within 100 miles or so. After running some errands with the car this morning, I decided to investigate further. Pin 1 had 1.25 volts with the car running. I could not get a good resistance reading on pin 2. I took a look at the wiring just behind the female plug that goes to the wiring harness and saw lots of electrical tape, so naturally I investigated. The 2006 plug is different from the 2005 version, and whomever had put the 2006 motor in had just made the connection for the updated plug with electrical tape. I took all of this off, cleaned up the wires, and soldered them, hoping this would solve the problem. I then wrapped the wiring with non-stick electrical tape and reconnected the 02 sensor. After taking the dog for a walk, I went to take the car for a test drive. The car wouldn't rev over 1800 RPM, and threw the following codes: P0158, P1091, P0132, P0138, and P0152. I checked the fuses--they were all ok. I then disconnected the battery for 30 minutes or so to reset the computer. I started the car again, with similar results--the car still stumbled and would not rev over 1800 RPM, this time throwing P1091, P1175, and P0132.
I did not take the airbox off while doing the wiring repair.
What happened?? Please help!
Andrew
I could use some help with my new to me 2005 997 (3.6--2006 build date). I replaced the bank 2 downstream 02 sensor last week after a P0161 code popped the CEL. Unfortunately this didn't fix the problem, and the CEL with the same code came back within 100 miles or so. After running some errands with the car this morning, I decided to investigate further. Pin 1 had 1.25 volts with the car running. I could not get a good resistance reading on pin 2. I took a look at the wiring just behind the female plug that goes to the wiring harness and saw lots of electrical tape, so naturally I investigated. The 2006 plug is different from the 2005 version, and whomever had put the 2006 motor in had just made the connection for the updated plug with electrical tape. I took all of this off, cleaned up the wires, and soldered them, hoping this would solve the problem. I then wrapped the wiring with non-stick electrical tape and reconnected the 02 sensor. After taking the dog for a walk, I went to take the car for a test drive. The car wouldn't rev over 1800 RPM, and threw the following codes: P0158, P1091, P0132, P0138, and P0152. I checked the fuses--they were all ok. I then disconnected the battery for 30 minutes or so to reset the computer. I started the car again, with similar results--the car still stumbled and would not rev over 1800 RPM, this time throwing P1091, P1175, and P0132.
I did not take the airbox off while doing the wiring repair.
What happened?? Please help!
Andrew
Three Wheelin'
Joined: Jun 2018
Posts: 1,477
Likes: 719
From: NJ, USA
All,
I could use some help with my new to me 2005 997 (3.6--2006 build date). I replaced the bank 2 downstream 02 sensor last week after a P0161 code popped the CEL. Unfortunately this didn't fix the problem, and the CEL with the same code came back within 100 miles or so. After running some errands with the car this morning, I decided to investigate further. Pin 1 had 1.25 volts with the car running. I could not get a good resistance reading on pin 2. I took a look at the wiring just behind the female plug that goes to the wiring harness and saw lots of electrical tape, so naturally I investigated. The 2006 plug is different from the 2005 version, and whomever had put the 2006 motor in had just made the connection for the updated plug with electrical tape. I took all of this off, cleaned up the wires, and soldered them, hoping this would solve the problem. I then wrapped the wiring with non-stick electrical tape and reconnected the 02 sensor. After taking the dog for a walk, I went to take the car for a test drive. The car wouldn't rev over 1800 RPM, and threw the following codes: P0158, P1091, P0132, P0138, and P0152. I checked the fuses--they were all ok. I then disconnected the battery for 30 minutes or so to reset the computer. I started the car again, with similar results--the car still stumbled and would not rev over 1800 RPM, this time throwing P1091, P1175, and P0132.
I did not take the airbox off while doing the wiring repair.
What happened?? Please help!
Andrew
I could use some help with my new to me 2005 997 (3.6--2006 build date). I replaced the bank 2 downstream 02 sensor last week after a P0161 code popped the CEL. Unfortunately this didn't fix the problem, and the CEL with the same code came back within 100 miles or so. After running some errands with the car this morning, I decided to investigate further. Pin 1 had 1.25 volts with the car running. I could not get a good resistance reading on pin 2. I took a look at the wiring just behind the female plug that goes to the wiring harness and saw lots of electrical tape, so naturally I investigated. The 2006 plug is different from the 2005 version, and whomever had put the 2006 motor in had just made the connection for the updated plug with electrical tape. I took all of this off, cleaned up the wires, and soldered them, hoping this would solve the problem. I then wrapped the wiring with non-stick electrical tape and reconnected the 02 sensor. After taking the dog for a walk, I went to take the car for a test drive. The car wouldn't rev over 1800 RPM, and threw the following codes: P0158, P1091, P0132, P0138, and P0152. I checked the fuses--they were all ok. I then disconnected the battery for 30 minutes or so to reset the computer. I started the car again, with similar results--the car still stumbled and would not rev over 1800 RPM, this time throwing P1091, P1175, and P0132.
I did not take the airbox off while doing the wiring repair.
What happened?? Please help!
Andrew
I would recheck your connection.
RL Community Team
Rennlist Member
Rennlist Member
Joined: Oct 2007
Posts: 28,647
Likes: 8,436
From: Clemson, SC
Those are almost all voltage related Oxygen Sensor codes. Seems like you have something wrong with the wiring going from the car to the O2 sensors. Are those the wires where you say they cut and spliced in different plugs? If so, I would buy 4 new oxygen sensors (left pre and post cat & right pre and post cat) with the correct plugs for the boards that are in the engine bay to eliminate all the cut wires and splices. Bet that solves your problem.
