OS Sensor codes
Thread Starter
|
New User
Joined: Nov 2016
Posts: 2
Likes: 0
OS Sensor codes
I replaced the heater core in my truck this weekend. The only thing I was worried about was pulling the dash. The truck is a 1998 f150 with the 5.4 Everything went fairy well and decided to replace the AT Shift cable as well. Got everything put back. Truck runs, no leaks, no antifreeze smell. After running about 20 minutes, it started idling a little rough and my check engine light came on. The codes are p0136, p0156, p1131, and p1151. I know these are related to the OS sensors. My question is could it be as simple as I miss an electrical connection when putting the dash back in? Was thinking possibly somewhere on the passenger side under the kick plate or possibly something while hooking up the heater hoses? Maybe even a ground that didn't get connected back when putting the das back in? Any thoughts or suggestions would be most appreciated.
Lead Driver
Joined: Sep 2006
Posts: 7,907
Likes: 143
The codes are very specific when you look them up.
The 131/156 are heater circuits for both sides rear in the cats.
The 1131/1151 are the front sensors both sides.
I think you worked under the truck so check the plugs and harness for ground out or crosses.
These sensors come back to the PCM on the passenger side through the harness along with the transmission control leads.
These leads have no relationship to the dash work unless you did work in other locations.
Good luck.
The 131/156 are heater circuits for both sides rear in the cats.
The 1131/1151 are the front sensors both sides.
I think you worked under the truck so check the plugs and harness for ground out or crosses.
These sensors come back to the PCM on the passenger side through the harness along with the transmission control leads.
These leads have no relationship to the dash work unless you did work in other locations.
Good luck.
Thread
Thread Starter
Forum
Replies
Last Post
JLouis
Cooling, Heating, Ventilation & A/C
0
Nov 6, 2016 06:57 PM
krewat
Modular V8 (4.6L, 5.4L)
13
Nov 7, 2009 07:03 PM
fb_rider
1987 - 1996 F150 & Larger F-Series Trucks
1
Mar 20, 2004 10:45 PM
