codes 2271 & 0139
12-04-2016, 05:20 PM
#1
2nd Gear
Thread Starter
Join Date: Dec 2016
Age: 47
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
codes 2271 & 0139
Can someone help me out here, My 2007 tsx's check emissions system light periodically comes on.
I get 2 trouble codes, one stored:
2271 - O2 Sensor Signal Biased/Stuck Rich
And one Pending:
0139 - O2 Sensor slow response
I know the 139 is pretty common, just change the sensor? but any idea what the first code is or if I should worry about it? or if its releated?
Thanks in advance
I get 2 trouble codes, one stored:
2271 - O2 Sensor Signal Biased/Stuck Rich
And one Pending:
0139 - O2 Sensor slow response
I know the 139 is pretty common, just change the sensor? but any idea what the first code is or if I should worry about it? or if its releated?
Thanks in advance
12-05-2016, 11:28 AM
#2
P2271 means the secondary O2 sensor (aft of converter) is stuck rich (high voltage perhaps 0.8-0.9V. This is most likely a bad O2 sensor. See attached diagnostic procedure.
P0139 is secondary O2 sensor fault and might also be triggered by this code.
good luck
P0139 is secondary O2 sensor fault and might also be triggered by this code.
good luck