DTC P0138: Heated Oxygen Sensor Circuit High Voltage <SENSOR 2>
#1
Evolving Member
Thread Starter
Join Date: Apr 2007
Location: Reading, Pa
Posts: 341
Likes: 0
Received 0 Likes
on
0 Posts
DTC P0138: Heated Oxygen Sensor Circuit High Voltage <SENSOR 2>
couldnt find anything in the ra forums but seems like a lot of the evo guys get this. i have a high flow cat and the non foulers. ive had this set up for a year now and i never had a cel from it. do you think the sensor just went bad? i have 55,000 miles on my car. the cel just came on and i reset it twice. keeps coming on within 15 miles.
Last edited by ralliart610; Dec 29, 2009 at 06:20 AM.
#5
Newbie
iTrader: (6)
Join Date: Jan 2004
Location: California
Posts: 47
Likes: 0
Received 0 Likes
on
0 Posts
O2 sensors should last more than 55K miles, especially if you're relatively stock. I believe high voltage indicates a rich condition, so your sensor could just be very dirty, throwing the SES light.
#7
Evolving Member
Thread Starter
Join Date: Apr 2007
Location: Reading, Pa
Posts: 341
Likes: 0
Received 0 Likes
on
0 Posts
i have header/dp and a high flow cat but ive had them for a year. the second o2 sensor is after the cat. why would it be ok for so long and now come on. after searching the evo threads that got this, they said they got this code during cold weather. it has been cold here but what can i do to prevent this from coming back on? this did come on after putting my k&n filter on my sri. why would that have anything to do with the o2 sensor?
Trending Topics
#8
Newbie
iTrader: (6)
Join Date: Jan 2004
Location: California
Posts: 47
Likes: 0
Received 0 Likes
on
0 Posts
Maybe this eliminator will work for you.
ROAD/RACE "Check Engine Light" Eliminator (For Headers/Downpipe)
Disclosure: I don't work for RRM.
ROAD/RACE "Check Engine Light" Eliminator (For Headers/Downpipe)
Disclosure: I don't work for RRM.
#9
Evolving Member
Thread Starter
Join Date: Apr 2007
Location: Reading, Pa
Posts: 341
Likes: 0
Received 0 Likes
on
0 Posts
i cleared the code one more time. this time with a code reader. its off now for 75 miles. the weather has warmed up some. has anybody else had a cel during cold weather only with their RA?
#10
Evolving Member
Thread Starter
Join Date: Apr 2007
Location: Reading, Pa
Posts: 341
Likes: 0
Received 0 Likes
on
0 Posts
ok 115 miles and the code came back on. its warm out to. so i dont think the cold weather has anything to do with it now. i guess ill get a new sensor and see how that goes.
#11
Sounds like you've got a dead rear o2 sensor. There is a remote chance that it's a wiring fault but I have seen a few of these CELs and they were always corrected by replacing the rear O2 sensor.
-Michael
-Michael
#12
Evolving Member
Thread Starter
Join Date: Apr 2007
Location: Reading, Pa
Posts: 341
Likes: 0
Received 0 Likes
on
0 Posts
ok i ordered an o2 sensor and it arrived today. i got it from www.oxygensensorsplus.com. it said for 05-06 lancer ralliart 2.4. the connectors arnt the same. it is four wire though. my question is what colors go to what. the new sensor is white, white, grey, and black. stock colors are (IIRC) red, red, blue, and yellow? what goes to what?
Last edited by ralliart610; Jan 10, 2010 at 09:36 AM.
Thread
Thread Starter
Forum
Replies
Last Post
yesevo
Evo Engine / Turbo / Drivetrain
12
May 16, 2006 11:30 AM