Camry :: LE - P0031 Check Engine Code
What to do to get rid of P0031 check engine code on my 4 cyl. Camry LE. He replaced O2 and A/F sensor (Denso with CA emission), computer module (got dealer calibrated it), verified wiring/voltages, inspected the catalytic converter. When the code is cleared it will not come up for some time, but when the car is started cold it comes right back again.
View 2 RepliesCamry :: 2003 LE Check Engine Light Code P0031
I own a 2003 Camry LE. I went to Autozone to find out what the check enginge light was for and was given P0031. When the service person checked it out on the computer he said the probable causes were:
1) open or short circuit conditions
2) poor electrical connections
3) failed oxygen sensor
4) EFI relay fault.
I asked how it could be narrowed down and he said it I would have to get the car checked out.
Santa FE SM (2001-06) :: P0031 Code Came On
About 2 months ago, the check engine light came on and I had the code read, it came out as P0031, which is the 02 Sensor. Today, I had this 02 Sensor replaced and had the code reset, but later on today the check engine light came on again. The mechanic said I needed to drive it for about 100+ miles before the car resets itself. I drove it for about 30 miles before it did come back on.
View 8 RepliesLexus GS 2006-11 :: VSC And Check Engine Light Came On - P0031 Code
VSC, Check engine light just came on my 2006 GS300. I only have 50k miles on it. I had this happen a few years back and it was the Gas cap o-ring. This time I changed the gas cap and reset the codes but no luck. After starting the car, with a minute the lights come back on. So checked the code and here is what I'm getting:
P0031
Heated Oxygen
Sensor Heater
Control Circuit Low
Bank 1 Sensor 1
Doing a search for the code yields this: [URL] .....
Changing the sensor vs. checking something else that might be the issue?
Camry :: 2007 XLE V6 - Error P0031
Alright, so I've been battling this for a few hours. I know I need to replace a sensor, and that's about it. The issue, is I don't know if I need to replace an oxygen sensor or an air fuel ratio sensor. I have searched, but I keep finding conflicting information. So which do I need?
View 3 RepliesCamry :: 2003 - P0031 With New A/F Sensor?
It's time to go thru emissions testing, but I'm getting a P0031. New A/F Sensor (Denso 234-9041) did not fix it. California Emissions compliant.
2003 Camry, 2.4 16-valve
Car runs good, MPGs same as always, 26/27 and 30+
Old sensor has no resistance or continuity thru any of the pins.
New sensor has 2.5/2.8 ohms res between blk/blk pins. (? +B and HT ?)
200K miles, has burned oil since I got it w/ 140K. Have had MIL light on for two years, but did not care until now. Previously had diff DTC's, not P0031.
Swapped EFI relay with Headlight relay, no change.
Checked all fuses, all OK.
Cleaned ground on engine block and fender, no change.
Checking voltage at engine connector, sensor disconnected, car running, I'm seeing
Orange 3.31 = Blue Sensor wire (AF+ ?)
White 3.017 = White Sensor wire (AF- ?)
Blk/Red 3.827 = Blk Sensor wire (HT ?)
Blk/Wht 13/14 = Blk Sensor wire (+B ?)
I cannot find FREE online wiring diagrams anywhere. I have searched TN exhaustively, have not found anyone who actually fixed this problem, or provided a link to a wiring diagram.
So, which wire is the ground ? Should it show 0 voltage ? Is it controlled by ECM ? How do I test the ground continuity ?
Where is ECM located ? I want to unplug and re-plug.
Avalon 2005-12 :: P0031 Error Code / Part Number For O2 Sensor?
I have a check engine light come on in my 07 Avalon and had the car scanned. It was throwing error code P0031. I'm gonna go ahead and replace this O2 sensor, however, I'm having a hard time finding the correct part# for this sensor.
View 1 RepliesAvalon 2005-12 :: 2006 - Error Code P0031 / Heated Oxygen Sensor Is Bad
I received error code P0031 on my 06 Avalon the other day. It states that the HO2S (Heated Oxygen Sensor) is bad. Bank 1 Sensor 1. I located the sensor but have a few questions...
Just to give an over view for those that don't know where these are, there are 4 sensors the one in the front on the manifold (upper - B2, S1), (lower - B2, S2) and the rear manifold (upper - B1, S1), (lower - B1, S2).
All of the sensors look the same with 4 wires. what the part number is for the sensor? Also since this is the hardest one to get to, I would like to know where the wire routes to. I found the wire up to the connector on every other sensor except the one I need (B1S1). It looks like it runs towards the top of the engine but from the top I don't see it.
Camry :: P0031 And P0051 Codes After Accident On Gen 6 Vehicle
I have 2 x P0031 and 2 x P0051 after an accident. I rear ended an SUV. My hood got bent and the radiator got pushed in. The body shop said they don't think it was due to an accident. I can't possibly have 4 sensors go on me.
View 9 RepliesLexus GS 2006-11 :: 2007 - Getting Errors / P0031 / P2195 / P2238 / P0137?
2007 GS450h Lexus owner, and have got a few error codes appearing on her They are as follows:
Quote:
P0031 - Powertrain
HO2S Heater Control Circuit Low (Bank 1 Sensor 1)
P2195 - Powertrain
O2 Sensor Signal Stuck Lean bank1 Sensor1
P2238 - Powertrain
2) O2 Sensor Positive Current Control Circuit
Low bank1 Sensor1
P0138 - Powertrain
O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)
Am I right in saying, these are all just a dodgy bank 1 sensor 1 (engine bay) and possible sensor 2? Is replacing them myself feasible?
Corolla / Matrix 2009-13 :: Got P2195 / P0031 Obd Codes - Replace Both Sensor?
Both the P2195 (Oxygen sensor or A/F sensor stuck lean - bank 1 sensor 1) and P0031 (Oxygen sensor heater control circuit low - bank 1 sensor 1) were pulled on my 2009 LE (77K miles). Is it safe to assume that the upstream b1s1 sensor is the culprit?
I believe I've found the OE Denso part 234-9056 - is this the right one?
General question about O2 sensors - is it recommended to replace both the upstream and downstream at the same time, or is it not necessary to do that?
Corolla / Matrix 2009-13 :: P0031 And P0172 Error Codes - Car Sputters And Hesitates
My girlfriend drives an 09 corolla (1.8L I believe). I have an OBDII bluetooth reader w/ Torque App so to identify the issue I can get some data:
Last week I was driving the corolla and I got P0031: HO2S Heater Control Circuit Low (Bank 1 Sensor 1). Car seemed to run fine without any issues. My girlfriend brought her car in to her "mechanic". "mechanic" who will replace have of your engine only to realize that your gas cap was cracked. He apparently replaced 02 Bank 1 Sensor 2 (I'm still trying to confirm this and to get the part # to make sure). He reset the ECU and she drove for about 30 miles after which these codes popped up:
P0172: System too Rich (Bank 1)
P0101: Mass or Volume Air Flow Circuit Range/Performance Problem
The car was idling rough. I reset the codes and the car was running fine until all monitor systems were ready. When Catalyst, 02 Heater & 02 Sensor are not ready everything is running fine and I don't see any error codes. I cleared ECU a few times. The last time I was able to drive for over 20 miles without any issues. Currently the only sensor not ready is 02 and car is running fine but I have a feeling once its ready the car will start having issues again:
Summary (if you don't want to read everything)
*P0031: H02S Heater Control Circuit Low (Bank 1 Sensor 1) - Car runs fine
*Mechanic replaces 02 Bank 1 Sensor 2 (Trying to find part # and double check sensor name)
*ECU reset and car runs fine for 30 miles
*P0172: System too Rich (Bank 1) and P0101: Mass or Volume Air Flow Circuit Range/Performance Problem
*ECU reset - car sputters and hesitates
*When all monitors are ready same codes (P0172 & P0101)
Camry :: VSC And TRAC OFF Light Won't Go Away - CEL Code
I recently had a CEL code for bank 2 cat converter.. I drove the car with the CEL for 8 months and one day the VSC and TRAC OFF light popped on and wouldn't go away. I took it to toyota and they told me that it is because the check engine light is on and once the CEL goes off the others should as well. Well i recently replaced the bank 2 cat and cleared the CEL and iv driven over 300 miles already the CEL has not come back on but the VSC and TRAC OFF light remain ON....
View 2 RepliesCamry :: 98 - Getting EGR Code PO401 Continually
I have a 98 camry 4 cyl and am continually getting egr code po401. I've cleaned out and tested egr, replaced modulator and the vac switching valve. Replaced several hoses also. Car runs fine, in fact this code came the day after traveling 700 miles. It comes back on fairly quickly after properly resetting computer and 1 or 2 drives.
View 3 RepliesCamry :: Decoding Of Code C0205
I recently purchase camry 09 and when I did the computer for the car it returns me P0012 and C0205 errors. I have searched for P0012 error and got an idea to check the oil control valve. but for C0205, what exactly I have to check for?
View 2 RepliesCamry :: Code P0430, P0157 Came On
My 2009 Camry came down with the p0157 code which I looked up & is oxygen sensor circuit, low voltage bank 2 sensor 2. I'm trying to figure out which side this is(driver or passenger)? Also have a p0430 code-catalyst system efficiency below threshold.
View 2 RepliesCamry :: Code P0441 - CEL Not Going Off After Gas Cap Has Been Tightened
The check engine lamp on my '04 4cyl came on Saturday. I checked the code. It's P0441, which is supposed to be 'Evaporative emission control system incorrect purge.' I found a page on the web that said this might have to do with the gas cap. When I checked the cap it had not been tightened.
I've been driving it for 3 days and the check engine lamp is still on. How long should I expect it to take for it to extinguish? It seems unlikely to the point of incredible the gas cap was left loose (which I've never seen before) and another failure in this very system could have happened simultaneously. Particularly since this is the first time the check engine lamp has come on in 9 years and over 100,000 miles
Camry :: 2002 LE - CEL Came On / Code P1349
I have a 4 cyl 02 camry LE. Recently the CEL came on and a few minutes later the oil light. after a day or so they went away. When it happened, I immediately went to the auto parts store and they checked the engine codes and got only one the P1349 repeated several times.
About 6 months ago my water pump leaked and that was replaced along with the timing belt. Shortly after that I had the oil changed and they over filled it i found out. I changed the oil and that was fine. i did develop a slight oil leak from the top passenger side of the engine though. so far i don't notice my oil level dropping. I just see some oil spray in that area. I mention this as they seem related to the code.
The code relates to Possible causes
- Dirty or low engine oil
- Valve timing
- Oil control valve
- Variable Valve Timing controller assembly
- Engine Control Module (ECM)
Camry :: 2007 - Code P0606 / ECM Is Bad On The Car?
My friend has a 07 Camry 4cyl and has code P0606, Engine control module/Powertrain control module processor. The car runs and drives good. My friend recently got the piston rings replaced about a month ago for the recall, and he told me the service light was not on when he dropped off the vehicle. After he got it back it wasn't on and just came on a few days ago. Hard to believe the ECM is bad on the car, I'm thinking it was something with the removal and install of the engine causing P0606. Does it need to be reflashed?
View 1 Replies