Corolla / Matrix 2009-13 :: Got P2195 / P0031 Obd Codes - Replace Both Sensor?
Nov 26, 2013
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?
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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)
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I have a 2010 Toyota Corolla 1.8L, the base model.
I recently had a check engine light, VSC off light (blinking) and traction control light come on. I took it to Autozone and had a p0037 code ring up for a new Bank 1 Sensor 2 oxygen sensor (downstream). I believe I have found the correct sensor (located under car, approximately near drivers seat) and it looks simple to replace, aside from the fact that the wires go through the car body.
Can confirm that I have located the correct sensor? And if so, what is the best way to get to where the wires connect?
Is it located under the drivers seat? What should I do about the rubber grommet located under the car where the wires appear to pass through?
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Can I replace just the oil filter without draining the oil? The reason is I have changed the oil today, but could not get the oil filter housing off, so when I get the proper tool in a couple of days - can I replace just the filter? I mean, will the oil stay in the sump or will all of it drain through the oil filter housing when I open it?
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how to replace the bulbs in a 2010-2013 Toyota Corolla I am finding older Corollas but not 2013. I did tear apart the dash but it look like they are now a self contained unit.
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Its been cold here in CT for the past three days. It's been in the negatives... My engine light came on last night with a p2414 so I ran it, looks like front o2 sensor (could be a couple of things), so I cleared it and waited. Today it came back with p2195 and p2414. A different code for the same sensor. But my question is this. Before I replace the o2 sensor. Is there anything common for this car that would throw this code?
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I broke one of my rear studs off today when I was putting my wheel back on. The rest seem okay, but I'm wondering how difficult it is to replace them? Is it as simple as hammering the broken one out and replacing it with a new one? I don't have to take the drum off, right?
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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?
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So driving home today cel came on and vsc started flashing.
The codes I got were pretty out there
P0420 - cat converter (this one I did expect)
B0cc0 ???
C3a32 ???
U0a8e ???
B3e1f ???
I'm wondering if this was poor communications between the unichip and ecu? As for the vsc flashing, people complained about this during rain. It is currently raining. But not certain this is the issue.
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I am looking at a 2013 S 1.8 with 38k miles... it seems to have oil leaking at or near what looks like the oil pressure sensor, but i have struck out finding a picture of one in place on the engine.
The oil stain is above and behind the harmonic balancer at a sensor that sticks straight out towards the firewall and looks like the oil pressure sensor.
The engine has not been washed and there are no other stains above it. I am more than capable of changing the sensor... if that is what it is. Is this a cause for concern?
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I have a 2010 coroola "S" and the ABS and Brake light have come on recently and it seems to drive fine. I have read the codes and the are : P000A and P050B
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i have Ksport kontrol pros and no mattter how i attach the brake line or abs sensor it rubs! how to rout them. i bought 3/8 heater hose for the brake line and spliced it to make a sleeve. sway bar endlinks used to pinch the ABS against the coilover but now it rubs the cv axle. 09 rolla s
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My engine light just went on and the fault codes are:
P0138 -PowerTrain (O2 Sensor Circuit High Voltage Bank 1 Sensor 2)
P0607 - PowerTrain Control Module Performance
I have just bought Denso 234-4305 Rear Sensor but I was wondering if there are any guides to show where it's located?
The only guides I found is for the 9th Gen Corolla.
The Car has 88k miles on it so I guess it's outside the emissions warranty. Thus what is the price of a new ECU just in case that's the problem?
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I am having trouble figuring out what a nut on my 2011 Corolla LE is called, so I am having alot of trouble looking up a solution on my own. There is a bolt above the oil filter and near a sensor that is leaking. I marked it in red in the below picture. I am having trouble looking up what to do without knowing enough about it to search.
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My friend was told by Toyota that the Air Fuel Sensor code was the reason why her 2010 Corolla VSC and engine lights were on. This was after she visited her mechanic who changed the O2 sensor.
Is there a way to change the Air fuel sensor herself without having to pay Toyota...
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What is the part number to the TPMS sensors for a 2011 Corolla S. Or any stock toyota ones that will work?
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My car is now 24/7 with this error which is Vehicle Speed Sensor malfunction an there seems to be no way of solving it, symptoms are:
*Speedometer not working, needle always in 0
*Power steering not working
*Car wont past 3rd gear
*Check engine light and power steering light on
I checked all 4 speed sensors and the wiring looks good and they look good. Also if i hit a bump, issue goes away for a couple of minutes, until i hit another, etc, so looks like a wire or short circuit, cant tell. Is there a speed sensor on the transmission as well? where is located?
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My '09 2.4L Vibe has started to leak coolant around the coolant temperature sensor. It seems rather odd to me.
Who makes the OEM model? It shows as GM Part 88975489.
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So I just replace my Cat. Converter with all new sensors in them. I just replaced my spark plugs. (I'm knocking out these check engine light problems) and I think I'm getting close to the root as to why these other parts went bad. Why my o2 sensor would be stuck on "lean" ....
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I have a 2012 ford f350 6.7 diesel....I have the following check engine light codes..
P0073 Ambient air sensor circuit high output
P009a Intake air and/ambient air correlation.
I replaced ambient air sensor in passenger mirror and auto zone said to replace the air charge sensor. I have done both still have a check engine light.
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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.
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