Toyota - 4Runner :: Check Engine Light On - O2 Sensor Bad
Nov 22, 2013
1989 toyota 4runner. O2 sensor is bad and has the check engine light on. No need to spend $100+ on the sensor. Is there a way to disable it so the light goes off?
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Nov 22, 2013
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Toyota - 4Runner :: Check Engine Light Due To Low Compression
I have a 2005 Toyota 4Runner. 355,000 miles. No problems with it until now. About 2 weeks ago Check Engine Light came on. I replaced spark plugs (they were due), checked coils and fuel injectors and still have Check Engine Light on with code P0301 (Cylinder #1 missfire).So compression tests were done and cylinder #1 had 120 psi and others 170. I suppose 120 isn't terribly bad but is significantly lower than 170.
Question 1: If I reset the check engine light (turn it off), do you think it will pass California smog test?
Question 2: What do I need to cure the problem? Engine rebuild? JDM? or retire the truck?
Toyota - 4Runner :: Check Engine Light Came On And Code Was P0420 - O2 Sensors?
I have recently had about $1620 worth of work done on my 2000 4Runner because the check engine light came on and the code was P0420.. My invoice says they replaced the exhaust pipe assembly. Now 2 weeks later the light is back on with the same code...are the 02 sensors part of the "exhaust pipe assembly" or are they now going to tell me I need a bunch (2-4) 02 sensors replaced.
View 3 Replies4Runner/GX470 :: 1998 Toyota - Check Engine Light Flashing When Driving Past 70 MPH
Some background. I have a 1998 Toyota 4Runner V6 2WD with about 150,000 miles. A few months ago the check engine light was flashing when I am travelling over 70mph. The dealership said nothing is wrong when I asked them to look into it. But I didn't get any codes from it. I read on-line that it could be a possible misfire so I changed the plugs and wires.
A few weeks ago, the check engine light came on and stayed on. I took it to a dealership to diagnosis the problem, they came up with Mass Air Flow sensor was shot. I replaced that, and reset the computer. It still comes on and flashes at highway speeds. I bought a low end computer to read the codes.
I got P300 (Random/Multiple Misfire), P302 (Cylinder 2 Misfire) and P305 (Cylinder 5 Misfire). Cylinder 5 has the coil-pack and Cylinder 2 has the wire coming off the coil-pack for Cylinder 5. So I replaced the coil-pack. The light is still coming on and flashing. How to stop the light from flashing. It comes on only when I am travelling past 70MPH. I have tried just rev'ing the engine up to the same RPM's as I am running when doing 70, but the light doesn't flash then.
Toyota - Camry :: Check Engine Light Illuminated / Oxygen Sensor?
I own a 2000 Toyota Camry that was given to me by my father. The check engine light illuminated last year so I brought the car in to my mechanic. He said it was the o2 sensor and changed it. That lasted about a month , and the light went on again. This time it had to do with some valves that get stuck open (or closed) but also had to do with the amount of oxygen that goes into the carburetor . I asked my Dad if he had this problem, and he told me that the engine light was illuminated often, that he had brought the car in about 6 times, but nothing was found. Previously I owned a 1998 Camry, and had the same problem; the check engine light illuminates, the diagnosis is the oxygen sensor, that gets changed, the light goes on again, this valve thing gets changed but the light goes on again in a month. I can't get the car inspected with the engine light illuminated. The light always goes back on but nothing else is found wrong with the vehicle. I really know nothing about cars.
View 4 RepliesToyota - Corolla :: 2004 - Check Engine Light On / Oxygen Sensor Faulty
I have a 2004 Corolla with a Check Engine light on. The Toyota dealer diagnosed this as: "Oxygen Sensor Bank 1 Sensor 1 - slow to respond".
The diagnostic code is PO133. Elsewhere, I find that this code indicates:
The oxygen sensor is faulty.
The wiring to the sensor is broken / frayed.
There is an exhaust leak
Haven't noticed exhaust leakage, and I doubt the wiring is faulty.
1) Where is sensor 1?
2) Do I really need a new sensor, or can I clean the old one?
Toyota - Coolant - 4runner :: 2001 - Check Engine / Trac And VSC Off Lights Came On
I have a 2001 toyota 4runner 6-cylinder 3.4L engine with about 197xxx miles on it. I just took it in for an oil change a few weeks ago and when they checked all the other fluids in the truck they said the coolant seems sludgy and dark. Also the check engine light and vsc trac and vsc off lights came on, a week or so before the oil change. I'm pretty mechanically inclined and do almost all my work myself with the limit of the tools i have, but i can't seem to figure out what is causing this.
View 6 RepliesToyota - T100 :: Check Engine Light On Due To Faulty Emission Evap Control Pressure Sensor
Engine runs perfectly but "check engine" light" stays on due to faulty Emission Evap control pressure sensor (P/N; 89460-0w020). Problem is Toyota no longer makes this part and there is no after market for it. It appears I may have to "junk" a perfectly good truck.
View 9 Replies4Runner/GX470 :: Service Engine Light Is On / Defective O2 Sensor
2004 Toyota Forerunner, SR5 with V-6. The service engine light is on. It was diagnosed at one of the local chain parts stores as having a defective
O-2 sensor. I learned this vehicle has two sensors. The first is before the catalytic converter (the engine side). The second is after the catalytic converter (tail pipe side).
When I was under the car I saw the front sensor had evidence of minor leakage around the threads. It appeared to be a fluid stain. ??? Is there a way to determine which sensor is defective and needs replacement.
Chevrolet :: Check Engine Light Came On About O2 Sensor
I have a 06 chevy 3500 express van with a 6.0 engine. The engine light came on about the O2 sensor bank 1 sensor 1 and bank 2 sensor 1 came up on the on the scan tool. It run great. how do I fix it
View 4 RepliesPassat (B5) :: Check Engine Light Pop Up - IAT Sensor
I had a check engine light pop up and I went and got it checked out. Comes to be its a IAT sensor or bad connection with this sensor. I change the sensor and made sure the wires on it is all good. The question is, I still have the check engine light up, does the code need to be deleted? And what happens if the code gets deleted and problem is not fixed?
View 3 RepliesPrius (Gen 2) :: Check Engine Light Might Be Idle Sensor?
The check engine light came on in my 05 so took my local shop and they checked the code and said it was the Idle Sensor. They were not able to make the repair. Since then the light went off for a few days then came back on. I now notice the gas motor does not turn off when I stop at a traffic light.
View 14 RepliesLexus IS 2014+ :: Check Engine Light Just Came - O2 Sensor?
My check engine light just came on around 7000miles on my 2014 IS350. Dealer says that I need a new O2 sensor. Just wanted to see if this is common and O2 sensor replaced within the 1st year?
View 7 RepliesSanta FE SM (2001-06) :: 3.5 V6 - Check Engine Light Keeps Going On And Off - O2 Sensor?
I recently purchased a 3.5 V6 Santa fe. The Check engine light keeps going on. I took it to a few shops and I am getting the same code. It is the O2 sensor in bank one. (I think the the code was po170.) The light keeps going on and off. All I can find are the same problems with different Santa Fe engines (2.7, etc. )... My SUV has 100,050 miles on it.
View 1 RepliesLexus GX 2004-09 :: Check Engine Light On - O2 Sensor Location
I have an 04 gx with a check engine light on I had the code read at auto zone. That tells me o2 sensor bank 2 sensor 1. I have already changed the sensor they said it was and still have the code. What is the correct location of this sensor?
View 2 RepliesCamry :: 2009 - Check Engine Light Is On And O2 Sensor Dead
My 2009 Camry check engine light is on. Dealer said the two O2 sensor both are dead and need to replace. After dealer reset the check engine light I have driven two days for 50 miles and the check engine light doesn't come back. If the O2 sensor is bad how long does it take for check engine light on again? Is it possible the check engine report on by mistake since two O2 sensors got bad at the exact same time is really rare.
View 13 RepliesSilverado :: Check Engine Light Came On - Mass Air Flow Sensor
Ok so I just replaced my mass air flow sensor about a week ago. My check engine light just came back on and when I scanned it it said mass air flow sensor. What could be causing this to happen again? The codes are P0102, P0440, P0440.
View 4 RepliesGolf V R32 :: Check Engine Light On - Oxygen Sensor Fault
I recently bought my new (For me) R32, the first owner of the car remove the 2 catalyst from the car and now I have the check engine light on. When my friend put the vagcom on the car it shows an oxygen sensor fault. What can I do to fix this? can I just buy a MagnaFlow exhaust?
View 11 RepliesVolvo :: Check Engine Light Due To O2 Sensor Is Bad - OBD Code P0455?
2004 XC90 T6. Local Volvo dealer (Bangkok at the time) said my check engine light was due to the O2 sensors going bad. I changed out the one under the car, then my wife threw out (accident) the other so I didn't change the one accessible from the hood. The check engine light went away so I figured that was that.
Fast forward a year later, I buy an Autel Maxiscan MS509 and now I'm getting check engine code P0455 which is probably the O2 sensors I didn't replace. Other than deductive reasoning, is there some way to look at the data on my OBD reader to confirm which O2 sensor is bad?
Camry :: Check Engine Light Is On For Bad Knock Sensor In Bank 1
Wife has a 08 solara 2.4 auto. Check engine light is on for bad knock sensor in bank 1. Now car is not pulling itself, it takes off fine then shifts and falls on its face, I think its missing 2nd and going to 3rd. It is also not shifting into 5th so its staying in 4th and using a lot of gas. I tried manually shifting but it still goes to 3rd and will not go to 5th. I have been told this knock sensor could be causing it all. Cant clear code, I hit clear but nothing happens. We don't have a lot of money to pay the Toyota dealer to fix it and I can do all the work but they wont even show me where the knock sensor is.
View 5 RepliesNissan - Altima :: Check Engine Light Came On / Knock Sensor Is Bad
last fall, the check engine light came on- Autozone states the knock sensor is bad. At the same time, odometer/cruise would work off and on. Now as months have gone by, the odometer RARELY works. Could all the electrical issues be connected? Is odometer controlled by Speed Sensor on the transmission or somewhere else?
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