Lexus SC430 :: Faulty 02 Sensor Could Damage Motor?
Jul 25, 2013
I was wondering whether a faulty 02 sensor (in my case bank 1 sensor 1) is bad for the motor or not?
It is clear to me that a worn out 02 sensor can cause the following problems:
Wastes fuel
Can cause engine performance problems, such as surging and hesitating
Is the number one cause of excessive harmful exhaust emissions
Accelerates catalytic converter damage
BUT are there any other risks in case of damage on the long term?
What the ECU will do in case of a faulty 02 sensor? Will our Lexus order a rich fuel mixture to prevent heating problems or are we also running the risk of a poor mixture?
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Does coasting in neutral (to save fuel) cause any damage or wear when shifting the gear lever into Drive while moving?
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I have a 2004 Prius CVT-E with 160,000 miles. It gave me the check engine lights and after I drove it for a mile, it ran out of power and wouldn't accelerate, though it kept starting. After towing it to the dealer, they said there was a "loss of communication with ECMs and RCM junction connector for J18 for communication line due to water damaged from windshield leaking and shorting connector and junction block."
There was also water damage to the carpet and headliner assembly (it was raining that day). They said that the windshield must've been installed improperly at some point, but I don't remember ever having to replace the windshield.
So is it possible that they can tell that the windshield was different from the original, and any problems with original windshields?
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My Bank 2 Sensor 2 oxygen sensor is faulty and I need to replace it. The guys at the parts store were pretty certain it is downstream driver's side, but I just want to make sure before I PB Blasted and removed it. 2008 F250 SD v10 ....
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I have recently had my motor mounts and transmission mount replaced.
Before the replacement, the car would shake quite noticeably when the engine was being started (maybe even shake 'violently'). I thought this was normal until I had my motor mounts and transmission mount replaced. Now when I start the engine the SC430 doesn't shake at all. The difference is profound.
Just a head's up. I'm not sure what the implications are of running with bad motor mounts for a long time, but I decided to get it done because my car would shake when idle and at stop lights.
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What is the location of the Coolant Temperature Sensor? I search but I couldn't find a picture or diagram for our car.
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I noticed my engine light and vsc lights came on two days ago and then after a restart went away.
It's been two days and today the lights came on again and I noticed a hesitation in acceleration.. got the codes scanned I believe they were p0330 and p0325 for bank 1 sensor 1 knock sensor. They wiped the code so I'm going to drive it to see if it comes back on? Where is this sensor located?
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I bought my 2004 SC 430 used in 2005. The seat belt "reminder" buzzer or ding was silent and I have left it that way. Now that I am a member of this forum (just joined mid February) and after having so many questions answered solving problems I have been living with (like a steering wheel squeal when it retracts to let me out of the car, and a knocking above and behind the back seat, which turned out to be the shell that goes over the top when it is down, and lots of other solutions to things I did not want to go to the dealer about) I decided it is time to see if I can reconnect the seat belt warning. So, might that be a fuse?,Or maybe some wire under the dash that has been unplugged?
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My Lexus SC430 parking sensor alarm sounds intermittently while I am driving. (No, I do not tailgate the car in front.)
It has happened several times, all but once when it was raining. On that one occasion, the sun was shining. It happened again today while it was raining, and continued to sound after the rain had stopped, but the road was still wet.
What could be causing this to happen, and how can it be prevented. I have decided to fit an ON-OFF switch, if the problem cannot be solved conventionally.
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Replaced my post cat drivers side O2 sensor tonight because I was getting zero voltage and a p0430 code. This is bank 2 sensor 1.
But I'm still reading zero voltage!! How could I still be getting zero voltage?? I checked the connections and they are firm. Checked every single fuse in car.
After my recent accident, the center console lights don't illuminate. My nav door doesn't close too. Could these all be related?? The connector for the O2 sensor is right next to the console, so maybe there is a loose connection or plug or perhaps a stray ground?? I do have wires all over the place in under the shifter bezel from aftermarket stuff..
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I have a o3 sc430 that's driving me crazy I have replaced the 02 sensor on my car three times and the cars vsc and check engine light comes back on after driving less then a mile. If I really step on the gas it'll come on faster. Where should I look for a vacuum leak? The mechanic says it could be electrical problems too...
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How can I locate a faulty wheel sensor with VAG? Should I replace one sensor or all 4?
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My left side mirror, motor will move left and right but it will not move up and down. Is there a DIY way to fix this? Is it a motor problem? Can I buy the part and fix it?
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We took our 2008 Prius in for a check engine light. The dealership said oxygen sensor was faulty. Changed that and had them change the serpentine belt while there due to cracks in the belt. My wife filled up the car the next day ( it took 13 gallons) but gas gauge was not registering a full tank. We drove 67 miles and I decided to pull into a gas station and see how much it would take since the gas gauge was not working properly. It took over 7 gallons.
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My 2003 Santa Fe 3.5 is in limp mode, you can't change the gears and showing signs of faulty tps sensor, but my mechanic is telling me to change whole electronic throttle system , May be its only the sensor.
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I went to emissions test my 2002 Accent, 1.5L 5spd, and failed because of a faulty engine coolant sensor. Problem is, I can't find it anywhere! Worse, I can't find anything online either. I have my second child on the way and need to sell the car and this is the only thing preventing me to sell. Is it worth it to replace myself or to take to a shop and have them do it.
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I have a hyndai Sonata v6. It is 2006 model and has done 86K miles. It recently failed the inspection and I was told it has faulty oxygen sensors. I have replaced the sensors. But now I am advised by the mechanic that I need to drive abut 200 miles before I can take it for the inspection again because it takes some time for the sensors to get adjusted. Is that true ?
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If the upstream pre-cat sensor is bad could it cause a P0421 CEL error? 2001 Mazda Protege L4 2L 116,800....
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I thought this strange occurrence I am about to describe was maybe happening because of a faulty air-fuel oxygen sensor, that I knew was bad do to a code test that was done, when my check engine light came on. However, after changing the air-fuel oxygen sensor, doing a reset on my check engine light over the weekend, this same occurrence is happening, to spite the check engine light remaining off. Here is what is happening.
When I start and drive it to normal driving temperature then put the car in "Park" with nothing turned on, the car will shake the idle speed will move up and down until it will eventually kill.
Special Note: It does not always have a idle drop and kill the engine every time. If I turn the A/C on in "Park" it idles up higher and does not ever kill. Could it be a bad Idle Air Control Motor?
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My first Prius, an 05 has 249K and performs pretty much flawlessly. My second, an 04 which I purchased in May, has 75K. While driving the 04 yesterday, all the lights came on the dash and really scared me. I immediately pulled off the road and checked belt, fluids and anything else I could. I then called the dealer and they thought since the car was running normal, to bring it in. For a hundred dollars I was told the HV battery, though working and not a problem, would have to be replaced due to a faulty "battery temp sensor" and that this part is not repairable....I need a new battery! Code POA9B ... Tomorrow I am taking the rear panel out and check the HV battery fan, etc. Can I drive the car with these lights on? Everything seems to work but the CC.
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Still having problems with my 2.4l 2002 santa fe. At stand still the MAF readings are within range. At 2000rpm it reads 9.3 gm/s. the info I have says it should be between 7.89-9.83.
When driving along at 50mph, 5th gear, engine speed 2000rpm it reads approx. 25.0 gm/s. at 3000rpm it reads 48 gm/s. Is the MAF sensor faulty?
It is now not running very well with fault codes P0171(fuel system to lean) That code comes up whilst driving at speed. I also get P0172(fuel system to rich). I got that one whilst driving slowly in a car park.
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