How do I know for sure what is going on with my car? This may be a sign of a failing throttle position sensor. Or sometimes just the light needs to be reset. Vacuum leakI had this exact thing happen on my 98 Expedition Eddie Bauer. This is where all those DIY skills come into play. It’s actually a generic code, meaning it can be thrown from any vehicle after 1996. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. Always follow the instructions in your owner’s manual for Oxygen (O2) Sensor replacement. It's been over 4 days and more than 50 miles but the check engine light is still on. down the road the check engine light came back on. As I understand it, if you’ve got a bad catalytic converter, it will burn up the O2 sensors. If you do have a failed oxygen sensor, follow these steps to replace it. No vehicle owner wants to see the check engine come on. Please see our. The trouble codes associated with the OBDII scan will reveal which sensor is at fault and why it is bad (at least what the computer thinks is wrong). That assembly should... Hello. I am merely a backyard mechanic. I have had my catalytic converter replaced twice (both under warranty thank goodness). The problem turned out to be a malfunctioning oxygen sensor. Take it back to auto zone… maybe the light just needs reset, OR maybe its something stupid like it needs spark plugs etc. This scenario has baffled every car technician at some point in their career, from new to Master Mechanic. I used the Peake RC5/FX to sheck for the code and it gave me 0d - oxygens sensor… After the second one, I had 3 of the 4 O2 sensors replaced and then shortly after, the 4th one went bad. I referenced my reapir manuals and found that there is a primary and alternate O2 sensor for a 1998 Honda DX L4 1.6L engine. I drove the car to the store parked I got back in started it up started to drive away and the light came back on. Synthetic oil is always preferred. The ECU then adjusts the air-to-fuel ratio to optimize the fuel combustion. This light indicates that the battery pack may not be charging to its full capacity anymore. See page 6-5 at the foregoing link for full details. The Saturn Oil Life Monitor indicates when and what service your car needs. It’s a good thing that the check engine light would come on, as there is more than one oxygen sensor, and they can be difficult to get to and test. It determines the amount of oxygen in the gases, which indicates how well the fuel is being burned. Regardless, you should always bring your car to a mechanic as soon as you see the engine light turn on. I have a 2005 Honda civic LX 5spd manual coupe, the check engine light is on so i went to Autozone and they said it was throwing the code P0135 Bank 1 o2 sensor circuit code, I bought a new o2 sensor and had them to clear the code and two seconds after I started the car the code came back on, the guy gave me a print out of what could be wrong, starting with the O2 sensor, then the plug on … I called the exhaust place and they said it was ok to continue driving. Engine light code PO141. Hi There, Car Repair Manuals and Tips on Common Car Problems, 2003civic Ex Po141 Changed Secondary O2 Sensor Cel Comes Back On Right Away. In this case, if you don't know how to reset check engine light, here are … Check the codes check the prom and run a data stream to verify that everything is working properly. Compact cars as a class are generally meant to be commuter vehicles: with excellent gas mileage, an entry-level price point, and decent safety ratings for those who are on the road the majority of their time. Conclusion If your Check Engine light is constantly trying to get your attention, one possible problem could be a bad O2 sensor. Car symbols, or dashboard lights, are a car service reminder. about 15mi. The most common DT… If you know where the sensor is, you only have to unclip the old sensor and replace … Good Luck. You’re driving home from work one day when the worst nightmare for a car owner happens: the ‘check engine’ light pops on. If it is not within spec replace the sensor. It is possible that your dust shield behind the rotor is coming in contact with the rotor sometimes. Three days after that, the check engine light turned off. Get it check out, sometimes it something simple as a bad gas cap. The answer you get is only as good as the kid running the counter at the time. On my way to work this morning the darn check engine light came on again. Any time you change stuff like that,you need to clear the codes.take it back to auto zone and maybe they can clear them for you. I’m getting TERRIBLE gas mileage, only between 12-14 mpg. With any luck your check engine light will be off. document.write(new Date().getFullYear()) With the key on engine off you should see battery voltage to one of those pins. I would recommend to use a small screwdriver and try to pry the dust shield away from the rotor anywhere that it... Hello. Most of the time, the check engine light will come on. Yes I would let Auto Zone check it again and see what the problem is. In some cases they do not always turn off immediately and take a bit of driving for the computer to recalibrate and recognize that the problem has been corrected. I took it to a shop and Autozone to get the test and both told me it was the o2 sensor after the cat converter. Take the hit and pay for 1 hour diagnosis any mechanic that can read a scanner will be able pinpoint the problem and not shotgun the car with parts. Check engine light was on so I took the car to Midas they pulled a code (133) and they said its Oxygen Sensor is not working and cost to fix it would be around $350 including parts & labor, I thought it’s expensive and took the car to Auto Zone for second opinion, Auto zone confirmed that Oxygen Sensor might be having problem. Background on Oxygen Sensors. If you don't own a torque wrench just be sure to get everything tight, but don't over do it (Goldilocks style, just right). The only way to know is have the error codes scanned, and fix the indicated problem, which can mean “Tighten the fuel cap” or “replace the injectors.”. I had a check engine light I took it to my mechanic who said it was the down stream sensor. The noise goes away after I drive my car for a while. These cars also make... Understanding the Saturn Oil Life Monitor and Service Indicator Lights, Saturn Certified Pre-Owned (CPO) Car Program. Overall, you will be OK with 5W-30. A week ago, the check engine light came on on my '98 Honda Civic Dx. costs, Hand-picked, community-rated professionals, Explore nationwide job opportunities for automotive A faulty oxygen sensor can also reduce your truck’s gas mileage. How Much To Replace The Oxygen Sensor On A 2002 Ford Mustang, 3.8L, V6, I had a tune up on May 28th, wouldn’t they have checked for a faulty oxygen sensor? In your case, it sounds like the oxygen sensor is what caused the code to be triggered. p0420 Code: Time to Replace an Oxygen Sensor? I replaced it yesterday and that took care of the check engine light. Like o2 sesor, your cat, or anything else related. Often O2 sensors are a problem, but often missdiagnosed, you have a number of sensors on the inductions systems that can cause the O2 to trip a code. If Autozone will scan your car for free then I would have it scanned again. Optimize fleet uptime and compliance via mobile vehicle repairs, Partner with us to simplify and scale fleet maintenance, Over 25,000 topics, from beginner tips to technical The engine… Hi There, The last diagnosis is correct in that the sensor replaced caused the check engine light to turn off. Check the sensor again. Online auto repair questions, problems and troubleshooting. I had it scanned again and it came up with the same thing. My check engine light on my '97 chevy k1500 came on after I had my transmission rebuilt. The check engine light comes on when your car’s computer detects an issue within the powertrain. I also asked the driver if he had been experiencing poor fuel economy. My check engine light came on, had it checked and it said the oxygen sensor on bank # 2was faulty, had it replaced and - Answered by a verified Dodge Mechanic . The engine has been racing when the weather is hot. However, I need to know where your leak is coming from. Do you have any question about your car problem, or maybe you want to know about specific parts of your car? Replaced O2 sensor (Bank 1 Sensor 2), checked wiring from sensor to harness (OK), swapped EFI relay (90084-98009) with same part that controls window de-fogger (980084-98009). You only mentioned getting one replaced, perhaps it’s a different one. If your Check Engine Light suddenly turns on, there is a good chance you have a problem with one of your vehicle’s oxygen sensors. i checked the voltage of the post cat oxygen sensor it was fluctuating between 0.420 to 0.435. My car has 148377 miles. This can also sometimes cause codes … I suggest going to a good garage and having them run a diagnostic and take the guseeing out of this. Please know that I am not a professional mechanic. Drivers Drivers who are shopping around for a used Saturn vehicle may want to check out cars under their certified pre-owned program. Any ideas? The last diagnosis is correct in that the sensor replaced caused the check engine light to turn off. If the driver brought the vehicle in when the check engine light first came on an oxygen sensor would have been saved. Oxygen Sensors, otherwise referred to as O2 Sensors, and their related check engine light codes, can be troublesome at the very best! Faulty O2 sensors are a common cause of illuminated Check Engine Lights. Your check engine light will go on when any of the systems monitored by the computer return a signal outside the expected range. YourMechanic All rights reserved. If you have to drive 10 minutes before the Check Engine light comes on with the same code with the new O2 sensors, then the O2 sensor may be getting coated or contaminated where it can no longer read the oxygen content in the exhaust gasses and the voltage signal from the O2 sensor remains high.
2020 replace oxygen sensor check engine light came back