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First of all, it's H02S not H025. That's an oxygen sensor TC. H02S Circuit Low Variance Bank 2 Sensor 1 If the other two codes on it are for O2 sensors as well, that means all three are, and you're going to need a professional honest mechanic to get a little deeper into your car and figure out the underlying problem.
I have a 2002 Hyundai XG350, and I was quoted $920 for my timing belt - that's because I have to replace the belt, both pulleys, AND the water pump, because on my car the water pump acts as a third pulled for the TB system. But, I surfed for better prices, and at dealer price (I work at a dealership) I can get the timing belt kit for $380, and I know it's not going to take six hours of labor, nor do they charge me more than $60 an hour for labor, so I just saved myself a couple hundred dollars. To answer your question, I can't give you an exact price because we own different vehicles, but I can tell you that replacing your TB system is pricey and going to cost you somewhere between $500 and $1000, give or take. Hope this helped :)
My ABS and TCS lights have been on for ages .. it doesn't mean your pads are gone. It's probably either a wiring problem, your ABS module, or a speed sensor(s). Just had my rear brakes completely redone and front brakes are very nice pass inspection without a problem so. I would suggest having your speed sensors and ABS pump checked
Leaded fuel was used where unleaded was called for An oxygen sensor is not reading (functioning) properly The engine coolant temperature sensor is not working properly Damaged or leaking exhaust manifold / catalytic converter / exhaust pipe Retarded spark timing The oxygen sensors in front and behind the converter are reporting too similar of readings All possible causes of a P0420 code. Run diagnostics yet? Is 0420 the only TC showing? If there's another code in the system then that's a big piece to your puzzle. It should help narrow it down. If not .. I'd go have a professional look at it.
I'm not a professional, so don't take my word for it, but honestly it sounds like your fuel pump and/or injector is garbage .. Have a shop close by run OBDII on it and see if they can't pull a code that gives you at least a good idea of what the problem is. I bring my pocket OBDII everywhere - it doesn't give you exact answers to your problems, but it at least gives you a good idea of where to start. Hope this helped :)
Ok. So first my TC read 0136 which is B1S2 oxygen sensor, along with some other code which I can't remember that had a definition of "Limp Home Valve - Low RPM". I replaced B1S2 sensor, cleared CE light, was fine all day yesterday. This morning, CE light comes back on, 0136 TC is back, and accompanied by a new code - 0350. The definition for this code is Ignition Coil Primary/Secondary Circuit Malfunction. What the %@$*& is my problem now?? I love this car, don't get me wrong, it's only got 75k on it and it's in beautiful shape. I'm just frustrated because I only have another week left to make my CE light go away so I can get a regular inspection sticker instead of a clear sticker. My sticker is expired on 5/1. If you can give me the closest possible problem and the easiest way to find it that would be wonderful .. as we speak, I'm moving my center ignition coil that powers cylinders 2 & 5 with my right ignition coil that powers cylinders 1 & 4 .. I was told if the code changes to something more specific then I know that it's a coil pack, and if it stays the same then it's got to be a spark plug or some kind of misfire sensor I have in this vehicle going bad. Crossing my fingers for coil pack, it's the cheapest fix ..
I'm going to be changing the B1S2 sensor in my car, and I already have the part and know exactly where it is - what I don't know is if I have to have a specific torque or anything? Can't find much info on changing it anywhere online, went through alldata and had nothing specified so. Not sure where to go from here, but would like to know before I change it so I don't ruin it..