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If the check engine light came on because of a faulty oxygen sensor what could happen if you do not replace it and how costly would it be?
You could lose fuel miliage for one, if it is causing a rich condition. That would also add to the chance of fuel getting into the oil or starting to damage the converter. It could cause a lean conditon as well that could lead to pinging and possible head gasket failure. Hard to say how quick or how bad. Costs can be all over the board. Usually it isn't a big job.
Had this problem on my son's '97 GMC 350, before and after an engine overhaul. (overhaul was not result of oxy sensor failure)
It has four sensors on a "dual exhaust" system. Advance auto parts read the codes and identified the culprit for free, although they warned that the possibility of a malfunctioning converter was NOT ruled out! Resetting the code put the light out...for a few days. The first sensor was replaced during over haul. Two weeks later the light was coming on again and it took some careful interpretation to notice it was the rear sensor on the OTHER bank. The first sensor was OEM @ $75, the second was Adv @ $50.
My 18 yr. old son lives out of state (NM) and I (in Ark)wanted to the on board diagnostics to be remain functional for his "first" vehicle. That was a year ago and all is working well.
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What else can I help you with?
Does a faulty turbo charger increases fuel consumption?
No it dosent but fix it ir replace because the air and fuel ration is the key to cumbustion and a faulty turbo is less air/oxygen to the fuel which means your engine wont properly burn the fuel which means you can mess up your engine bad
Can a faulty petrol cap cause engine to cut out?
Yes. Replace the cap. Why have your car sitting beside the road because you did not put the gas cap back on when you filled up?
What does the engine symbol mean on the dashboard?
That is most likely the Check Engine Light. In most usual cases, it's just a faulty sensor you need to replace. Any dealer of your brand of vehicle has code readers for these lights and could tell you what sensor is faulty. Beware, they can be costly though. Anything computer is. I believe you would not pass inspection if this was not fixed. Now if the Service Vehicle Soon light came on, stop driving it, you'd have a major issue that could kill the engine.
Why does my vw golf engine cut off when it gets warm?
engine coolant temperature sensor is faulty. engine coolant temperature sensor is faulty. engine coolant temperature sensor is faulty. engine coolant temperature sensor is faulty. engine coolant temperature sensor is faulty.
Would your engine overheat because of transmission?
No an overheating engine will be due to leaking coolant, a faulty radiator, a faulty water pump, lack of oil or oil that needs to be changed
Massey Ferguson 1035 equiped with a Toyosha 92ci engine the engine is faulty and hard to find what type of engine can you replace it with without major headaches?
Either another perkins or a ford
Why does a 1985 mercury marquis stall when shifted into gear with cold engine in cold weather but not in warm weather?
Faulty ECT (engine coolant temperature) sensor. Replace it.
Why does the check engine light blink on my Saturn l200 and the engine run rough?
because you have an engine misfire.most likely the DI cassette is faulty. (Ignition)
How do you solve check engine light cause by speed sensor?
Replace the faulty speed sensor and the light will reset itself after a short drive.
Why does the Audi engine stall?
An Audi engine typically stalls because it needs maintenance and repair. Sometimes, it is due to a faulty engine or simply because the car is put in a 'stop' position for too long.
Engine idles rough and nothing happens when you remove no1 spug plug wire?
either your plug or plug lead is faulty replace both
What would cause engine oil leak above starter?
It might happen because of a faulty starter gasket.
