get ur coolin temp sensor checked it should work and the light will stop coming on
Drive it for a few days and log some miles on it and the check engine light may go out. Mine used to set a check engine light on really hot days here in the desert. I was told then engine and the computer have to go thru x amoutn of cycles and if the problem doesn't show up during those cycles, the check engine light will turn off. Enevtually the light came on to stay and my problem turned out to be a weak fuel pump.
Check your temperature gauge. If it shows the engine is running in the normal range then there could be a problem with the "air door" that controls how much air is brought in through the heater core. Or the core itself is plugged and needs to be flushed out. If the guage shows the engine is running cold , then you should have the thermostat replaced.
I just bought a 2001 s500. The person I bought it from told me that if I let the gas get too low or did not tighten the gas cap properly, the "check engine" light would come on. Well, about two weeks after I purchased the vehicle I let the gas get a little low and sure enough the "check engine" light came on. I filled it up with gas and the "check engine" light stayed on. I got worried. Finally after two days of being on it just went out by itself. Has not come back on since.
Basically if the check engine light goes off it means the fault is not permanent and not consistent. The fault came and after so many cycles the PCM said there's a problem and it lit up the check engine lite. After so many cycles of the fault correcting itself the PCM then stopped the light from being on. Nevertheless the PCM always usually records this fault in its history of faults for retrieval later on via a scanner == I have heard that sometimes if the gas cap is not on tightly, or the door to the gas cap is not completely closed, that the check engine light may come on. Perhaps it settles after a few days after going over a few bumps.
The most common cause is that the gas cap is not seating properly. If your gas cap is loose, re-seat it and wait two days to see if the light goes off, if it does not, see below.... There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
The Check Engine Light has come on because the computer has detected a problem with the emissions system. It has nothing to do with the coolant. Take it to a trusted professional and he will scan the computer with an OBD2 scan tool. He will use the fault code as a guide to determine what the problem is. also if you had recently messed with the engine as in unplug something and turned the car on the the light will be on for a few days but eventully turn off
I hve a 1998 Honda Civic LX and the check engine light would come on for a few days or longer, and then go off. I have had a mechanic check it out and each time it was the oxygen sensors. I have replaced them 3 times over the last 5 years. Each time I used the cheapest ones I could buy, and that's probably why they did not last long. Now I am using Denso brand and the problem is fixed.AnswerGo to auto zone and find out for free.
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