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Re: check engine light stays on at all time seems to cut...
There is a fuel cutoff set by the cars computer that limits the RPM's of the engine to prevent engine damage. If its cutting out below say 5000 rpm, then theres a problem. The check engine light being on steady means one of the sensors detected something the computer doesnt like. Get the car to a good mechanic to scan the light and retrieve the trouble code. That will tell you what the problem is. Some auto parts stores, like Auto Zone, will scan the light for free.
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hot or cold engine , or both.?
the oil pressure will be in direct ratio to engine rpm. slow low, fast high
due to the oil pump connection to engine crankshaft.
stalls.: can be caused by 50 things, or just 4 in physics.
the EGR valve (if you have one, no engine stated)
can stick open and stall any engine, and in fact LOVES to. clean it.
1: list 12vdc to EFI. (spark and fuel brain) dash lights dim?
2: lost compression hot, ? compression tests.
3: lost spark, do spark tests. and timing, checks.
4: bad fueling, too much if floods, and misfires and stalls.
too little fuel, it starves and dies.
the 1 free test, is can you save the stall with a fast right foot.
we do the tests. avoiding those 50 guesses....
each tests are simple and the tools dirt cheap .
check whether you do have a smell of fuel or burnt gasket in the radiator after remove the cap. If so then you have an overheated engine and blown gasket. Or check whether if you have either water in engine oil or vice versa. Having any of the two,surely you have to remove cylinder head for renewing cylinder head gasket etc.
under dash connect together the 2 green multiplugs. The CEL light (Check Engine Light) will flash. Slow then fast. Count the slow flashes then the fast ones. I.E. code 21 will give 2 slow flashes then 1 fast = 21.
the check engine light may come on for several reasons. first in newer models the light is used because the fluid levels might be low. Another reason is that the ecm may have detected a fault in the sensor system because the parameters were exceeded. another reason is it could be that your fuel cap is not on tight enough. at this point it would hard for me to determine what the codes mean due to not having the manual for your vehicle. in the mean time my suggestion would be to have a full diagnostic done on the vehicle at a shop. some of those codes could be active and some might be stored and unless cleared they will remain and the light will stay on. considering your vehicle is running fine =I suspect that there not actually be a problem but the stored codes need to be reset in order for the light to go out... please rate this........thanks