2007 hyundai accent won't stay started? The check engine light came on and map sensor and coolant temp sensor were going bad. we replaced them now the car won't start. please help

SOURCE: 2001 hyundai elentra scanner said i have a bad cam sensor and map sensoer replaced both and the scanner is still reading the same code

The problem is in your steering wheel

SOURCE: 01 accent 1.5, has check engine light on, multiple

DIRTY FUEL INJECTORS -BAD COIL-PLUG WIRES AND PLUGS.MOST OF THE TIME CAUSE MULTIPLE MISFIRE..A BAD COOLANT SENSOR CAN CAUSE MISFIRE..

SOURCE: Replaced 0xygen sensor in 2003 Hyundai Accent 3 Times Not Fixed!

It sounds like you have either a lean or rich condition ocurring,could be exuast leak,vac leak,leaking fuel preasure regulator,cat convertor.At this point would go to dealer for diagnosis.

SOURCE: will coolant leak out removing the engine coolant temp sensor

lol.......Always be prepared......Yes more then likely it will. Have a very large drain pan under the radiator.

SOURCE: why is my 1998 hyundai accent overheating?

The head gasket has gone so pressure builds up in the cooling system and forces water out of the overflow

You need someone to take the head off , skim it and fit a new gasket

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