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1998 Toyota 4Runner - CEL and fumes

the check engine light came on then I started smelling exhaust fumes in the cabin real bad any ideas?

Yeah,

Find out what the codes are and post them here - the number P0123, please.

Drive with the windows open!

First it is very dangerous to drive this car with your description. You need to get your exhaust leak(s) fixed first. Then have the codes read. Some codes can be set by a leaking exhaust.