CEL: mixture too lean

Btener014

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My 2002 sunfire 2.2L OHV is having issues with the fuel air mixture,
I've replaced the MAP sensor and fuel regulator and deleted the code. About 25 miles later the problem started back up with surges and loss of power, engine rocking, black exhaust and horrible horrible odor. It's been just eating my gas to 14 mpg and I've had enough! Please help
 
do you have a check engine light on? do you have vacuum at the fuel pressure regulator hose and is it free of gasoline?
 
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