Mechanics

HARD TO START

1994 Chevrolet S-10 • 4 cylinder 2WD Manual • 167,543 miles

I got a 1994 s10 2.2 it was runing fine but now hard to start it like geting to much fule or the chock is not opening and blowing out black smoke out the tailpipe it got a new plugs wires pvc gas filter when I do get it runing I give it some gas and it runes good but when I let off on it it like the chock is not opening up and when I drive it on the street or hiway it runs good
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Fredbryant
July 20, 2011.




There is a sensor called a map sensor that may be failing riching up the mixture. It would throw a code.
Also, make sure one of your injectors are not leaking fuel with out being commanded to open.

Roy

ASEMaster6371
Jul 20, 2011.


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