Toyota Repair: rough start and idle, head gasket, sulfur smell

Question
QUESTION: my 1994 toyota four wheel drive pick up just started cranking rough. the idle is also a litle rough you can fell it miss. i changed the plugs the wires and rotor we also reset the timming. it is running a little better. it seem to do worse when it is cold. thanks kenneth

ANSWER: Do you have the 22R-E (4 CYL)engine? Is there any smoke or steam coming from the tail pipe?

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QUESTION: yes i have a 22r-e 4cyl engine. it has started smoking. but i haven't seen any steam. would you please give me some ideas how to find the problem. thanks.

Answer
Your problem could mock several different conditions. Since you told me about the items that you replaced, maybe you have a broken head gasket. If this is so, you will see white smoke or steam coming from the tail pipe that will most likely smell like a sulfur smell. Remove the spark plugs again and look for wetness in the cylinders or on the spark plug itself.