im working on my brothers blazer. i have 0300 trouble code and some others. when you start the truck it lopes a little when idling. then when you go to take off it hesitates like it wants to shut off. after it warms up it drives ok. I have checked the plugs and wires they seem ok. the distributor cap looks like it may have a hairline crack by the number one plug wire on the inside of the cap. unsure. unpluged the maf sensor with little or no change to the idling. the other trouble codes were 0171 and 0410. I have already read the explanations for all of them. any help for where to begin would be appreciated.

 

what u have is multiple missfire, the plugs cap and rotor is a good place to start in fixing it, then reset, should work after doing this, if not ill help u further