sr starting problems

[s13400hp]

I have an sr that's not starting. I was driving one day and all of a sudden there was smoke coming out of the exhaust and the gas gauge was dropping fast and when pressed gas had extreme hesitatation. Head off everything looks fantastic, now I am on to the the fuel system and ignition system. How can I check injectors working properly and how can I check that correct spark is getting through system. Also can a blown turbo cause these problems? Please help thank you

[jamben]

i know for spark you can pull them out and keep them pluged in and touch it to metal and if a spark comes out your good as far as that goes i am not to sure about the other stuff sorry i hope this is kinda what your lookin for