crank but no start but it trys
when it cranks, sometimes it will not fire. sometimes it fires and the engine shakes violently. other times it seems like it will start but it doesn't. i thought it maybe fuel related. form may understanding, the way to check fuel pressure is to tee into the line at the fuel filter. i don't have a way to do that. i can hear the fuel pump running with the key turned to start and the clutch out. then i wondered if there is water in the fuel and it froze. its pretty cold outside. i poured some fuel dryer in but it didn't help. still if there is frozen water in the fuel line rather in the tank then i don't see how the fuel dryer can get to it.
also, i removed the oil cap and i can see a cam moving during cranking. i'm not sure if these cars have timing belts or chains.
i'm not a stranger to cars. i just don't know anything about these. plus its really cold outside and i'd rather not spend a lot of time doing diag.
thank you for any help and ideas