ok so my car turns and cranks when trying to start it but doesnt start. i figured out that its not the fuel pump because i unattached the fuel line from the pump in the fuel tank. when trying to crank fuel pumps out. i can start my car from a rolling start by popping the clutch and the car runs fine. doesnt idle down or anything. could this be a bad crankshaft position sensor and if so wouldn't i get symptoms while actually driving the car?

 

Get the computer scanned for codes first and let us know what codes are stored.