2000 chevy will not start
 

i have a chevy impala 2000 3.8 ls car will not start replace the mass airflowsenor it sounds like it wants to i have fuel pressure i was told to check crank senor it this true help

so it cranks over but won't start.... or won't crankover??

what fuel pressure reading did you get?

Is the security telltale light on?