What do these codes mean?

[ohio420jb]

96 f150 302, will crank but not start, replaced cps, and got it put on a machine and these are what it gave, now I need somebody to tell what to replace
the CPS (crankshaft position sensor)
P0320 ion/dist engine speed fault
P1351 IDM input fault
P0411 SAI incorrect
P1443 evap purge
P0401 egr insufficient

[Paul Masley]

P0320 is the crankshaft sensor on the front of the block. Possible dirty or oil fouled.
P1351 Ignition Diagnostic Monitor circuit Input fault
P0411, Secondary Air Injection System Flow Improper
P1443, Evaporative Emission Control System -
Vacuum System - Purge Control Solenoid or Purge Control Valve fault
P0401, Insufficient EGR Flow

From these codes, the first thing I would replace is the vacumm modulator located on the front of the throttle body. It will have two hoses and a two wire clip. It is a pain in the butt to get to. I would then take the EGR valve off, clean it, blow out the tube to the head. Before the start attempt, leave the battery disconnected for at least 30 minutes to clear the codes. Then test for codes. Then try to start.

With the failure codes that you have, also look for a damaged wiring harness on the right side of the block. There is a harness that runs from the crank sensor, up under the alternator and across the right calve cover. It may be pinched between the alternator and cover. This will short out the crank sensor and the complete EGR system.