96 chevy suburban remote start

I have installed a Clifford RS1.1 remote starter and now the truck will crank for about 4 seconds but not start. If I put the key to the "run" position, it starts with the remote, which according to Clifford should be incorrect ign wiring. All has been double  checked and correct. Here is how it is wired:

factory                                Clifford

red                                  2 red 12v input

pink                                pink ign out

white                             pink/white ign out

orng                              orng accy out

      Any suggestions?

Check the 1st and 2nd ignition OUTPUT during remote start from the clifford unit. The brain may be defective and not  be giving an output to one of the ignition wires.