2001 dodge caracan remote start probs

hello, i've got a prob with this van, i've got the remote starter put in and it's running, even the neg input through a 180 ohm resistor. here's the prob, when the engine is warm the vehicle will start with the remote and work properly, let the engine sit for an hour and try and remote start it  and it will just crank. 

now ya know the prob, here's what i've done, double checked all the wires, replaced the resistors, all the wires are solder'd  and secure, i've tried both the blue/green and blue/orange tach wires ( it was the two suggested,  only way to get to the injector wire was to remove parts of the engine i didn't want to ) and i've even changed out the whole brain.  the unit i'm using is a command start 350i and the engine in the van is a 3.8 V-6. if anyone has and info that be great, i know i don't wanna see the van no more and i'm pretty sure the customer don't wanna see me anymore