Which component are you using ? LP comp or CTB based comparator ? Or is it CSD comparaotor?
I used a sample program and added a comparator to it just to try it and it worked I am sending you the example as you have not given us your program to check.
When I put a Comparator component on the CY8C4146AZI-S433, PSoC Creator suggests P3 and P3 for the Comparator output pin as follows.
It seems that P3 and P3 are assigned to the dedicated comparator output as ctb_dsi_comp for two CTBms.
The reason why the PSoC Creator do not suggest any pins on CY8C4146LQI-S432 is the QFN32 package does not have both P3 and P3 pins.
I was looking for a description saying that P3 and P3 are assigned as dedicated Comparator outputs in the PSoC 4100S datasheet and the PSoC 4100S Technical Reference Manual (TRM) but I found no such descriptions. So, I would like to request to add some descriptions regarding the dedicated Comparator output pins.
I am sorry I sent you the wrong device so I am sending you the same program with the correct device.. One thing however the device you are using doesn't have a lot of digital resources and you may be running out of resources.