P0171 P0174 P0430

Hi

I have CEL on together with codes P0171, 174 and (sometimes) P0430.

Both catalytic converters are removed and O2 spacers inserted.

I use Torque app on my Android phone and ELM327 for scanning info.

My ling term fuel trims are 30+ on both banks.

My MAP is 25" at idle at 5000' elevation.

I am not sure if I have a vacuum leak or problems with the fuel pump. I live in Africa and the mechanics I've been to aren't the best and lack proper diagnostics tools.

Is my MAP normal for the elevation?

Thanks
Eric