code 13 baro sensor [atmospheric pressure} been poping up lately, 3 times for the last two weeks, after the turbo install, i didn't remember messing with any sensor other then the i.a.t., anyone know where i should start checking,

 

The barometric pressure switch is built into the ECU, so i'm not sure why you would be getting a code.... What car/ECU are running...

 

99si ecu in 99si with greddy blue box

 

Are you running bigger than stock injectors? If not, try swapping ECU for another one and see if you get the same code.

 

yea, i am running 440cc rc inj. the greddy blue box doesn't control, i been running it hella rich for 2 weeks now, waiting on for a hondata, can that be the problem

 

The injectors are causing the code. I saw another post on HT about the same problem. Apparently, running big injectors causes the ECU to think that there is a problem with the baro sensor. Once you get Hondata , you should be able to tune the mixture and eliminate the code.