I keep gettin code 13 (barometric pressure) each morning when i start my car. Is there any way to get rid of this?
It is on a 99 civic si with 440 injectors and a vafc hack.

 

yeah i have the same problem on a 2000 ITR. Its bone stock. In the manual it says its a faulty ecu.

 

Try disconnecting the VAFC and see if the problem goes away.

Shitty wiring will cause problems.
Shitty = Splices, Taps, Buttconnecters, etc...
Good = Solder and Shrink Tubing

 

If you are getting the code and have a USDM ECU, usually it would mean the ecu needs to be replaced. With hondata it can be disabled. The P28 I have doesn't have a barometric pressure sensor(not USDM), so mine has to be disabled.