Ok I got myself a chipped p28, and it's throwing me a code 22 check engine light.
What is that all about??
fm what I found is:
22- VTEC pressure valve
Do 99-00 si have that?? is that the one that goes just below the vtec solenoid??

 

No, it's the other one on the Vtec (2 wire connector). I am getting the same code, usually it's a malfunction in the wiring (either at the ecu or at the connector). May also be a faulty pressure switch or worst case scenario it would be a bad ecu (doubtful).

 

I had that code when I hooked up my vafc. Apparently for US cars the vtm wire is supposed to splice into the vtm wire from the ecu. Mine would cut out at 5200 rpms, which is where vtec is supposed to kick in. Did you install a vafc?

*That may have been code 21, sorry, it was a while ago.*

 

weird thing is.. that with my stock P2T ecu.. I have no errors.. Just when I hook up the p28.
And yes I have VAFC.