so it started happen like a week ago when i was driving and saw a gt3 on the freeway so started playing with it so i stepped on it and boost came in then we did another run and i couldnt go into boost for nothing! it'll just bang at 4k with 0 boost an vacuum so i pulled over and turn the car off and back on again and drove and step on it and boost came in and and the second time didnt so im so lost rightnow, i checked my oil and intercooler pipes and other stuff to see if it was boost leak and it wasnt if yall can help me it would be cool!
im on a custom manifold with a 35r and kpro!

 

Did you do " boost leak test ?" or just looked around? It sounds like boost leak.

 

so i plugged it up to my laptop to datalog and this code pop up

P1259 Vtec System Malfunction(Oil Pressure Switch)

 

do yall think my Oil Pressure Switch is messup?

 

Yes now fix it

 

check to see if its plugged in first! hahah

 

its plugged in!

 

probably bad pressure switch then. Kpro usually doesn't lie.

 

the gay thing is that ima have to take off my turbo and downpipe just to get to it

i saw that the TDC SENSOR will usually do the same thing too!

 

Is the VTEC oil pressure switch even used with the KPro? It's not used with the AEM EMS and you can remove it and plug the hole.