ok guys im completly stumped on this one. I have NO CLUE.. I have a full tank of 93 octane gas a new alternator all the grounds are good. I dont understand why my Vtec is still not working the solenoid is good but i dont know about the poressure switch. It shows continuety but i just think that the motor i bought from Hmotorsonline has low oil pressure. Im gonna put a gaudge on iut tonight and get some reradings. I have a JDM motor any other suggestions??

 

Please Help!!!!!!!!!!

 

You are going to have to check the continuity from the ECU to the VTEC pressure switch and VTEC solenoid.

VTEC uses the following sensors:
ECT - engine cannot be cold
RPM
VSS - Vehicle speed sensor
MAP - pressure (engine load)

Make sure the car is warm before u try VTEC.

Do you have another VTEC pressure switch avail to swap in and try?

I highly doubt your motor has low oil pressure.

 

Ok all sensors are good i know i have to wait untill the car is in closed loop. But i dont have any spare or anyone willing to help me out with that switch. I dont know im gonna try a fewmore things im getting really frustraited.

 

Has anyone ever heard of a TSB on the filter screens on the solenoid and Vtec assembly??

 

no one???

 

fixed my vtec.. i pulled up a diagram on all the senors that are tied into each other and swaped out a few things

 

what did you tie into and swap out?

 

just found out that my car has now oil pressure, wondering if the oil pump not getting enough oil from the oil pan could cause this problem?

 

i changed out all the senors that control vtec and made sure they were wired right. vss was on the fritz...problem gone