sevenfc

well i had my car running for awhile now and iv had no problems crossing vtec over till last nite...i hit vtec and after that my check engine went on and notice my vtec wouldnt crossover...so i did the procedure for check engine lights and got code 22 vtec pressure valve...how can i fix this?...do i have to change the whole silinoid or could it be wiring...i need help

raidacaipo

jdm motor? usdm motor? what ecu are you using? jdm or usdm ecu?

JSPECSIR

that should be the vtec oil pressure switch not the solenoid.

Former User

Yep. First check whether your engine oil is low.

iamthefollower

that's what i was about to say too lol.. if your oil level is low then it doesn't have enough pressure to have vtec kick in.

sevenfc

im running an lsvtec with p28 ecu with an lsv basemap...it just went on when i recently hit vtec...as for oil i just changed it and my oil level is good...

Former User

Did you just now verify that the oil level is full? Otherwise, measure the oil pressure.

sevenfc

well honostly after i did change my oil it was good but i didnt really add extra for the vtec oil line or whatever and then after i did hit vtec it went on...and then i added some oil...yah kinda idiotic but thats y im asking for help...how would i measure oil pressure...do u think its wiring or my solenoid went out?

Former User

So now you have topped off the oil, right? The next step is to clear the code from the ECU and go drive the car again. Maybe the code won't return.

iamthefollower

good idea

GSaura

Sounds like a wiring issue to me. Lacking the 30 mL of oil that fills the LSV line won't be enough to prevent vtec engagement. Trace the wiring from the solenoid to the ECU. See what you come up with. Clearing the code is at best a bandaid.

sevenfc

k so i went to reset the ecu, and its still the same...oil level is good..

Former User

Depends on how low the oil may have been when VTEC engaged. If the oil level was fine, then I agree with your recommendation. If the oil level happened to be substantially low, then it would be wise to top it off, clear the code, and go for a test drive.

Edit: So I see the oil level is fine and the code is still thrown. You can test the circuit and measure the oil pressure as detailed in the service manual.

sevenfc

so hitting vtec could cause my circuit to get all screwed up...and with a multimeter do i test in ohms or in volts...black tip to ground and red tip to the pin correct? and another thing do i check from the obd2 plug where my vtec wires were wired in since i have the conversion harness to obd1

sevenfc

....

raidacaipo

How long did you drive the car for before the code 22 came on? did it just happen when you did a swap?

sevenfc

my motor was rebuilt but iv been driving it for almost 5 months now without that code and my vtec was working till couple days ago when it came on...so rite now iv just been driving it without vtec...which sucks haha

raidacaipo

could be a loose wiring.. check that first.. if you still cant figure out the problem then just bypass it.. its easy and alot of people do it including me. Mainly for jdm motors because they dont come with vtec pressure switches

sevenfc

how do u bypass it and whats the catch in the long run doing this...is it bad or is it normal..

raidacaipo

Here you go sweety.
http://www.phearable.net/tech/wiring/vtpsbypass.gif

Theres nothing wrong with running your setup like this. Ive been doing this for 4 years and no problems!

sevenfc

thanks will check my wires n fix it first then ill do it this way...

nuts91civic

nuts91civic

I have the same code 22. Let me know if bypassing the vtec pressure switch makes your vtec kick in. Ive had this code for a couple months now.

raidacaipo

do it.. it will work but first thing you need to make sure is that you have proper engine oil filled up and make sure there isnt any other problems before you go and do this..

iamthefollower

yeah, i have a jdm obd2 b16 that i did the bypass with, it works very well.