ZooKs

Alright, so, Vtec hasn't been running, did some research, code 1259 popped up saying it was either vtec oil pressure switch or vtec solenoid valve, so dled the helms manual and have done all the diagnostics test in order, all have passed, the solenoid valve and switch both passed multimeter readings along with their connectors, took solenoid off and replaced both gaskets and checked plunger for no binding and smooth pumping. Next step in the process was to hook up a oil pressure gauge, not the actual sensor sending under under the car by the oil filter, but right under the distributor to the right underneath the valve cover, when I hook the oil gauge there, there is absolutely no oil pressure, can start engine and rev to 5000 not a drop comes out, stuck a magnet into the hole and its perfectly clear but no oil pressure what so ever, T didn't attach gauge to bottom switch because the car runs fine and makes no clicking sounds so im assuming its running with normal pressure, it's just not sending enough pressure to the vtec solenoid which is causing it not to engage.



So if anyone has any experience or know how on this matter, it would greatly be appreciated.

Car is 1997 base lude, M/T, No mods, oil level is about 1 quart low atm, 100k miles, no other cels, runs fine, just irritates me vtec isn't running, and ya rev limiter kicks in around 6.5k

pIERCE

You need to insure that oil is getting to your top end. Dude, if you have no oil pressure getting to your valvetrain, you valvetrain is going to be very quickly--or might already be--completely screwed.

But aside from that, have you tried taking the solenoid off and cleaning the screen? That's usually the first thing to do.

ZooKs

How do i go about insuring this? I little no automotive mechanic experience, especially dealing with oil pressure. I've done all the repair books step by step diagnostics instructions on troubleshooting the VTEC Malfunction issue, the only thing that hasnt passed yet is the oil pressure section, and i have no idea why, the solenoid has been taken off already, screen replaced, plunger moves smoothly with no binds, both the solenoid valve and pressure switch pass the multimeter readings

pIERCE

Honestly, I don't really know.

Except for the hard way. Which is taking off the valve cover and turning the engine on. If you see oil squirting and splattering up from places....you have oil flow. If not, then your valve train was probably already ****ed.

The problem is, even if you see oil flow, it's not very possible to tell if it's sufficient.

Sorry for the useless help, just thought I'd throw it out there.

Lude Acts

Maybe your oil pump is dead......

__________________

The Japanese have a saying......"The nail that sticks out gets hammered."

ZooKs

oil pump is good and i have adequate oil pressure coming from the bottom of the block, just no oil pressure up top next to the vtec solenoid, so i guess when i get a lil spare cash ill try replacing the solenoid and if that dont cut it then ill undo valve cover and look for any cloggage