Oil pressure low, oil light comes on and off......
 

So I got off my ass to finally try and take care of this...
Car is a 92 Integra, b16a swap.
Check the pan, no dents, took it off, pick up is clean no dirts and no bends or anything, looks good.
Oil was a little on the dark side, changed the oil, but I was too lazy to go get a filter, why because I'm stupid.
Installed a new oil pressure switch and an Oil Pressure Gauge...Start the car, its cold so it jumps to 1500-2000 rpms, yeah I got to fix that, and the gauge reads 60psi..... I drive it around the light again comes on and off.
Go back home...at idle 750rpms...the gauge reads 20psi....I left the gauge in the engine, its mechanic, I didn't want a line to break and fill the car with oil, but I probably should do it to see what happens when the light comes on.

Questions?
I've been looking everywhere and can't find it, even in the shop manuals, maybe I'm just stupid, but
1). What is the oil pressure supposed to be?

I also read on a thread that the filter could be clogged and cause the intermitent problem....
2.) Any truth to this?....I will go ahead and change the filter ASAP to see what happens....

If everything fails after this, I'm guessing it'll be the pump, but I was hoping it was a quick easy fix. Hopefully the filter is the problem.

Thanks for the help....I tried searching and all it kept coming back with was turbo oil pressure issues...

Re: Oil pressure low, oil light comes on and off......
 

thats odd...you should be fine with 20 psi

Re: Oil pressure low, oil light comes on and off......
 

It is weird, it sometimes works fine, or seems to be running fine, then the light comes on, but its not like it lights solid, its just faint.
I wonder if the gauge cluster could be f'ing up.....I think it's just a light bulb, nothing big, but who knows..

I'm going to try the oil filter...hopefully that's it...
I just wasted money on oil, have to find a way to reuse the one I just put in :P....without getting it dirty.

Re: Oil pressure low, oil light comes on and off......
 

when my h22 is cold it reads about 80-90 psi when it warms up at around 3000rpm it reads about 60 psi and when its warm at idle its about 20-30 psi

Re: Oil pressure low, oil light comes on and off......
 

So my pressure is good at idle, I'm still hoping it is a clogged old oil filter, I never changed it its the one that came on the engine, who knows how long it's been on.

If not, can the pump malfunction like that, or is it a either works or doesn't thing.

Re: Oil pressure low, oil light comes on and off......
 

Seeing how the pump is mechanical you would think that it's either all or nothing. I'd say that your pump is fine.

Re: Oil pressure low, oil light comes on and off......
 

That's what I'm thinking that the pump either works or it doesn't, but I'm not an expert and this hasn't happen to me before. No biggie, I'll get a new filter in probably tomorrow, and see what happens.

I'm hoping that's all, the car's been sitting for too long, it would kinda suck if in the end it was just a clogged oil filter, how dumb will I feel, but then again is the cheapest solution.

I should have just check this before, but I'm busy. :-\ :-\.

Re: Oil pressure low, oil light comes on and off......
 

possibly a bad oil pressure sensor?? didnt read much so i dont know if you changed it :P

Re: Oil pressure low, oil light comes on and off......
 

I did :-* :-* :-*

Re: Oil pressure low, oil light comes on and off......
 

give me a freakin break. i dont read much :D. If thats the case, id say your oil pump is on its way out. :6

Re: Oil pressure low, oil light comes on and off......
 

is there a chance the wiring is loose. i'd assume because it's a single wire hookup that it just connects ground when pressure drops.

in that case check the wiring for breaks, if it shorts to the body or block the light may come on.

Re: Oil pressure low, oil light comes on and off......
 

Well I feel stupid, people change your oil filters when you get a swap in. I thought, wll this guy was driving the car so the filter should be ok...nah wrong!!! The filter was full of ----, literally, weighted like 5 pounds and that was empty, no oil in it, just random garbage. New filter in, drove it out....Perfect so far.....

So I guess sometimes it's the simplest thing, when you are ready to bust out the tools and change the oil pump, check your filter and pressure sensor before anything else.

I'm glad I got this figured out, now I can spend my money on internals for this thing. :8 :y

Re: Oil pressure low, oil light comes on and off......
 

better hope the bearings/cams/etc are alright if it actually was running on low pressure

Re: Oil pressure low, oil light comes on and off......
 

i'm having a similar problem...faint oil light going on only when i go into neutral. as far as i know there should be plenty of oil but it will go on for a few seconds and flicker out.

Re: Oil pressure low, oil light comes on and off......
 

having plenty of oil and having plenty of oil pressure are two different things

Re: Oil pressure low, oil light comes on and off......
 

I'm hoping there was no damage, I drove the car maybe 3 miles so far after the swap. If there was any damage it came from the previous owner. I'm planning a quick rebuild, so I'll be checking some things as I go. We will see soon.

Re: Oil pressure low, oil light comes on and off......
 

when mine done this, it turnedout to be the main bearings were bad.