Low Oil Pressure Warning Light flickering? - Team Integra Forums - Team Integra
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post #1 of 24 (permalink) Old 05-19-2019, 09:29 PM Thread Starter
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Low Oil Pressure Warning Light flickering?

Update: 1990 Integra

110k mileage. Auto. Sedan

I have been driving it about a month ago and would have done like 70 miles. About 70 miles ago I changed the engine oil. Lately it is raining in California. All of a sudden, within about 0.5mile of driving, Low Oil Pressure Warning Light came on and flickering.



All the fluid level is more than max level. Firestone might have put 5qt.


What should I do? Is it safe to drive?

Last edited by sciconf; 05-23-2019 at 10:11 AM.
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post #2 of 24 (permalink) Old 05-20-2019, 09:19 AM
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If you are getting a low pressure oil light i personally won't drive it until you've verified if it's a fault sender for the gauge or legitimate low pressure oil.

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post #3 of 24 (permalink) Old 05-22-2019, 10:15 PM Thread Starter
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If you are getting a low pressure oil light i personally won't drive it until you've verified if it's a fault sender for the gauge or legitimate low pressure oil.

Where is the oil pressure sender in this car?
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post #4 of 24 (permalink) Old 05-22-2019, 10:22 PM Thread Starter
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If you are getting a low pressure oil light i personally won't drive it until you've verified if it's a fault sender for the gauge or legitimate low pressure oil.

What oil grade is used for this car?
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post #5 of 24 (permalink) Old 05-23-2019, 09:14 AM
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Originally Posted by sciconf View Post
Where is the oil pressure sender in this car?
I'm taking a lot of wild swings at this but I'm assuming you have a late 80's early 90's integra with the b18a1 if that's the case it should be right next to the oil filter


oil grade should be 5w30 based on that same assumption which is pretty common across the generations based on what i found.
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post #6 of 24 (permalink) Old 05-23-2019, 10:12 AM Thread Starter
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1990 Integra
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post #7 of 24 (permalink) Old 05-23-2019, 10:36 AM Thread Starter
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Does this have OBD?


I have had check engine light intermittently came on after about 1.2 miles of driving.


I will try and reduce the engine oil level and bring it to the max level.
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post #8 of 24 (permalink) Old 05-23-2019, 10:48 AM
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your's should be an OBD-0 if nothings been changed/swapped. If you're going that far you might just do a full oil change, I'm not aware of a way to siphen some of the oil out without completely draining the oil pan or without making a massive mess :P
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post #9 of 24 (permalink) Old 05-23-2019, 11:21 AM Thread Starter
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Originally Posted by Absolute_Yeti View Post
your's should be an OBD-0 if nothings been changed/swapped. If you're going that far you might just do a full oil change, I'm not aware of a way to siphen some of the oil out without completely draining the oil pan or without making a massive mess :P

I was thinking of loosening the oil pan bolt and let it drain a bit in a pan.


The oil change is 100mile old - should I still change the oil/filter?
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post #10 of 24 (permalink) Old 05-23-2019, 11:39 AM
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Hard to say, For me I have a mechanical oil pressure tester tool that i would just plug in and test that way for issues. The Haynes manual unfortunately doesn't give a Ohm reading for testing the resistance on the sensor to see if there is any issues.

Assuming you don't have the oil pressure tester tool . My next steps would be:
1. drain some oil and bring it back to max (as you mentioned)
2. Full oil change with new oil and filter (after running Seafoam through the engine) (warning this can cause old leaking/grimey seals to possibly leak worse)
3. take the car to someone that has the oil pressure tester tool to get an actual reading

Depending on how that stuff goes, I would start looking at things like the oil pump and rod bearings (getting into full rebuild) Definitively don't keep driving on it if the engine fails the above 3 steps or the engine could be irreparable.
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post #11 of 24 (permalink) Old 05-25-2019, 08:40 PM Thread Starter
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Thanks


Which is the right oil pressure sender?

https://www.rockauto.com/en/catalog/...+/+switch,4588


Had the car towed and re-did the oil/filter.
M/c demonstrated to me that even with 3qts of oil the “engine oil light” came on (its very dull though).
He put 4 qts and the (dull) “engine oil light” was on. As I drove home 3-4 miles, it disappeared. Then started the engine again it came on but disappears as I start to drive.
The light is not bright red as you see when you first turn the key (without the engine running).
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post #12 of 24 (permalink) Old 06-19-2019, 06:29 PM Thread Starter
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1) Did oil/filter change - prob didn't go away
2) Changed the pressure sender - initially prob didn't go away. But then it was gone for a few weeks (of course I don't drive a lot). It has been faint red light



Then today as I was driving it actually flashed with the right brightness. At the stop light, I turned off the engine. Then when I started the engine, it didn't do it again at all - it might have had a very faint flickering but that's all. But this time, it said seat belt was not worn! So I opened the door and closed - so the automatic belt moved and put it on top of me again. That fixed the seat belt light.


If this is a on/off light, why it flashes - is it designed to flash?

Last edited by sciconf; 06-20-2019 at 10:19 AM.
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post #13 of 24 (permalink) Old 06-20-2019, 06:28 AM
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Its an oil pressure sending unit. It detects pressure (not oil capacity). If the pressure is at a low threshold, it'll flicker, only because the pressure is "hovering" right around the point of the light illuminating.

It seems as though you have low oil pressure (which isn't good) more than likely by a worn journal bearing. However, oil pumps have been known to go bad. Oil pumps typically either work, or fail. There's usually no in between.





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post #14 of 24 (permalink) Old 06-20-2019, 10:24 AM Thread Starter
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Originally Posted by jjkz24 View Post
Its an oil pressure sending unit. It detects pressure (not oil capacity). If the pressure is at a low threshold, it'll flicker, only because the pressure is "hovering" right around the point of the light illuminating.

It seems as though you have low oil pressure (which isn't good) more than likely by a worn journal bearing. However, oil pumps have been known to go bad. Oil pumps typically either work, or fail. There's usually no in between.

So you are ruling out oil pump because there is no solid red light?


There are two other threads on this gen2 with similar issues:
https://www.team-integra.net/forum/1...g-dimming.html
https://www.team-integra.net/forum/1...-flashing.html


Could it be ICU?
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