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Old Sep 2, 2010, 03:21 PM
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Oil Pressure Switch

I'm having problems with my oil pressure light flickering. Since the switch is cheap, I want to try that first, but I havent been able to find any threads on where this switch is located? Anybody know of any? Or know of where this switch is located?
Old Sep 2, 2010, 03:21 PM
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Evo ix BTW
Old Sep 2, 2010, 05:23 PM
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If memory serves. That one is on the back of the block, below the intake manifold -- impossible to get to without really long arms or hours of wrenching.

d

EDIT: maybe I'm on crack. I thought it was right next to the knock sensor, but now I can't find it...
EDIT2: I'm almost positive it's back there. I remember replacing the blade connector on it. I'm still looking through the service manual.

Last edited by donour; Sep 2, 2010 at 05:34 PM.
Old Sep 2, 2010, 05:37 PM
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unfortunately, it's impossible to get to back there, without knowing exactly what you're going for.
Old Sep 2, 2010, 05:39 PM
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*whew* I thought I was going crazy.

d

EDIT: This figure is for the Evo 8 only.
Attached Thumbnails Oil Pressure Switch-screen-shot-2010-09-02-6.37.24-pm.png  

Last edited by donour; Sep 5, 2010 at 01:36 PM.
Old Sep 2, 2010, 06:18 PM
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You're the man! Thank You!
Old Sep 4, 2010, 09:56 AM
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wow. I cannot find this piece on the car. The picture shows it being towards drivers side right? I removed the upper intercooler pipe, but I couldn't find this.
Old Sep 4, 2010, 11:16 AM
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Deff back there. get a light and look for it. It will have a single wire attached to it. kind of circle shaped.
Old Sep 4, 2010, 12:03 PM
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If you are talking about the 'idiot light' sensor - it is near the oil filter...
Old Sep 4, 2010, 12:05 PM
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Originally Posted by cij911
If you are talking about the 'idiot light' sensor - it is near the oil filter...

no its not. its nowhere even close.

peer down between #3-4 runners on your intake manifold. there is a little goldish sensor with a one wire clip connector. that is the culprit. 27mm deep socket is required, you can get the replacement part at Napa.

Bren
Old Sep 4, 2010, 04:06 PM
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Originally Posted by brenner
no its not. its nowhere even close.

peer down between #3-4 runners on your intake manifold. there is a little goldish sensor with a one wire clip connector. that is the culprit. 27mm deep socket is required, you can get the replacement part at Napa.

Bren
Ummmm sorry but I respectfully disagree....I have no idea what you are looking at, but I'm going to guess it is the knock sensor. The oil pressure light aka 'idiot light' sensor is near the oil filter and commonly triggered when people install aftermarket oil pressure sending units.

If you read the attached, you'll see the sender and see that I am right ..

http://store.forcedperformance.net/m...vo_Oil_Install

Oh and yes I have tested the sender before and can verify that Robert (FP) and the Mitsubishi shop manual are correct ...

If you are referring to this : https://www.evolutionm.net/forums/ev...-location.html

that is the knock sensor....

Last edited by cij911; Sep 4, 2010 at 04:25 PM.
Old Sep 4, 2010, 04:36 PM
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Originally Posted by cij911
Ummmm sorry but I respectfully disagree....I have no idea what you are looking at, but I'm going to guess it is the knock sensor. The oil pressure light aka 'idiot light' sensor is near the oil filter and commonly triggered when people install aftermarket oil pressure sending units.

If you read the attached, you'll see the sender and see that I am right ..

http://store.forcedperformance.net/m...vo_Oil_Install

Oh and yes I have tested the sender before and can verify that Robert (FP) and the Mitsubishi shop manual are correct ...

If you are referring to this : https://www.evolutionm.net/forums/ev...-location.html

that is the knock sensor....
OK......I can see the part there installed on the oil pan? Right? Now I'm really confused. So this is a drain plug replacement? I have done a oil change on my car, there's just a regular plug there, with no sensor clip. Wouldn't my light not work at all?
Old Sep 4, 2010, 04:50 PM
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sorry. we agree to disagree.

this is the sender i was talking about, and replaced.

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please refer to this thread for the same problem the OP is posting about. i had the same issue, replaced the idiot light switch and it is fixed.

https://www.evolutionm.net/forums/ev...d-problem.html

Bren

another thread to back this up https://www.evolutionm.net/forums/ev...-location.html

Last edited by brenner; Sep 4, 2010 at 04:56 PM.
Old Sep 4, 2010, 05:05 PM
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Brenner - I have never replaced that sending unit, I would start with the lower as it is easier to get to....
Old Sep 4, 2010, 05:12 PM
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its super easy, and the correct one to swap in this case.

reach your left hand down behind the IM, put the 27mm deep on the unit, put the ratchet on, crack it, take it out by hand. new one comes with red locktite on it so it wont leak, done in 5 mins, without jacking up the car.

just make sure its cool and you are good to go. part is less than $15

hope it helps!!! and cij911 its all good buddy, im just certain in this case cause i did it month ago myself for exactly the same issue. cheers

b


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