Oil Pressure Sending Unit 420a Placment...?

My96 · 06-02-2003, 09:06 AM

like the title says is there such thing as an oil pressure sensor that would shut the car off if there wasn't enough oil pressure detected? something along the lines of a knock sensor???? i have a 96 n/t

siueclipse · 06-02-2003, 11:54 AM

it wont shut the car off, but an oil pressure sensor can be located on the back side of the block on the driver's side. its a green sensor.

James

kergilman · 06-22-2008, 02:50 PM

I am looking to place an oil pressure sending unit and temp sending unit in-line of the oil feed but cannot find a good place to put it aside from installing another brass T-fitting off the original oil sending unit. Anyone find better placment on the 420a block...?

Locke · 06-22-2008, 03:17 PM

Unless you want to install a sandwich adapter at the oil filter, your option is at the original oil sender. Use a cross fitting or manifold instead of multiple tee's to simplify plumbing and reduce the potential for leaks.

kergilman · 06-26-2008, 03:15 PM

I hate having options anyway....I now have a 3 brass-T connector conglomeration housing my turbo feed, orig sending unit, new pressure sending unit and temp sending unit...now waiting for leaks to spring up...

Jimbo26 · 07-26-2008, 03:56 PM

ok, so I just bought a 99 eclipse a lil bit ago...oil light came on, and stays on...just changed the oil last week, so Im thinking its the sending unit....where's it located at?

UrN2nd · 07-27-2008, 09:08 AM

back of the motor right in the middle of the block. from under the car, 8 inches to the left of the oil filter and up 3 inches cant miss it

dcshoeco1041 · 10-19-2008, 05:32 PM

how do you get the green clip off?????

rstare · 10-20-2008, 07:30 AM

As far as I remember its just a clip, push down on the green tab and pull....

bagged420a · 10-20-2008, 11:04 AM

It won't shut the car off, but you'll have an oil light come on

bagged420a · 10-20-2008, 11:09 AM

what is the best way to hook up an (electrical)oil pressure gauge? I have a glow shift gauge that is in but not hooked up. I've searched plenty and no one has a good install post for the 420a.

rstare · 10-20-2008, 11:58 AM

From under the car looking at the oil filter. Up and to the left of that you will see a gray plug, that's the knock sensor. To the left of that plug you will see a lime green plug, that is your oil pressure switch.
Unplug the green plug, then unscrew the 3/8" switch that goes into the block (you will need a wrench).

That is a picture if you are putting in a oil feed line too.
If you arn't putting a feed line in to then you don't need a tee. Just figure out the right adapters you need. The pressure sender is probably 1/8" npt. And the thread in the block is 3/8" npt.

Shadow98 · 10-20-2008, 12:25 PM

Quote:

Originally Posted by rstare

From under the car looking at the oil filter. Up and to the left of that you will see a gray plug, that's the knock sensor. To the left of that plug you will see a lime green plug, that is your oil pressure switch.
Unplug the green plug, then unscrew the 3/8" switch that goes into the block (you will need a wrench).

That is a picture if you are putting in a oil feed line too.
If you arn't putting a feed line in to then you don't need a tee. Just figure out the right adapters you need. The pressure sender is probably 1/8" npt. And the thread in the block is 3/8" npt.

So, in this picture you get rid of the stock oil pressure unit..? What do you hook up to your plug?!?!

rstare · 10-20-2008, 12:28 PM

Dcshoe; yea it should pull right off.
Shadow; yes that is actually Chris' picture, but I believe most people get rid of their stock switch.

david-b · 10-21-2008, 08:52 AM

Only way I was able to take mine off was by hitting it with a hammer and screw driver, breaking that bad boy. Oh well. As long as you have an oil pressure gauge and you check your oil, they'll be no problems.

rstare · 10-21-2008, 10:06 AM

I guess some are harder then others... mine took a little tug but wasn't that hard.
You can keep the stock oil pressure switch. (You just need a different adapter then the one pictured.) But, you don't necessarily need the stock dummy light once you get a actual pressure gauge.

Shadow98 · 10-23-2008, 08:24 AM

Quote:

Originally Posted by rstare

I guess some are harder then others... mine took a little tug but wasn't that hard.
You can keep the stock oil pressure switch. (You just need a different adapter then the one pictured.) But, you don't necessarily need the stock dummy light once you get a actual pressure gauge.

So, doing it this way wont give you a CEL?

rstare · 10-23-2008, 08:25 AM

Nope. The only "downfall" is that the dummy light won't ever come on.
(Except when you start the car of course...)

Shadow98 · 10-23-2008, 09:49 AM

I guess that means mine will be coming of. I do learn something once in awhile on here, lol.