oil pressure sending unit....where? - Honda Prelude Forum

ludevtec · 10-07-2003, 09:04 AM

I just go tmy oil press gauge and was just wondering where a good place would be to put the press transmitter. Thanks for the help

BryanS · 10-07-2003, 10:36 AM

I hear there is a spot on the head that it can be mounted, but this is how I mounted mine.

I drained the oil and then removed the stock sender which is located just above the oil filter, iirc. I installed a hose barb and about 3 inches of hose (fuel line I believe). On the other end of the hose I installed a T fitting with the stock sender on one side and the aftermarket sender on the other side. I had to use a hose clamp to attach a ground wire to one of the senders so they would be grounded. I then wired the stock sender as it was originally and ran the wiring for the aftermarket sender per the instructions. I used a few zip ties to secure the senders and hose so they wouldn't flop around. I figured this might prevent some of the concerns I've heard about cracking a t fitting if it was threaded right into the block at the stock sender location. I check the hose and fittings whenever I change the oil and have had no problems in the year or so that it has been installed.

Dr. James · 10-07-2003, 05:26 PM

The stocker is located under the filter, just above the oil pan. Has a rubber boot around it. It's usually leaking some oil

Phamine · 10-08-2003, 12:09 PM

Quote:

Originally posted by Dr. James
The stocker is located under the filter, just above the oil pan. Has a rubber boot around it. It's usually leaking some oil

You mean here=]. Mine is leaking a little too - but it's from the stainless steel line connector=[

PDUNZ · 10-09-2003, 03:15 AM

If you have a VTEC it's better if it's placed in the head port, well thats where I have it so I know there is flow to the head and I get good pressure - 20psi at idle, 65-80 at 3000 depending on how hard I am driving it. It's alright in place of the stock sensor but that will just tell you right that you have pressure and flow at the pump.

I got a barb fitting, screwed it in the pressure port, ran a short length of fuel line to another barbed fitting which was screwed onto the sender, atatched the sensor wire to the guage and hoseclamped the sensor tot he body, which is hidden from view.

Whateva takes your fancy, It was just easier this way, you dont really need to drain your oil when removing the stock sensor, since oil cant really go up hill without help.

MR.CLIFFORD · 10-09-2003, 09:38 AM

Quote:

Originally posted by BryanS
I hear there is a spot on the head that it can be mounted, but this is how I mounted mine.

That spot by the distributor only works on VTEC heads.

ludevtec · 10-09-2003, 11:39 PM

Quote:

Originally posted by PDUNZ
If you have a VTEC it's better if it's placed in the head port, well thats where I have it so I know there is flow to the head and I get good pressure - 20psi at idle, 65-80 at 3000 depending on how hard I am driving it. It's alright in place of the stock sensor but that will just tell you right that you have pressure and flow at the pump.

I got a barb fitting, screwed it in the pressure port, ran a short length of fuel line to another barbed fitting which was screwed onto the sender, atatched the sensor wire to the guage and hoseclamped the sensor tot he body, which is hidden from view.

Whateva takes your fancy, It was just easier this way, you dont really need to drain your oil when removing the stock sensor, since oil cant really go up hill without help.

Do you mean the one on the passenger side. The onr all the ay in the back corner? Thanks

MR.CLIFFORD · 10-10-2003, 09:23 AM

Quote:

Originally posted by ludevtec
Do you mean the one on the passenger side. The onr all the ay in the back corner? Thanks

There are two 5mm Allen bolts stuck in the head on the passenger side under the distributor. I believe it is the one closest to the rear of the car. There are plenty of fittings that fit right in there.

ludevtec · 10-11-2003, 09:18 PM

thanks for the help guys!

PDUNZ · 10-14-2003, 11:27 PM

If you need I'll get a pic of the setup I have

ludevtec · 10-15-2003, 07:50 AM

that would be great!!!

prelude styl · 10-15-2003, 09:53 AM

so those 5mm allen plugs won't work for an H23? How come? When I was taking off my IM yesterday I saw those... so they are there.

PDUNZ · 10-16-2003, 12:19 AM

Photos Below.

prelude styl · 10-16-2003, 03:37 AM

right... and it won't work on my H23 because?

ludevtec · 10-16-2003, 05:20 AM

thanks alot. Those are great pics. I dont know if it would work on an h23. Just look at your head to see if there is an allen head plug on it!

MR.CLIFFORD · 10-16-2003, 06:48 AM

Quote:

Originally posted by ludevtec
thanks alot. Those are great pics. I dont know if it would work on an h23. Just look at your head to see if there is an allen head plug on it!

Those allen spots WILL NOT WORK on the H23 head. I have already tried it in both allen spots and neither worked! There just isn't oil pressure in that head spot like the H22.

ludevtec · 10-16-2003, 11:24 AM

yeah that makes alot of sense now thaqtI think about it

PDUNZ · 10-16-2003, 12:39 PM

Yea, this will only work on an H22 hence what I said in my first post -

Quote:

If you have a VTEC it's better if it's placed in the head port

invaderlude · 10-17-2003, 07:20 PM

I have a jdm h22 and i put a fitting in that spot and have about 6" steel-braided fuel line, and i am showing 0 oil pressure. the power and grounds are fine.

PDUNZ · 10-18-2003, 01:03 AM

My pics are also of a JDM h22, when I first installed it I got 40 psi and then 0, upone removing the line I found a bit of thread tap had blocked the sensor hole. Now it reads fine, 20psi at idle hot, 80 at 3000.