pigtail splice for oil sender (Page 1/1)
fredtoast JUN 22, 02:20 PM
I know this has been discussed a lot around here, but it seems like everytime I get into a thread it starts going in a lot of different directions.

if there is one simple thread that shows exactly what I need to do then just link me up.

I need to replace Oil sender in my '87 GT. Ordered online and got one for $9, but they sent me the wrong part.

I was at auto stores today picking up other stuff and the unit that looks like the one in my car cost $80-$90.

Apparently I can get another part that will work for half the price, but I have to alter the pigtail. I assume this is the same piece that guys here talk about the '88 unit. Does anyone know the part number for it?

Splicing wires seems simple enough. Is there a simple link to what I have to do?
sleek fiero JUN 22, 02:48 PM
From what I read you use the 88 sender and splice on the 88 plug which is used on a lot of newer GM vehicles. I got a new sender at my local auto parts store for 40 plus dollars and it was upgraded from my original in that it did not have the vent hole that always leaks and I didn't have to modify my harness. sleek
fredtoast JUN 22, 08:16 PM
I found this earlier, but it took me a while to figure out exactly what he meant.

Go to this link http://www.rockauto.com/cat...?pk=82454&cc=1028641

1991 Chevrolet Beretta 3.1 V6. AC Delco Part # PT121. That will tell you what the connector looks like. When you have the right connector, if you orient it the same as your original sender, you will have the right splicing pattern.

So, looking at the top of the original sending unit, the blades are like so: I _ I Take the new harness connector and orient it like this: * . * and take the corresponding wires and splice to the old harness.

As a temporary fix, I used spade connectors on the new harness and simply plugged them into the original harness connector without having to cut and splice the engine harness. It's been working fine for about a month.

The only confusion I have is that it looks like the connector in the picture only has two wires coming from it. Other brands of same item seem to have three. Am I missing something?

[This message has been edited by fredtoast (edited 06-22-2023).]

steve308 JUN 22, 09:30 PM
Oil pressure sensor for a guage upgrade to the 88 sensor....standard motor products PS245 ---pig tail for the conversion is..standard motor products s637.



Hope this helps
jelly2m8 JUN 23, 01:45 AM
or goto your local pick and pull, Gm used that oil pressure sensor connector right up into the late 2000's at least

[This message has been edited by jelly2m8 (edited 06-23-2023).]

fierofool JUN 23, 10:35 AM
This is my article in its entirety, partially quoted above. It was written in 2014 and the temporary spade terminal setup is still working today. I don't know why the Rock Auto image shows only two wires. It actually does have three.

It isn't absolutely necessary to use the brass street elbow. My first upright setup allowed water to get into the top of the sending unit, shorting it out. This could be remedied by applying a liberal amount of dielectric light bulb grease in the top of the sending unit.

http://www.gafiero.org/bbs/...42.msg39745#msg39745

[This message has been edited by fierofool (edited 06-23-2023).]

fredtoast JUN 23, 01:07 PM

quote
Originally posted by fierofool:

This is my article in its entirety, partially quoted above. It was written in 2014 and the temporary spade terminal setup is still working today. I don't know why the Rock Auto image shows only two wires. It actually does have three.

It isn't absolutely necessary to use the brass street elbow. My first upright setup allowed water to get into the top of the sending unit, shorting it out. This could be remedied by applying a liberal amount of dielectric light bulb grease in the top of the sending unit.

http://www.gafiero.org/bbs/...42.msg39745#msg39745





Thank you so much. Guess I just never find the right search terms to get that thread.
fierofool JUN 24, 11:39 AM
I went to our website where I originally posted it. www.gafiero.org I also have the article saved on my PC but felt it was too long to post in its entirety.
armos JUN 25, 04:46 AM
The 88 style sender from AC Delco is D1808A.
I had very low hot idle readings from BWD brand senders, often causing erroneous "OIL" light to illuminate (mechanical gauge confirmed it was incorrect).
The D1808A seems to have much better calibration, closer to the mechanical reading, although it's been a few years since last time I bought one. I have had to replace them every few years.
No experience with Standard.

[This message has been edited by armos (edited 06-25-2023).]