Originally Posted by Red07SSNA

Good information. I prefer an electrical gauge over a mechanical gauge just because I don't want the oil coming into the passenger compartment in case of a leak.

Where you positioned the sending unit (in the cylinder head) you will read lower oil pressure than what is in the block. There is a restrictor orifice that reduces the oil pressure to the head. I originally installed my sending unit there too but it drove me crazy because the service manual states the oil pressure minimum is 50 PSI @ 1000RPM. I thought I had an oil problem until I found out about the restriction. I installed a remote sending unit using the Autometer adapter in the original factory sending unit position and a brass tube kit in order to read block pressure. I positioned my original sending unit in the cylinder head -- since it is just a "on-off" switch it is working there without a problem.

https://www.cobaltss.net/forums/general-cobalt-68/how-get-oil-pressure-gauge-work-almost-106584/

Originally Posted by jojot001

I had read about the restriction in the head , but I didn't want to move the stock sending unit in case I wanted to return the car back to stock. That's also why I didn't use power from the radio. I'm not to concerned with the pressure being lower because the restriction in the head because my main need for the gauge was for the ablity to check oil pressure drop or loss. After driving it for a few days, I found out the numbers in which my car operates and if they vary to much I know I have a problem.

Originally Posted by jojot001

My gauge uses it to remember which color I had my gauge set to last. It has 7 colors plus two coloring changing presets. The continuous power is only hooked up to a 3 amp fuse though so it isn't a huge deal.

Originally Posted by originaladrian

wht the hell, how do i get tht damn oil galley plug off, iv been trying for 2 hrs... those are tighter thn... well... ill let the guys tht have done this tell u... u guys couldnt have gotten them off with a simple allen key. how did u do it?

Originally Posted by Red07SSNA

They are definitely tight but I was able to get them off with a crescent wrench on the allen wrench. They are glued in with a thread locker.

Originally Posted by originaladrian

ahh im gona go crazy trying to get it off lol, im gona get some industrial hex bits for rachtets tmrw. i used to have some but ironicly lost the one i needed. and to top it off i have an allen key lost somewhere in my engine bay lol

Originally Posted by Red07SSNA

Spare metal items have a way of "finding" themselves at the least opportune time Get a powerful flashlight to look in the shadows...

Originally Posted by originaladrian

ya lol, ur right abt tht. i tried looking for a good amount of time. now, once i get tht damn thing off i think im going to do the same thing u did. but i have a mechanical oil gauge. tht stock sensor is a bitch to get to eh?

Originally Posted by Red07SSNA

Bad news...you just can't get to the original sending unit without taking off the intake manifold -- just no way to get a wrench on it. The good news is that you don't need to buy anything...all the seals are rubber and reusable. Just keep everything super clean. I can't find a special made tool that you can use to remove the oil sending unit without removing the intake manifold. If anyone knows of one please post it!

Originally Posted by originaladrian

i knew it!, i just didnt get around to it today becuase of the damn oil gally plug. you cant get it from under?

Originally Posted by Red07SSNA

I couldn't.

Originally Posted by originaladrian

ughhh, theres so many damn bolts on tht manifold. but whts the point of a gauge if its not accurate. so ill move the stock sensor to the oil galley im trying desperately to get to and install the oil pres tube to the stock location

Originally Posted by Red07SSNA

Really the manifold is a piece-of-cake. The biggest headache is the plastic wire loom holders. Look for all of them. Also there is a 10MM bolt holding the oil tube bracket to the manifold -- another "fun" and easy to get to location Are you using the plastic tubing?

Originally Posted by copson20

i do a long extension with an elbow and a 1 1/8 deep well socket. thats how i got mine off. and then went i put on my 2.4 manifold the sending unit wouldn't fit so i had to get a 45 degree elbow from autometer.

Originally Posted by XgunsmokeX

wtf?????what hole do i want to get a reading from the block????? pics

Originally Posted by XgunsmokeX

ohh **** that. i don't have the time or exp. to remove manifold. guess ill just use the other hole

Originally Posted by laylahg5

mind telling me where you found that gauge piller at? :O