New engine start: oil pressure maxs out then bottms out

[Vegas Smith]

Hello, I'm starting my car for the first time (somewhat), and I noticed that the oil pressure gauge maxes out after a few seconds then continues to bottom out and the dummy light comes on. At that point I got scared and turned the car off. So this is about a 15 second span. I have hooked up the dummy light and the oil filter housing.

I have turned the car on a few times before this (twice) for about 1-2 minutes and at that time I was not looking at the gauges but looking for leaks.

What do you think would be the reason for this? Maybe the gauge or sender is not working correctly? Thanks for any help.

 

[Vegas Smith]

Anybody?

 

[Vegas Smith]

Balance shafts deleted. New oem oil pump.

 

[Kenny07]

Bad sensor, faulty wires, maybe? You really need to get an oil pressure gauge, the stock sensor is pretty much good for nothing.

If I'm not mistaken, when the two sensors are connected wrong or are grounded it will not function/stay at zero/or peg high. Correct me if I'm wrong though...

 

[Vegas Smith]

I hope you're right Kenny and thanks for the response.

 

[miliman13]

Most likely bad data .
Hook up another gauge.
Use those readings

 

[Vegas Smith]

I have an autometer that I'm going to hook up.

 

[pauleyman]

did you rotate the bearings in the front balance shaft?

 

[Vegas Smith]

Oil sender and dummy light wires were crossed....

 

[ceedawg]

Yes that is what happens! Ask mw how I know I have the wrong (low pressure lightwire) on my stock presure sensor and ita pegged, but I have an aftermarket setup and thats how I gauge my pressure accurately.

Bad sensor, faulty wires, maybe? You really need to get an oil pressure gauge, the stock sensor is pretty much good for nothing.

If I'm not mistaken, when the two sensors are connected wrong or are grounded it will not function/stay at zero/or peg high. Correct me if I'm wrong though...

 

[Vegas Smith]

I um, uh, did this on purpose to test the knowledge of the forums. Thanks to all who got the correct answer and passed the test.....

 

[Kenny07]

We all make mistakes. Glad you figured it out!