I have an AEM analog oil pressure gauge with the electronic sender mounted directly to a Blox oil sandwich adapter. The adapter also feeds a turbo oil line.

I started to get erroneous oil pressure readings on the gauge approx. two weeks ago. The pressure will read very low, but will sometimes read correctly after driving, then revert to bad readings. I confirmed there is no oil pressure issue by using a shop gauge to verify the readings.

I've read on a few other forums that the pressure sender shouldn't be mounted directly to the adapter, but rather on the firewall and fed from a separate oil line to avoid vibration. There is even a product that is recommended specifically for this issue (not affiliated with company, etc):

http://www.amsperformance.com/cart/A...Unit-Line.html

I wanted to get the HT opinion on this before I replace the sensor. I'm a little skeptical of this simply because there are obviously sensors mounted all over the engine without issue.

Thoughts?

 

The closer you can get the sensor to the mains, the better. This will give a more accurate picture of actual engine oil pressure. Keep it where it is.

Check your wiring to and from the sensor, and if possible, hook it up to a pressure tube to evaluate whether or not the sender is accurately reading oil pressure. Corrosion can affect the sensor output.

 

The issue isnt vibrations damaging the sensor, the issurebis vibrations breaking the brass T fitting inside the block, requiring drilling out the broken fitting from the block.

No sensor on the engine has a T fitting. All of them are single sensor per tapped hole

 

Help me out here -- my sending unit is installed into an Al oil filter adapter. I can assure you there is no brass anything inside the block as I rebuilt it from the ground-up less than a year ago.

The linked oil line extension specifically mentions the impact of mounting the sender to a sandwich adapter.

There would be no brass anything in this scaneario -- Tees or Ys or anything else ^ ??, and neither I or nor the linked product made any mention of this.

??

 

Well if its mounted like that then youre fine. That hose is for mitsubishis anyways. Idk if they have anything different to worry about but since yours is direct mounted to a sandwich plate I see no issues. The issue is usually people mounting a t fitting to the block with the stock pressure switch and an aftermarket pressure sender