This is the 3rd time my prosport boost sender crap out on me. Appearently this time it got wet after took the car to a touch free car wash. The other two times the sender just started to give funky reading, irratic reading. To me it looks like the sender was overheated.

I placed mine right next to the windshield washer fluid bottle above the manifold. It gets hot there. Where do your guys install yours at? I have prosport premium electric boost gauge.

 

Same place as mine. I run the greddy profec 2 with no issues.

 

I called Prosport and they recommend that I install it inside the cabin. I drove the car today and there was no problem. It seems like the day with high humidity usually cause problem with the boost gauge. Don't understand why.