I bought my 2005 Roadster back in April, and I've been loving it ever since. I've gotten a lot of help just reading the posts in the forum so I'm sure someone will know the answers to my questions below.

I’ve been getting water in the Roadster every time I hit a puddle, so after reading all the “water in the car” posts I decided I should remove the cowl and clean out the drains, which seem to be the predominant source of leakage. I found two interesting things.

1) Not a speck of debris in the drains, they were wide open. I ran water in and it poured out as it should, which leads me to believe the water is coming from somewhere else. I can leave the car out in the rain (one of the downsides of not having enough garage space) and not get a drop of moisture inside, but as soon as I drive through a puddle or any amount of water, whichever side hits the puddle gets water in that foot well. The pictures show where the water comes in. It runs down from behind the plastic kick panel and soaks the carpet. Any ideas where it might be coming from?


2) I also found some sort of electrical device spliced into a wiring harness near the cowl. It has a **** that adjusts from low to high, but I’m not sure what it does. Engine speed changes slightly when I make an adjustment, but then it settles back to a normal idle. I’m assuming this is supposed to bias one or more of the engines sensors, and fool the computer into providing more power, but I didn’t want to remove it without knowing what it was first. I’ve attached a couple of pictures, but it has no markings or means of identification in it. Any ideas what it might be?

 

It seems to be wired in to the Mass Air Flow meter. Why, I couldn't guess.

I'll bet it was advertised as 50+ HP, though.

As for the leak, It looks like you are missing a number of items from your cowl area. IDK.

 

They do. "apparently" they alter the air temp reading thus altering the AFR for economy or performance. Have one in my center console, my wife thought it would be a nice present when I got the crossfire.. It wasn't rated at 50 HP so I never hooked it up..

 

Thanks guys. I assumed it was some sort of "make your car go faster" or "go 100 miles on a gallon" device, but I wanted to be sure before I tore it out.