phillys2k

is that a good idea leaving the ecu fuse out?

98TypeR#21

Here's my take on the ECU fuse thing (not really related to this thread, but since you asked):

Pros:
- ECU resets to baseline mapping everytime you start. For the 02-03 ECU this gives more performance in low-midrange rpms (I have an '02 ecu on an '01 car for this reason). I love it. And the car won't "learn" to compensate for hot-weather and degrade performance.

Cons:
- Since the ECU dies everytime you turn off the car, the headlight reminder doesn't "beep" if you leave your headlights on when you turn off the car. I've been burned once by this because battery was dead when I got back to the car! DOH!

For me, the pro outweighs the cons by about 10x.

phillys2k

i have the same exact model silverstone 01. imma try this tonight and post pictures . When u spray in the throttle body does it soak it up? or does it drip? i just cant see spraying in there without hydrolocking the car

98TypeR#21

You can spray almost continously right onto the butterfly valve. I sprayed up and down and all over, and when the engine started to struggle, I'd stop for a few seconds until it recovered. (remember, you're removing the plastic intake tube and spraying directly into the aluminum throttle-body)

The stuff must be able to be pretty much burned as is, because it didn't kill the engine.

They do say be careful not to rev the engine while it's going in, and don't flood it. But you'll see - it can take a LOT of this stuff without stalling.

Interestingly it coughed more when I started the process, and then less as I emptied the can. Based on this, I think that most of the sludge came right off immediately, but I'm not sure.

98TypeR#21

Sorry - I didn't answer your question directly. The TB will suck in the stuff you spray in. It may leave a small pool at the inlet of the TB, but mostly it went right in.

I did have a bit of trouble because the can wants to be upright, but there's not much room to get the can in there, so I sprayed from a bit of a distance mostly.

Good luck!

Wisconsin S2k

how do you know this worked if you leave your ECU fuse unplugged every time you start the car?

in other words, this may not work for people who DONT leave their ECU alone. while this may seem to "temporarily" fix the problem, I think the point xviper was making is that there is a proven technical reason this "bogging" occurs. and it really has nothing to do with building in the intake manifold. I've seen cars with less than 200 miles on them from the factory do this.

vader1

It should not do anything to the plugs, but it will mix to some degree with the oil, I would change it.

I have done many butterfly cleanings over the years and it was always recommended to me to change the oil afterwards, but it is your car.

phillys2k

98 type R u have pm aim me if u can

phillys2k

shoot that spray in here?

afwfjustin

^yes that is the throttle body.