Subaru Upper Engine Cleaner review...

[NMX516]

Your idle might have been adjusted at some stage to combat all the gunk in there, now it needs to be reduced again.

[marcusus]

Your idle might have been adjusted at some stage to combat all the gunk in there, now it needs to be reduced again.

I wasn't aware you could adjust the idle on NB's? Isn't it handled by the ECU?

[SuperMazdaKart]

Well theres some adjustment at the throttlebody valve & at the throttle cable.

[marcusus]

Where's the throttle body valve?

The cable I can play with. If it's still idling high after another drive today, I'll check them out and see if I can tweak it down.

[NMX516]

There's an idle speed adjustment screw under a rubber cap beside the throttle body. You've also got to bridge a couple of the terminals in the OBD plug-in point when you do it, but I'm not entirely certain which ones, so won't take a guess

[marcusus]

Yeah, found the screw (thanks Dave & Les). Seems to have fixed it for the most part. It's still idling a little higher than before, but the screw won't go in any further, so it'll be right.

Meanwhile, the car does feel a bit smoother when under throttle, but I haven't noticed a seat of the pants gain after doing it.

[Caffeine]

I'll be giving this a go this weekend on my 240000km old NB8B (which has had the EGR connected for all of that time) so we'll see how much smoke comes out!

[Okibi]

Make sure you have the video camera handy Liam.

[Caffeine]

Make sure you have the video camera handy Liam.

And I'll try and borrow the endoscope (with video output) from work so I get see before and after shots inside the throttle body

[Caffeine]

Endoscope and can of cleaner procured

Cleaner was $18.90 from Denlo in Parramatta. I'll have to find some device capable of recording the output of the endoscope too...

[bruce]

Endoscope and can of cleaner procured

Ohh, Wayne... where are you?

[cshaks]

Endoscope and can of cleaner procured

Sorry but that quote just leapt off the page at me!

[Caffeine]

Cleaner applied! Significantly more smoke than in Andrew's video, although nothing like the subaru video posted earlier...

Car seems to idle smoother.

It did highlight further problems, as the car produced quite a bit of smoke in the engine bay too! Looks like I have a leak in the exhaust manifold or something. Could explain the power drop / funny smell I've been chasing for a few months now

[Hammer]

While getting my car serviced yesterday, I took the opportunity to do the upper engine clean. Some smoke did come through but not as much as others I've seen elsewhere.

The video posted here: viewtopic.php?f=57&t=34566&p=539978#p539978

[psquire45]

so yeah i did this over the weekend. have to admit i was a bit let down and felt a little ripped off that i didnt seem to get any smoke at all.

car does seem to run a little smoother now. but thats probably down to the oil change i did after using the cleaner