What is this?

Adam_NAclubman · Postby **Adam_NAclubman** » Fri Oct 16, 2009 10:58 pm

It's on the bottom of the throttle body, I'm not exactly sure where it's meant to go

Adam_NAclubman · Postby **Adam_NAclubman** » Sat Oct 17, 2009 1:17 am

After a couple of beers I think I remember what it is, the original crossover pipe hasnt been anywhere near the car since the NA stuff was ripped off a few weeks ago, it has a hose that comes off it that goes into this fitting doesn't it? I'm thinking its for idle airflow when the throttle butterfly is closed? I don't think my AVO kit has anywhere to feed it from though?

Szemen · Postby **Szemen** » Sat Oct 17, 2009 3:38 pm

If that's on the throttle body, its the Idle Control Valve.

Adam_NAclubman · Postby **Adam_NAclubman** » Sat Oct 17, 2009 4:09 pm

I assume that it needs to be connected after the afm and before the turbo? I can't just chuck a little breather filter on it?

Szemen · Postby **Szemen** » Sat Oct 17, 2009 4:14 pm

Stock NA8s have these connected up to the intake piping. Just before it enters the TB. I'm pretty sure taking it out will result it in idling like a pig. As for turbos...I would imagine it to be run before the turbo as the compressed air might much about the the sensors? I'm not too sure.

d-mag · Postby **d-mag** » Sat Oct 17, 2009 6:18 pm

Mine's just connected to the intake Ad...

Adam_NAclubman · Postby **Adam_NAclubman** » Sun Oct 18, 2009 12:22 am

Ahhhhhh, I thought that brass fitting you have the other end connected to was for the blow-off valve, this makes a bit more sense. Where do I connect the bov then though?

SuperMazdaKart · Postby **SuperMazdaKart** » Sun Oct 18, 2009 12:48 am

Thought you wrote you weren't going to have one. Your last turbo (old Skyline?) didn't.

Adam_NAclubman · Postby **Adam_NAclubman** » Sun Oct 18, 2009 12:55 am

It came with a recirculating Bosch unit, I'd run that. I just don't like the stupid noisy ones

d-mag · Postby **d-mag** » Sun Oct 18, 2009 10:15 am

Ad, my BOV is on the other side of the intake, you can see it in the pic. Isn't yours the same as mine?

Adam_NAclubman · Postby **Adam_NAclubman** » Sun Oct 18, 2009 10:28 am

Mine only has the one fitting on that pipe. Maybe I'll see about putting another one on it

Adam_NAclubman · Postby **Adam_NAclubman** » Sun Oct 18, 2009 12:08 pm

Change of plan, will run a t-piece inline between the fitting and the bov

Postby **Okibi** » Sun Oct 18, 2009 1:01 pm

That's just what I was going to suggest :mrgreen:

Adam_NAclubman · Postby **Adam_NAclubman** » Thu Oct 22, 2009 9:22 pm

Ok, those problems are now solved. Photos in my garage thread if you're interested.

New problem

Did the vac lines today then tried to start the engine, with the stock ecu. It should be able to idle on that even with the kit installed.

Unfortunately, it won't start. It cranks over nicely on the starter motor, no bearing knocking or anything, you can hear the air coming out the dump pipe going foomp foomp foomp foomp foomp (but quickly). It has spark and I could smell petrol when I pulled the plug out.

Could the timing be way off? We put a new timing belt in and it went on in the same position as the old one.

I also want to try changing the cam angle sensor for the one from my old engine but I don't know how to remove it.

Are the fuel lines connected to the right end of the fuel rail? This seemed the most logical way to do it to me

Cheers