What can be stripped ?

[Huli]

I am trying to fix my cracked intake (93 Fuel injected) and was wondering if I can remove the two tubes on the driver side of the plastic tube going into the throttle body? One tube goes to the valve cover, I figure I can just pop a breather on it. The other tube goes to the robotic contraption behind the engine, I assume it is some sort of eco regulated robot add on.

Can I remove the eco robot feeder tube?
Can I remove the whole damn robot?
Will it throw the check engine lite on?

Is there an upgrade to the MAF?
Any problem with moving the MAF closer to the TB?

Thanks!

P.S. By fix, I totally intend on straight piping to the MAF

[Movin]

The VAF has room for more performance and it can be moved where ever you want, just keep it close to right side up.

My red car runs fine without all that stuff and does not throw codes or lights. If I run to thick of engine oil it will idle slow when cold. I didn't do it on purpose, but a hydrogen-oxygen backfire completely removed the intake parts including that stuff. I was rather stunned..not a recommended procedure!

[MiltonHavoc]

^ pics of your bay?

[sketchman]

What is an eco robot?
Here's mine from a while ago. No CELs.
Oh, I was also running no TPS, and no IAC.

http://www.fordfestiva.com/forums/showthread.php?32712-CAI-Question

[drddan]

.... but a hydrogen-oxygen backfire completely removed the intake parts including that stuff.

Wow, the picture that went through my mind as I read that!!! :highly_amused:

[htchbck]

So by your description of the "ECO robot" it sounds like you are talking about the idle air control valve. You will need to do a little adjusting to of your idle if you remove that. But if you are ditching all that stuff, I would assume you could theoretically put the VAF on top of the valve cover pointing straight into the intake. Don't know how well it would perform in that configuration, but it will run, I've done it a couple of times when working on swaps and I didn't have the proper intake piping. Never drove them like that, but they will at least run.

[Huli]

Re: What can be stripped ?

I want to do mine like sketchman. Just moving the VAF to in front of the valve cover.

The robot thing I am talking about is behind the engine on the drivers side of the intake manifold. The 1/2 inch tube off the intake pipe that does not go to the valve cover leads to it.

[htchbck]

Thats the idle control valve. Removing it will require capping off the intake port and manually adjusting the idle speed to where you want it. I think it also throws a CEL code but I'm not positive.

[georgeb]

What is an eco robot?
Here's mine from a while ago. No CELs.
Oh, I was also running no TPS, and no IAC.

http://www.fordfestiva.com/forums/showthread.php?32712-CAI-Question

What kind of mileage do you get?

[sketchman]

I was getting a consistent 37mpg with nearly no compression (like literally NO compression in cyl 1, and nearly none in any of the others) and doing varying speeds from 45-75 on my 40 minute commute.

[Huli]

Re: What can be stripped ?

Idle control? Weird!
Okay.... going to leave it then.
Thank you!

Is there a mass air flow meter that can be subbed in for our Vane flow?

[sketchman]

I'm almost positive I remember that a VAF works backwards compared to a MAF, so I doubt it would be a direct swap. However with a small hobby computer like an Arduino, I bet it's surely doable. But again, not a bolt-in affair by any means. There was someone who mentioned using the Aspire MAF, but he also was using the whole control system from it. Wire harness, PCM, etc.

[georgeb]

I was getting a consistent 37mpg with nearly no compression (like literally NO compression in cyl 1, and nearly none in any of the others) and doing varying speeds from 45-75 on my 40 minute commute.

If you hooked up the TPS or IAC or both, what would it do different?

[sketchman]

At the time I didn't understand what I was doing completely, so I interpreted an unstable idle as a bad IAC. Simple. Unplugged it and set it with the screws on the TB. Still wouldn't idle well, and it stumbled on accel. So I ramped up the ignition timing, adjusted the idle screws accordingly, and yanked the TPS because it appeared to do nothing and was wired weird(when compared to the repair manual I had). I knew just enough to be dangerous, literally.

The IAC being hooked up on an engine in good running condition should keep a stable idle at whatever temperature or whatever engine load, etc, and the TPS should help with accel enrichment so it doesn't bog when you stomp it. Mine was dying and I made it work however it would. Not really recommended now that I know better. But I was learning as I went.

[sketchman]

Found the thread. It was iceracerdude. I wasn't quite remembering it right. He had a B6 in an Aspire running the controls that were already there, including the MAF.

http://www.fordfestiva.com/forums/showthread.php?32367-Festy-VAF-in-a-B6&p=373771&viewfull=1#post373771