hypntyz7

Like I said, I could be wrong, sure, but that's where Id start. I cant say about your vacuum routing without seeing it, but either way you go it shouldnt do what you describe.

From here on out it'll be hard to get right, because the problems can be so small that it'll be damn hard to diagnose without being in front of it. It's a fine tuning kinda thing, and you just gotta get experience at it. Small problems like that can have a hundred different causes, so it's a lot of fun!

hypntyz7

Oh, and Im getting a 'vert because a) theyre pretty, b) this one is in EC, c) I like the s5 NA motor the best, and D) I dont need to go 125mph anyway, anything less than that I can achieve in the 'vert

SonicRaT

iTrader: (6)

Oh, series 5, why didn't you say so!? Best FC's ever, haha. Anyway, I'll show you a pic of my BAC routing, the rest of the vacuum is simple, all plugged except for oil injectors/boost gauge/sensor/fpr. Let me find that picture for you.

hypntyz7

HOLY MOTHER OF GOD rat you have posted 75 times today! son of a fokking biyatch!

SonicRaT

iTrader: (6)

That one right there without the hose clamp in place and tightened (whoops, god damn I'm a retard!) Is that good, or is that a bad thing to be doing?

hypntyz7

Looks right to me.

hypntyz7

what is that hose to the far left of the picture, is that an open vacuum hose?

SonicRaT

iTrader: (6)

Damnit damnit you aren't supposed to say that, I want this to be simple!@)$*!@# I'm starting to get annoyed at not being able to drive it around! It's going to be snowing here in less than a month, which means no more rex fun! Oh, and about the posts, what can I say, I've been trying to answer anyone and anything So, what would happen if my BAC was dead and looping the air from the throttle body to the turbo? Perhaps I'll just plug it tomorrow and and see if it fixes anything. Anyway, where should the FPR hose be running to? at the moment I believe it runs to the nipple on the inside of the lower intake manifold.

SonicRaT

iTrader: (6)

Oh, that hose to the far left is my windsheild washer hose, since my hood is off it's just hanging around there, I forgot that once and I hit the button and wow was that impressive

hypntyz7

IF the BAC were stuck open somehow adn looping air around like you say, the car would idle high. Such as when yo uturn on a/c, the car is supposed to idle up. THe car does this because the ecu raises power to teh BAC, it opens, adn allows more intake air around the (closed) throttle plates, adn more air (plus more fuel alloted by the ecu) equals higher idle.

IF it were stuck shut, not working, the car would have its normal idle whatever that is set to. The only time this would hurt anything is when you put it under more load than idle should be: a/c or p/s, brakes, etc. that bog down an engine. that's all the BAC does.

SonicRaT

iTrader: (6)

Damnit you're ruining my day here. Well what are the chances of an AFM going bad to the point that it doesn't open as easily as it is supposed to? Is that even possible? It still moves fairly easily.... I guess I'm trying to avoid the obvious but god damn, if that AFM part is really bad, the guy I bought the engine from screwed me on every god damn thing I bought from him, literally!

hypntyz7

alright rat, youre gonnna have to post whole by yourself now, Im going to bed. got a long week ahead of me :-)

SonicRaT

iTrader: (6)

Noooo, I need to figure this out damnit! I'm getting fed up with this! Long week? Hell I just got home from work about 20 minutes ago, and I have to go back in less than 4 hours! But then again I average less than an hour of sleep a day. So, AFM replacement it is... *sigh* I wonder what it'll be after that!

hypntyz7

And screw you he did.

I did tell you that the injectors were 460cc NA injectors, right? Good thing you didnt use them(if you could have).

I did tell you that the ecu was an n340 convertible ecu, didnt I? Supposedly, those are mapped for boost, but I dont trust it as far as I can throw it, so i sold it cheap. I took a big loss on all that, but I know you took a bigger one, plus you didnt know the difference, so I just chalk it up to bad luck. But you got screwed buddy.

Try another afm, even if it is an NA afm, muyst be s5 though. I hear ones off a ford probe 2nd gen or a mazda 929 will replace the AN afm, so you might go junkyard hunting and see what you come up with. if you really have to have, I can probably find you one locally here, bt it might cost anywhere from $25-100. I knwo there are some junkyard ones out there, and I can test it here(at least for a couple more weeks while I have this guy's s5 NA) before it gets sent out to verify that it is no longer your problem/

SonicRaT

iTrader: (6)

Well, the closest junkyard with an rx7 is over 300 miles away, so I think that's out of the question. It'd be nice to have a tested and working AFM from a verified source instead of going out on a whim. If you can find one soon and test it out let me know and I'll pick it off from you, but I'd like to have this done by friday so let me know. Yeah, Scott told me about all that stuff I sent you, I was depressed. I hadn't much idea how to tell the difference between the injectors, and the ECU I had someone try in an 87 T2 and it ran, he didn't drive it anywhere, but it started and idled/revved fine so I was like, ok. Shitty... I felt quite bad about the whole ordeal. I'd like to pay you back somehow, just give me some idea of how to do so, you've been quite the help and I would rather be even than have you one upping me on a bad deal. Anyway, if you can find me a s5 AFM and test it soon, I'll definatly take it, but if not I'll have to test my luck again

hypntyz7

Oh I can definitely find and test youy one this week, I kow where about 3 are right now, but money is a problem. Even if you paypalled it to me, it wouldnt do any good because my card got taken at an atm machine and subsequently shredded, so until a replacement arrives I hae no in-person acess to my paypal money.

You could overnight a money order or something I suppose, if you dont find one elsewhere. You might contact the guy inarlington again, he might have one and be willing to test it for you. What I would get for you would be an NA afm...not much difference, but still not a turbo II part.

DaleClark

iTrader: (55)

Few things -

First off, I'm assuming you probably did this on purpose -the hookup for the brake booster is bolted to the lower intake manifold upside down. I'd re-route that since you'll be running a very critical vacuum hose REALLY close to the turbo/downpipe.

Second, I seriously doubt you have an AFM problem. They rarely go bad, and when they do, the car won't work at ALL.

I seriously believe you have a vacuum leak. First culprit would be the ACV block-of plate - that looks homemade. Start there. Also, pull the studs out of the intake manifold for the ACV and replace them with bolts - a bunch of washers on a stud like that is Ghetto. Just use a pair of vice grips to unscrew the studs - really easy, takes like 5 minutes if you're slow.

Get a can of starting fluid. Have a buddy hold the car at an RPM where the car will keep running. Slowly and methodically spray the starting fluid everywhere air is passing through - the turbo inlet duct, the ACV blockoff plate, everywhere. When you spray the vacuum leak, the car will rev up and smooth out a bit. I recommend starting fluid because it works well, and it evaporates REALLY quickly and doesn't leave a residue - it's much less of a fire hazard. Brake cleaner sticks around a lot longer.

9 times out of 10, problems I've seen with getting a new motor running are vacuum leaks. And, your car has all the symptoms of a sizeable vacuum leak. It takes time and experience to really combat vacuum leaks - the more you do it, the better you get at not having them to begin with.

Good luck!
Dale

hypntyz7

wow, the man himself has appeared!

Dale, where you been? Did you ever get that email I sent you about a week or 2 ago?

SonicRaT

iTrader: (6)

Well, it is a ghetto ACV block-off plate, made by hypntyz7, and yes, I have checked for vacuum leaks (using the starting fluid) and found not a one, and yes, I know the brake booster line is point downwards, and no it's not going to stay that way. And third, yeah I know the washers are ghetto too, ghetto for a ghetto application! Anyway, I've had no luck in tracing down a vacuum leak so I'm starting to look elsewhere, but I'm going to give it some more tries tonight and hopefully fix it.

hypntyz7

Dale is the man with the plan, and he doesnt believe in doing it ghetto do you dale?

Like I said, Im taking your word that you have no vacuum leaks, and teh afm is really all that's left.