adrock3217

Ok, 1988 GTU, removed rats nest/emissions, still have BAC, etc.

My O2 sensor is not plugged in, due to shielded wire being torn, so yeah. I imagine it runs really rich.

Me and Myk(EAGE8) took it for a drive. Was a massively FUN ride, with my newly installed RB True duals, all the emissions removed, impossible to get traction in first gear, etc.

We came back, and found a really big spot of gas in the garage, where we had started the car to warm up. Upon further inspection, there was a trail following the entire path we drove. 2 lines, about 1/2" wide each, of straight gas.

Ideas? ..the lines/puddle appear to have come from right around the middle of the engine, like..where the injectors sit..

The primaries/secondaries never leaked before, and as far as I can remember, the only thing I did during the emissions removal was run new fuel hose to them - I didn't take them out or anything!

Tech_Greek

First off, removing the rats nest on a N/A FC from what I can tell, is incredibly stupid. The only reason I did it was so that I could fit my supercharger on.

DemonicPupil

How did you get everything off without removing the secondaries? Either way, I'd take her apart and look to see if you cut the hose putting it back together or hose clamps aren't on right?

My car ran fine, even though it was dumping a ton of gas/sec when one of the rings on my injectors got torn. Might as well just take it off and find out what's goin on. You can run the pump without starting the car by putting a jumper across the yellow connector inside the rubber plug. It's on the passenger side fender, near the air box.

adrock3217

Incredibly stupid? How is removing useless things incredibly stupid, lol?

And, I don't remember this being a "judge half of the FC world" thread. This is to get a problem of mine fixed, promptly, please.

I would wholey accept you're post, if you would just include some information I can use in it too??

adrock3217

I removed the secondaries rails, but not the actual injectors. And, doesn't turning the key fowards run the pump too? Because Myk did that, and no leaks could be found...

ddub

PD, torn fuel hose, clamps not on tight enough. Those are places to start.

And I wouldn't drive around or even idle it without a fire extinguisher until you have it figured out and fixed. Don't want your engine bay to go up in flames.

ddub

Why exactly? I'm confused... There is the same amount of point in doing it as on a TII. Simplifying the system and removing stuff that is no longer needed. S5 n/a has more reason to keep it, though, since the whole vac/air pump assembly operates the vdi and aux port system.

matts86fc3s

by removing the rats nest, like me, you have to run new fuel lines as the rats nest held the metal parts of the fuel line going to the rails... so you had to run new lines to the fuel rails... i had a leak after i did this becuase one of the factory clamps was just worn out and wasnt holding very good... didnt leak perfusely but it did leave a puddle... i had to take upper intake back off tho to inspect and find. so check all the new lines you had to run

ddub

Screw the factory clamps, they are old and inferior compared to other types you can buy brand new, for cheap, and use. I never even considered using them when I removed emissions and the rats nest.

Tech_Greek

adrock - because it does help gas mileage, and it does help the smell of a Rotary - A LOT! Also no the key turning to on doesn't turn the fuel pump on if I remember correctly.

I wouldn't do it on a TII either - If I could have the emissions back on my car, just to have the straight smell that it used to have then I would but I can't, when you get done running your car for about an hour and park it in somewhere like a garage or somewhere slightly enclosed you'll smell that god awful stinch - and yes - it was there before I went straight pipe.

The N/A also has six port operation (S5 anyways) and VDI to worry about with part of those solenoids that run off of the emissions.

NEVER EVER USE THE OLD CLAMPS, you'll learn your lesson the hard way like I did, always use high pressure clamps that are of the proper size.

eage8

iTrader: (9)

first off, you don't know what he's doing on his car. there are definitely many things you can do to a car that the rats nest hinders a lot. (would you get better gas mileage if you had your rats nest on with your supercharger?)

second off, when you say first off something has to come after it.

third off, he already has no cat because he has a road race exhaust, and is currently building a stand alone air pump to run the aux ports. and he also happens to like the smell of gas and other rotary smells.

fourth off, yes I agree it's probably the clamps. that was our original plan was to take it back apart and check those.

ddub

Never heard that one before, fuel use should remain the exact same with or without emissions. Now, the smell of the gas might make you think it's worse, but it really isn't. I got 19mpg city without emissions and stock ecu :|

Yah some people don't like that, it's understandable. I have my car like that for a year and a half, stopped noticing it.

That's only s5, s4 runs off back pressure and doesn't have VDI. Granted he cannot use backpressure either since he went true duals, god only knows why! But there are many other routes to take than using the vac rack to control it. Besides he can't even do that since he's s4. He could have stripped emissions and still run the aux ports off backpressure if he wanted to.

Besides, doesn't the RB road race header have a nipple for back pressure feed to operate the s4 aux ports? I could've sworn it did, or one of the models of the road race header RB makes does.

eage8

iTrader: (9)

yeah, they do sell one that does have a back pressure nipple, but he's going to use a megasquirt to control an electric airpump so he dicided not to get that one.

Tech_Greek

Yeah, actually, I would, when I removed the rats nest when I was N/A I went down 3 MPG (in the brief period that I had the supercharger off).

Apparently so in your book

What are you his bitch? Why are you answering for him?

Then why are you posting this thread in the first place if you knew the answer the whole time...

I'm done with this thread, when you insult the people trying to help you then you aren't going to get help...

eage8

iTrader: (9)

because I'm online and he's not. and I was there if you check the original post. and I deffinitly didn't know the answer, but I had my suspicions. I also didn't make this thread.

adrock3217

Excuse ME, Sir Tech Greek, I already said

Yet, you have not YET given me a bit of useful information for solving my problem! dDuB, I'm gonna go buy some clamps to hold the lines on, because yeah, I used the stock ones. If that doesn't help, I'll make a new thread, this one is dead..

Tech_Greek

Oh no, that's not information right? JACK ***!

adrock3217

Yet you had to cut down the entire system of my car BEFORE giving any information. JACK ***.

Tech_Greek

Because removing your emissions is stupid - thats more than enough information than you should need.

You're just digging a hole bigger and bigger - I'm threw with the 5 year old ePiss contest, don't come crying to anyone on the board when your RX-7 catches on fire and then get pissed off because no one helped you...

Make sure and carry a fire ext. good day!

SonicRaT

iTrader: (6)

LOL, I'm pretty sure that was due to your driving style after your newly found upper-band thanks to no longer having stuck aux ports.

The vacuum rack won't effect fuel mileage at all unless you leave your aux ports unhooked (and vdi on a S5). I averaged 29mpg highway and 22 city in my GTUs with no rack, just had the airpump ran to the air silencer from the ACV, vacuum line T'd into that tube, and the two solenoids ran to the aux ports and the VDI. Removing it provides the benefit of simplifying (for troubleshooting and diagnostic), and removing brittle rubber that cracks/falls apart and creates vacuum leaks, and faulty solenoids/etc that end up with the same result. If you're in there, might as well remove it if you can.

Tech_Greek

No, gas mileage did go down for that :P but no when the charger locked up I put the N/A stuff back on temporarily and my gas mileage was still down with me babying it.

adrock3217

Sorry about the hissy-fit, Tech. I was just having a really bad night, not knowing what to do about my gas leak. You're information is welcome - but if you could, please, pleasee, if you want to comment about my car do it in PM or lounge thread or something, I don't like my tech-thread's being overlooked due to fighting :|

Thanks.

Tech_Greek

Nah it's cool, believe me we all have those days, I just went through a huge coolant leak ordeal.

I wasn't trying to pick a fight, just wondering WHY you removed the emissions.

Try high pressure hose clamps on everything, make sure the hoses cant twist or move what so ever with them on there and you should be alright.

SonicRaT

iTrader: (6)

Man I don't think I could get 3mpg with a 550/720 combo in a stock N/A lol, that's terrible! :o

ddub

We're far from done here.

And for the record, removing emissions isn't stupid. If you can get around it in your area and don't have testing, it can extremely simplify the system, remove a lot of vac lines, and make a cleaner much more simple setup. It does NOT hurt anything.