Intake/Car Problems

[PhatBeezy]

OK so I recently installed a basic SRI for my 2005 scion. Everything was going great, but when I went to refuel the next day I encountered a few problems. After I filled up, when I began to drive away my car started stalling for no reason and just randomly died and the RPMs were going crazy. So I turned my car off and waited 10 minutes and it randomly fixed itself. 1 week later, I filled up again and the same thing happened. It seems to only happen when I fill up and this isn't that bad of an issue but I would like to solve it because that 10 minutes caused me to be late to work and that got me in trouble. Please offer any advice to fix the problem. Thank you.

[bwood87]

The crazy revs sounds like a vacuum line is messed up, but I do not know why filling up would have anything to do with it. Did a CEL come up when it was going on? It might also be an issue with the MAF sensor.

[navylife59]

Are you getting a MIL (aka CEL)? Check to make sure that your gas cap is on tight and snug. Also check your vacuum line that is connected to a small black module with a 2 wireplug (VSV purge valve). How long after you installed your SRI did this start happening?

[PhatBeezy]

The next morning when I filled up. It has only occurred since I put on my SRI and it only happens when I fill up. 10 Minutes after I fill up it starts to work perfectly fine, it's only when I fill up. My friend said that he is going to come over and reset my ECU and he believes that should solve my problem.

[navylife59]

Let us know what your outcome is.

[Mengsta]

Any update?

[TBITB]

what's an SRI? i think i got the other acronyms!

[TBITB]

o i think i got it --- Short Ram Intake? next acronym... BPV? saw it in another intake thread. for newbies like me there needs to be a dictionary or at least an acronym list. maybe i'll get on it unless im the only one who doent get this stuff

[Mengsta]

BPV is bypass valve. A valve made by AEM. I dont kno how exactly it works but when the air filter on the intake is submerged with water, the BPV inducts air through itself. Which basically cancels the chance of hydrolocking with a CAI.(cold air intake) . Which is what most people fear, though i run a weapon-r short ram With a Ram air setup that sticks right out my intake vent. ACtually gives me a noticeable gain. Yet i still have it during rain. ANd no problems, though im not saying im safe.

[TBITB]

thanks for the info! so short rams are better for performance? not sure i understand how that works.

[Mengsta]

Well you would have to search for that answer, I am very new to this forum, but for some reason i feel like scionlife.com has a bit more experienced/ older people. Though i think Lo bux racer and engifineer comes on this forum too, try searching on scionlife.com. I feel like that forum is much more simple and easier to find answers, but for a quick simple answer from me. Ill do it this way.

Short Ram:
Pros: Looks sexier.
-Probably cheaper
-Easier to install , yet they are both easy to install.
-Since the piping is short, you would usually gain better low end torque.
-No chance of hydrolock

Cons: Performance isn't as good on the top end.
-Sound probably isn't as sexy.
-Short Rams are prone to heat soak since the filter is right in the engine bay, which might rob some performance.

I personally have a weapon-r short ram, with their cold air box, and ram air. In a way i have both types in effect. Yet i personally still dont think any type of intake would give you much of a gain, I just got it as a present, and hey i wanted to do some modding anyway. Just get better at driving. if you want speed. Also i wrote this up in a snap, so be better if you search it up.

[TBITB]

good old fashion research! that's why they made us do it in school! thanks for your personal pros and cons as well!

[PhatBeezy]

I should be refueling sometime here in the next couple days. My friend and I reset my ECU and hopes that might solve the problem. I'll post again as soon as I refuel.

[navylife59]

Originally Posted by TBITB

o i think i got it --- Short Ram Intake? next acronym... BPV? saw it in another intake thread. for newbies like me there needs to be a dictionary or at least an acronym list. maybe i'll get on it unless im the only one who doent get this stuff

You are correct and it will happen. See we listen to our members.
BTW.... I generally state what the acronym is. Being in the Navy, whom has more acronyms than an unabridged dictionary, I realize firsthand the frustration of trying to figure out what things mean.

Originally Posted by Mengsta

BPV is bypass valve. A valve made by AEM. I dont kno how exactly it works but when the air filter on the intake is submerged with water, the BPV inducts air through itself. Which basically cancels the chance of hydrolocking with a CAI.(cold air intake) . Which is what most people fear, though i run a weapon-r short ram With a Ram air setup that sticks right out my intake vent. ACtually gives me a noticeable gain. Yet i still have it during rain. ANd no problems, though im not saying im safe.

Actually, BPV is the bypass valve on the discharge tube of a supercharger (some turbos). Similar to a BOV (blow of valve), it relieves the boost pressure when the TB (throttle body)

Originally Posted by Mengsta

Well you would have to search for that answer, I am very new to this forum, but for some reason i feel like scionlife.com has a bit more experienced/ older people. Though i think Lo bux racer and engifineer comes on this forum too, try searching on scionlife.com. I feel like that forum is much more simple and easier to find answers, but for a quick simple answer from me. Ill do it this way.

Actually, I am "experienced/older". At 39, this ain't my first rodeo. I have my ride since March 2005. This car was researched before I made the decision to buy. As stated earlier, I am in the Navy. Not only do I work on Naval Aircraft, but I have spent about a total of 4+ months near Tokyo. It was there in late 2003 that I saw my first bB (Japanese market xB). There was a poster at a dealership that had the tC on it. I asked my Japanese friend what this car was and could I see one. She talked to a salesman who stated that this car was to be a US market only release for the end of 2004. That's when I fell in love with the tC and new that it woul be my next car as soon as it hits the US shores. Unfortunately, Louisiana did not receive any till February 2005 and only by web order. I had to go back home to Texas to get the one that I wanted. One week after the TRD S/C was generally released I had one on order. I have good relations with several parts vendors. personally know Kenny Tran and Tony Cheung of Jotech Motorsports (the first to do a tC build) plus all of their contacts. In short, I feel that I am highly qualified to match anyone out there.

I am not going to put down SL (Scion Life). Your opinion is yours to make. They were the first forum (that I know of), have been indispensible in connecting the Scion community, and provide a knowledgebase service. Unfortunately, the site has become bloated, slow, and difficult to concisely find info. As such, the moderators are overwhelmed to the point that threads are strewn everywhere and posts have fallen into anarchy. People are posting incorrect, unsubstantiated information that is not corrected. The other downfall has been the bashing of newbies and the slander of the "dumb question".

Club-tC may not be the behemoth of SL with the large knowledgebase, but we are growing. You will not find regurgitated information. Everything is researched and thought out before posting. Erroneous information is corrected. I have 1600 posts on here as Senior Super-duper Moderator. One of my goals is to make sure your questions get answered asap.

Second, nobody is a "newbie" here. No one is an expert (including me) and no question is too "dumb"; everyone's input matters. Also, cussing and "beating down" other members is not tolerated. If someone does, I punish them with some corny joke! We like to keep it lively on here

[Mengsta]

Lol thats cool, and thank you navylife, much respect for your intelligence. But uhm first all of all i would like to say WTC (what the crap). I'm just wondering why you had to type all that. I didnt expect to hear all that info about yourself, Of course i know there must be a different set of very experienced members in different forums, that is why i am in three Tc forums. Because before i make a decision to buy a mod, i would like to know a good amount of opinions. So to start off by correcting you, I've been accustomed to keep threads on topic. This thread is called intake/car problems. TBITB mentioned he heard BPV from another intake thread. So i told him what BPV would of most likely meant, which is a air bypass valve that AEM makes. Say he was on a boosted thread, i would have said otherwise. And still Navylife, i respect your intelligence and you are actually why i joined this forum.

-Thank you, Tony

Edit: And whats funny is that you are so correct. SL is flooded with multiple threads of either wrong information or useless stuff. Though the pros outweigh the cons. The site is very easy to navigate, the color is nice, which makes it easy to read. Also they have alot of small things that make life easy like a parts section. Which is why i stick to searching and just pitchin in. Sorry to make this off topic.

[TBITB]

i happened to come across this group first in searching for a forum several weeks ago. it has been nothin but good to me. i've tried other scion groups since this one and it just doesn't have the "community feel" as this one. i can definitely count on you and the other senior members to get us the answer to almost any question. thanks.

and since you mentioned it, i've had this question for a while... is it possible to get that cool blow off valve sound with a s/c? you mentioned the bypass valve on the s/c being similar in some ways to the BOV on a turbo. right now, other than speed, that sound is the only other reason i have to justify wanting a turbo over a s/c (many years from now).

[Mengsta]

Many kids (not that i say you are one) ,even I, Wanted a turbo when i was young just for the cool blowoff valve. Remember when you're going boost, all motor, or juice with anything, to think about what you want. If you wanna sound cool and be fast at all costs, then yeah a turbo would be great. If you research enough to know what you are installing then you should be okay. Also remember where you live, I'm in Cali and putting on an aftermarket turbo that is not legal would be tough to stay away from fines. Also as for me im trying to get into autoX so i just got a few suspension mods and im just trying to be a better driver. But anyway to answer you're question, Atleast with a TRD supercharger, you would not be able to make a genuine blow off sound. The Supercharger has more of a whistle, which doesnt sound too bad.
Now Navylife go ahead and further educate, since i couldnt care less about FI.

-Tony

[PhatBeezy]

Alright guys, I filled up tonight and it seems to have worked. I did a couple things differently though. First thing was that I didn't fill up entirely, due to having no money . So perhaps that might have done something, probably not though. Secondly, the last time I filled up it was raining, I know that CAI have some problems with water but this is a SRI so I don't know if that would affect my situation. I can't recall if it rained the first time my problem occurred so maybe it was just a coincidence that it was raining. But to conclude, my problem was solved by just reseting my ECU (undoing the battery for about 10 minutes). Next time I refuel I'll try and fill all the way up and see if that was a factor. But for now the problem has ceased, thank you everyone for the advice, much appreciated.

[Mengsta]

O that is good, So you did not reset the ECU when you first installed the intake? Well its good that the problem is solved now.