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#1 |
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C'est la vie
Drives: 2009 2 door hatchback Join Date: Aug 2009
Location: chicago
Posts: 482
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Could it be possible you're letting out LESS metered air because you tightened your BOV? And as a result, your theroetical mix isn't so far off as the actual mix to throw a code?
I think thats exactly whats going on. My BOV was set so loose when I got it when my hand was near the vent I felt air being sucked in at idle. Once its tuned they program the piggy back to ignor the mass air when U let off the throttle. This is when the BOV vents and for a moment the mass air is still reading, causing it to go very rich. |
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#2 |
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1NZ-6spd
Drives: '05 6-Spd Vitz RS Join Date: Oct 2008
Location: Oshawa, Ontario, Canada
Posts: 2,967
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You have to remember, when the you shift and close the throttle, the turbo is still spooled to an extent and is still pulling air through the MAF and out the BOV. That's why you get a rich condition. The air going through the MAF isn't going into the motor, but the ECU thinks it is and is still dumping in fuel.
There's a couple of ways around it while using a MAF. You can move it to after the BOV, or program whatever computer you're using to look at the throttle position sensor and have a base map off throttle position, using the MAF for fine adjustment rather than the only input. |
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#3 |
![]() ![]() ![]() ![]() Drives: 08 Yaris Turbo; 06 tC Turbo Join Date: Jan 2010
Location: New Jersey
Posts: 875
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Anyone know if the FIC can be used with the UEGO wideband to automatically detect AFRs then correct them based on user entry? Would make things VERY easy and simple. Always the best route.
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#4 |
![]() ![]() ![]() ![]() Drives: Yaris LB Turbo Join Date: Aug 2006
Location: Miami FL
Posts: 782
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Yes the AEM FIC will accept an input for the UEGO. This adds a digital gauge that can be seen through a laptop along with the RPM & Load gauges that are standard.
No it will not automatically correct AFR's. Not even the the AEM EMS has automatic correction. I believe only MOTEC has that.... |
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#5 |
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C'est la vie
Drives: 2009 2 door hatchback Join Date: Aug 2009
Location: chicago
Posts: 482
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Their are some good videos on Youtube that help descripe the features of the FIC and a little on how it works. All the videos are made by AEM, so their for real. I have the wideband already installed and I should be recieving my FIC tomarrow. I plan on reading all the instructions installing and then trying some tuning myself with the help of those videos. The wideband will tell me if I'm going in the right direction or just making it worse. I would definitely get the wideband. It tells you exactly whats going on and using your tach. U can tell where you need to make adjustments.
I will let U know how it turns out. |
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#6 |
![]() ![]() ![]() ![]() Drives: Yaris LB Turbo Join Date: Aug 2006
Location: Miami FL
Posts: 782
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If you or anyone need help in tuning the AEM FIC please ask ; )
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#7 | |
![]() ![]() ![]() ![]() Drives: 2008 Yaris LB Join Date: Jul 2010
Location: PA
Posts: 899
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Quote:
A lot of us would like to know how to get started and what we should be looking for and doing in there. I know at least 10 other people that would find it useful, and that is just me so I am sure there would be a ton of interest since there isn't any tuning threads at all. Thanks!
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#8 |
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1NZ-6spd
Drives: '05 6-Spd Vitz RS Join Date: Oct 2008
Location: Oshawa, Ontario, Canada
Posts: 2,967
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Has anyone concidered the Allan Phillips Racing ECU for their tuning needs?
I know it's pricy and all, but it looks like it would do everything with ease. |
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#9 |
![]() ![]() ![]() ![]() Drives: Yaris LB Turbo Join Date: Aug 2006
Location: Miami FL
Posts: 782
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APR is the Dezod unit, it can only be purchased through Dezod
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#10 |
![]() ![]() ![]() ![]() Drives: 08 Yaris Turbo; 06 tC Turbo Join Date: Jan 2010
Location: New Jersey
Posts: 875
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Yeah, I'm really on the fence when it comes to tuning... I have only one tuning shop that is near me, and I'm really not crazy about the guy from the three conversations we've had. I wouldn't mind learning some tuning, but am worried that with my inexperience and lack of dyno that I may cause damage... Then again, I did just throw a turbocharger in my car with no mechanical expertise so..
![]() I'm definitely leaning towards doing it myself... I'd like to think I get the basics of AFRs and the effect of adding/removing fuel. With a wideband, how hard could it be? |
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#11 | |
![]() ![]() ![]() ![]() Drives: 2008 Yaris LB Join Date: Jul 2010
Location: PA
Posts: 899
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Quote:
I am just curious if you turbo guys are going to build your motors or just stay with a conservative boost. Not sure our tiny little motors are built for the long-haul when increasing its demands so much with boost. |
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#12 | |
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C'est la vie
Drives: 2009 2 door hatchback Join Date: Aug 2009
Location: chicago
Posts: 482
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Quote:
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#13 |
![]() ![]() ![]() ![]() Drives: 2008 Yaris LB Join Date: Jul 2010
Location: PA
Posts: 899
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Do you think our cars could run ok stock @ 12psi with a not-too-agressive tune?
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#14 |
![]() ![]() ![]() ![]() Drives: 08 Yaris Turbo; 06 tC Turbo Join Date: Jan 2010
Location: New Jersey
Posts: 875
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I honestly don't know yet. If I did it wouldn't be for awhile.
Also very doubtful that a good tune will let this engine run on 12 psi. There's really no proof that it can't, so you could be the guinea pig. ![]() Anyways, I've decided I'll be doing my own tuning. I just ordered an AEM UEGO wideband and am going to do some more reading. cdydjded, I'll definitely be in touch... I'm hoping you can help me with the fuel trims for the most part, as that seems to be the most difficult. Yeah, exactly what I thought, but I'm using an FIC. I have to admit, it is slightly tempting to take the deal and get some REAL engine management... |
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#15 | ||
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Only Happy When it Rains
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Quote:
Quote:
__________________
Colin Chapman disciple |
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#16 |
![]() ![]() ![]() ![]() Drives: 2008 Yaris LB Join Date: Jul 2010
Location: PA
Posts: 899
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The jimze sc kit puts out 1 bar, as far as i can tell.
Therefore our cars should be ok at 12 psi. As long as the tune isnt crazy aggressive and richens out the afr. |
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#17 | |
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Bathroom + Laptop = <3
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Quote:
In terms of aggresiveness it relates to how much pressure you are pumping in there. Say on this engine 6psi on his turbo kit is streetable. you can get away with 8psi on a good tune, but on these internals and that turbo, you would be wise to not try to push more than that. |
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#18 | |
![]() ![]() ![]() ![]() Drives: 2008 Yaris LB Join Date: Jul 2010
Location: PA
Posts: 899
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Quote:
See, you guys can hit me with the noob hammer once in a while. lol Just wondering about that jimze blower and how much more it will put out and stress our engines. |
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