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doesnt the Emanage Ultimate do this already?

 
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To be honest i have no idea, ive never read about the ultimate much

 
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I plan on doing a head swap on my lx, and was going to use the vafc hook it up, how can this system work for me? In other words, will it work on the my LX ecu?

 
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Yes however PCS takes this one step further to provide closed loop, consistent operation....They use an O2 sensor skew, which is how a lot of ECUs relearn the tunes you put into the e-manage or s-afc.....They relearn through O2 sensor feedback...PCS solves this issue.

 
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I will look into the fact of VTEC control.....not sure if it does this.

 
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very interested in the product. i already tune my ECU. will that be a problem using the product (2004 ex coupe-headers,intake,cat back and ecu up grade)

 
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So Dezod, why would you suggest this piggy back system over e-manage? Besides it being able to overcome complex ECU's, which would would benefit me more if I am going with a low boost, small turbo application? (6 - 8 psi on a t25)? and why one over the other?

 
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It still is a piggy back. I do not think it's overkill in any scenario.

 
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I have noticed some problems with the e-manage with larger injectors and some slight adjustments being over-ridden by the stock ECU.....This system proves the same reliability thus far with all conditions.

 
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So this one won't have problems with bigger injectors and getting them to idle and it will also not be over ridden by the stock Ecu?

 
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The IS300 owner has not had a lick of a problem. He is running 650cc. If the IS has no problems....I think the EM2 will be fine. The IS ECU is FAR more worse than the D17 could ever dream to be.

 
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Im wondering this myself. I've looked over the program and i dont see a injector correction screen. With further reading the product info it implies that you compensate for the bigger injectors with the map/maf scew map so it seems that it would require more tunning across the full spectrum but i could be wrong

 
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Yeah if the IS is running 650cc then our cars should be fine

 
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The system is not as 'idiot-proof' like the injector correction factor on the e-manage. You can manually take out fuel and add fuel through the MAP skew. This allows for more tuning flexibility. Yes it may require more effort, however your results will be much more fine tuned accross the board. Your tune will truly reflect your efforts. Average dyno tuning time with this system is 2-3 hours to tune 25 PSI.

 
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Since this is all done with the MAP skew feature, am i safe to assume that this unit does not intercept and modify the actual signal to the injectors?

 
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good question, i read thru the manual briefly and didnt see anything on the wiring of the injectors

 
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Correct

 
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So this piggyback does everything you want it to do except control the ignition timing

 
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Pretty much

 
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wouldnt modifying the map sensor signal bring up the same baro ECU code as the emanage?

 
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With this it may be more controllable. Through extensive map tracing and datad logging, you can acheive a fully customizable injector correction factor accross the map. With the e-manage, it is a universal 1 size fits all correction based upon what you put into the injector correction factor. That factor gets taken into account all the way accross the RPM band.....With the PCS you can skew the MAP sensor voltage up and down in a 16x16 map to properly position yourself against that scenario. It might take some time to nail it down, but I think it's more possible with PCS.

I know personally the ECU has a certain level of variance it will tolerate at idle and closed loop operation. I have pushed and tested the boundaries personally......

 
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dezod have you ever heard of perfect power? they make several different kinds of units as well. they make anything form basic piggy backs toi more extensive ones to stand alones. they have a good unit called the smt7. it is a piggy back check them out and tell me what you think. it has full ignition control as well
http://www.perfectpower.com/products/smt7.asp

 
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when is the ignition control for PCS due to come? in close loop, will the ECU totaly ignore the signals from the emanage or ultimate? would that cause me to lean out and blow my engine if im in boost in close loop?

 
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According to Russ @ PCS, between April and June for the ignition.

The PCS replaces the e-manage. Not sure what your asking here. If you do not know what your doing, you cna blow your motor even with an e-manage. So I recommend professional tuning.

 
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i learned that the ECU will overide or overcome the signals from the emanage. ultimate likewise? is it substantial as in a complete overcome of signals? so will in that case the singals or tuning from the piggyback will be of a total waste or what? that is during close loop ops? and if so happens i boost during this phase will it lean out on me and cause me to blow up.

 
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The ECUs now a days, relearn some of the closed loop tunign through O2 sensor feedback, PCS overcomes this through O2 sensor skew.

 
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My question is how well will this work, will it be a constant UP and dOWN of AFR that will varry drastically? or will it be min amount of fluxuation as in +- .5 afr ? Right now i have mine tuned pretty damn close as to where the long term fuel trim varries VERY little

 
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The turbo IS300 that was tuned has very consistant numbers all the time. If tuned properly utilizing all of the options, it is a no brainer to make this work flawlessly.