ok well how bout you go **** yourself and be a dick somewhere else... k? sounds good... it was a simple question i mean common sense would prove that the TPS connection would connect to the TPS sensor but hey why in the hell would a TPS connection have anything to do with the TPS? well lets also see here.... considering i dont have either the Neo or the SAFC II i guess that would explain why i am not understanding the whole you cant actually control your fuel you can only take fuel out across the RPM band but hey what ever you say man, go buy yourself a civic and a hat bigger than your head you deserve it! [sm=icon_flaming.gif]

 

thanks for the laugh... needed that on a busy stressfull work day.

 

you're very welcome it made me feel better.... lol

 

Now that you feel better... I really hate typing what has already been posted.

The TPS wire on the SAFCII just controlls the switch between high and low throttle settings. Technically it does not control your fuel, only your two seperate fuel adjustment tables.

The MAP sensor wire controls fuel by adjusting the signal to your computer. Your MAP sensor is a 0v to 5v sensor. When you are at WOT you are at 4.6v on the MAP sensor.The SAFCII shows more voltage to the computer to add fuel. Computer thinks more air is coming in than really is and adds fuel.The SAFCII lowers the signal to the computer to take fuel out.Computer thinks less air is in the manifold andprovides the correct fuel for the voltage it reads.

4.6v, as mentioned is, WOT. If the computer sees any higher than that voltage that means you are making positive pressure (aka boost). The computer will know something is wrong, since you are an N/A car and put you into limp mode and trip a MAP code.

so, lets paint a scenerio for you...

You are at WOT (4.6v) and you you notice that you are running lean on your wideband. You now add fuel to compinsate. You hit WOT again which is 4.6v, but now you added fuel which adds voltage. The computer now reads over the real 4.6v and you pull a MAP code and go into limp mode.

Hope thats clear for you...
k3v

 

it is.... it is a lot more clear than the post....ok so then this would not be ideal for a turbo application because you NEED to add fuel.... now what if i were to put bigger injectors in the car and then figure out what my a/f ratios are and then take out fuel as needed.... now would that work or no? and if you get bigger injectors would you need to put in a FPR and a Return line? or what?

 

Our only problem is, is that our computers cannot compensate for positive pressure... unlike a honda. lol who can compensate up to 10-11psi...

It worked for my turbo application.... your right though. i overloaded my fuel system with a RRFPR, return line, and bigger injectors and used the SAFCII to pull out fuel (fine tune). My write up explains that process.

 

yea after reading it a few times i kinda get what you are talking about but i am still confused about why the TPS connections is in the same circut as the MAP sensor connection..... i thought the SAFC needed to take both of those two things the MAP and the TPS and do its own calculations here and there and then outputting the correct signal to the PCM telling it how much fuel to put in here and there....

 

The TPS wire only tells the SAFCII when to to switch between high and low throttle settings... SAFCII only adds or removes fuel by altering the MAP or MAF sensor voltage.

if you hook it up to the TPS wire in the above example....

0%-30% throttle would be low table settings...
70%-100% throttle would be high table settings...
30%-70% throttle would be a mixture of both settings...

This is fine if you are non-turbo... I wanted my SAFCII to switch to high settings when boost kicked in. The only way to do that is to hook it up to the map.

MAP sensor voltage is related to boost/vacuum. TPS is only Throttle position.

 

ok so for an N/A setup its prolly better to hook the TPS connection to the TPS but then i might run into a problem if i push the throttle all the way down from a low RPM b/c then it will try to run the High throttle table when it needs to run the low table right? so i guess using the MAP sensor circuit for the TPS connection.... now as far as tuning goes i understand that you can only take fuel out so what would be ideal settings for an N/A settings. in other words how much fuel should you "take out" and where along the RPM band should you do that....?

 

its gonna be different on every car... that is wy you need a wideband A/F gauge.

normal cruising... your looking for 14.7 WOT you should be at 13.5. Get a wideband first because you may be at those AF's already. May have no need for a SAFCII.