Acura GSR MAP sensor voltages?

[itr1416]

I have a normally aspirated GSR and I am having troubles with my MAP sensor. The dealer says that I am getting a high input voltage from my VAFC to the MAP sensor or to the ECU. Does anyone know what the voltage range is on the MAP sensor from idle to full throttle?

I figured someone here might know having used the hondata datalogging..

Thanks!!

[G3-TEG]

I have a normally aspirated GSR and I am having troubles with my MAP sensor. The dealer says that I am getting a high input voltage from my VAFC to the MAP sensor or to the ECU. Does anyone know what the voltage range is on the MAP sensor from idle to full throttle?

I figured someone here might know having used the hondata datalogging..

Thanks!!

Remember, the VAFC modifies the MAP signals going to the ECU, thus if you try to add too much fuel, the ECU will see this as an error and go into limp mode and throw a CEL code. Most people seem to have a problem when they try to add more than 8-10% fuel anywhere in the low or high cam tables. Keep your fuel values below this, and you should be ok.. You can remove as much fuel as you want, but you are limited to about 8-10% when adding.

I believe the voltage range of the MAP is 0 - 2.5v

[itr1416]

Thanks for the info on the MAP voltages. I'll also have the VAFC settings checked.

So will adding too much fuel via the VAFC push the voltage up to the MAP?

[G3-TEG]

Thanks for the info on the MAP voltages. I'll also have the VAFC settings checked.

So will adding too much fuel via the VAFC push the voltage up to the MAP?

No.. the VAFC modifies the signal coming FROM the MAP to the ECU.

[itr1416]

OK got it....So would it be possible to send too much voltage from the VAFC to the ECU? That is what the VAFC is doing right? The dealer tells me that the ECU is getting a "high voltage input." I never heard of that and I'm trying to find out what is causing it.

[G3-TEG]

Yes.. thats what I'm saying all along.. if you add too much fuel via the VAFC, then it will be increasing the voltage of the MAP that is going to the ECU.

[itr1416]

OK got it. I'm a lil stupid sometimes and people have to spell it out for me. HA! Anyway I really appreciate you sharing your knowlegde and I now know where to start looking to fix my problem.

[G3-TEG]

Your welcome

[Carchitect]

IMO you really shouldn't be running a VAFC. This gadget only causes problems since the fuel and timing tables still go of the stock settings. The stock ECU is very sophisticated and is capable of learning and adjusting the entire fuel curve. So if any part of it gets disrupted it will make an adjustment which will negate to purpose of purchasing such an item.