you leave it empty. the reason is that if both ECUs are connected to
one sensor with two bias resistors, then neither machine will get an
accurate reading. it doesnt matter to MS where the bias resistor is
(inside it, or the other ECU), all it sees is a voltage, so for the
voltage to be meaningful you need to know what resistor is inside the
other ECU.
all you are measuring is the voltage at the point between two
resistors, one is changing with temperature.
you could probably determin the bias resistance by plotting the
resistance curve of the sensor, and then measuring the voltage curve
with it all on.
fred.
On 3/24/06, Ludotech <ludovic.cousin@skynet.be> wrote:
>
>
> Hello everybody,
>
> I plan to share my CLT and IAT sensors with the OEM controller (it's more
> easy for me).
> The megamanual says:
> "First, you must remove the 2.49k bias resistors on the MegaSquirt, R4 & R7.
> You do not jumper them, or replace them with other resistors, simply leave
> them out.
> Next, you need to determine the stock computer's bias resistor. "
>
> I don't understand: For the v3, the schematics shows that a bias resistor is
> obligatory.
> So I guess that I have to replace the 2.49 K resistor with the stock OEM
> bias resistor and enter this bias resistor value and three
> temperature/resistance points in megatune, and the table is created and
> downloaded automatically without using easytherm?
>
>
> Am I right?
>
> Thanks
>
> Ludovic
>
>
>
>
> you must replace it with the OEM bias resistor I guess?
>
>
> ________________________________
>
> V3 with MS II (blue board),Code v2.35,MT 2.25 + ford EDIS(still assembling)
> Engine: 1300 cc hyundai (G4EH), 4 cylinders, port injection.
> I'm learning english________________________________
>
> V3 with MS II (blue board),Code v2.35,MT 2.25 + ford EDIS(still assembling)
> Engine: 1300 cc hyundai (G4EH), 4 cylinders, port injection.
> I'm learning english
>
>
> This post is at:
> http://www.msefi.com/viewtopic.php?p=109513#109513
>
>
>
>
Posted by email.
Sharing sensors with OEM controller with MS II
Forum rules
Read the manual to see if your question is answered there before posting. If you have questions about MS1/Extra or MS2/Extra or other non-B&G code configuration or tuning, please post them at http://www.msextra.com The full forum rules are here: Forum Rules, be sure to read them all regularly.
Read the manual to see if your question is answered there before posting. If you have questions about MS1/Extra or MS2/Extra or other non-B&G code configuration or tuning, please post them at http://www.msextra.com The full forum rules are here: Forum Rules, be sure to read them all regularly.
-
rb26dett