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How does an IACV send signals to ECU? Resistance? Paypal'ing 5 bucks if you fix my prob.

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Old 10-06-2006, 09:05 PM
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Default How does an IACV send signals to ECU? Resistance? Paypal'ing 5 bucks if you fix my prob.

I need to know what the ECU sees as an acceptable resistance from the IACV. If it does in fact read resistance.
Old 10-07-2006, 02:19 AM
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Default Re: How does an IACV send signals to ECU? Resistance? Paypal'ing 5 bucks if you fix my prob. (Atto

does not read or need resistance.

the iacv changes the amount of air bypassing the throttle body in response to a current signal from the ecm in order to maintain the proper idle speed.

what was your problem?


now paypal me 5 bucks....
Old 10-07-2006, 06:48 PM
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Default Re: How does an IACV send signals to ECU? Resistance? Paypal'ing 5 bucks if you fix my prob. (Atto

k', fixed it guys. It needs 8-15 ohms of resistance, as per the Honda FSM.
Old 10-07-2006, 06:50 PM
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Default Re: How does an IACV send signals to ECU? Resistance? Paypal'ing 5 bucks if you fix my prob. (Atto

BTW, it does need resistance. Not going to have current without resistance. Ohm's law buddy.

I = V/R

Current = Voltage divided by Resistance

resistance = 0, current = 0
Old 10-07-2006, 07:02 PM
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.. less resistance, more current flow, therefor resistance is not "necessary" for current, even though a bare wire has a true value of "1 ohm" . Current flow is simply voltage having a path to go from one high point to a low point through a conductor. glad you found your problem ...buddy.. though if your referring to 0 reisistance as in a broken wire then i guess in a way you are right..


Modified by jdeemseerx at 4:19 AM 10/8/2006
Old 10-07-2006, 09:22 PM
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Default Re: How does an IACV send signals to ECU? Resistance? Paypal'ing 5 bucks if you fix my prob. (Atto

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Attoir &raquo;</TD></TR><TR><TD CLASS="quote">BTW, it does need resistance. Not going to have current without resistance. Ohm's law buddy.

I = V/R

Current = Voltage divided by Resistance

resistance = 0, current = 0</TD></TR></TABLE>

i knew that, but... you stated:
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Attoir &raquo;</TD></TR><TR><TD CLASS="quote">I need to know what the ECU sees as an acceptable resistance from the IACV. If it does in fact read resistance.</TD></TR></TABLE>
Old 10-07-2006, 09:52 PM
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Default Re: (jdeemseerx)

A bare wire is going to have a resistance of less than 1 ohm. It depends on many factors; gauge, stranded or single, length, material, etc.

In this case, the IACV is simply a solenoid. A solenoid is made of a coil of wire and a plunger. It is for testing purposes an inductor. The coil of wire does have a resistance.


Also a broken wire or an open has an infinite resistance, not zero.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Attoir &raquo;</TD></TR><TR><TD CLASS="quote">BTW, it does need resistance. Not going to have current without resistance. Ohm's law buddy.

I = V/R

Current = Voltage divided by Resistance

resistance = 0, current = 0</TD></TR></TABLE>

Go take some more math buddy. A value divided by zero is infinity, not zero.

It is because if the following:

f(s) = 1/s

as "s" goes to zero, f(s) goes to infinity.

&gt;&gt;&gt;&lt;&lt;&lt;
Old 10-07-2006, 10:38 PM
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Default Re: (F20Cteg)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by F20Cteg &raquo;</TD></TR><TR><TD CLASS="quote">A bare wire is going to have a resistance of less than 1 ohm. It depends on many factors; gauge, stranded or single, length, material, etc.

In this case, the IACV is simply a solenoid. A solenoid is made of a coil of wire and a plunger. It is for testing purposes an inductor. The coil of wire does have a resistance.


Also a broken wire or an open has an infinite resistance, not zero.

Go take some more math buddy. A value divided by zero is infinity, not zero.

It is because if the following:

f(s) = 1/s

as "s" goes to zero, f(s) goes to infinity.

&gt;&gt;&gt;&lt;&lt;&lt;</TD></TR></TABLE>

well put. i dont think he has five bucks...

rule of thumb for solenoids = resistance &lt; 40 ohms
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