Do secondary butterflies open when motor is reved in neutral?
06-17-2003, 05:07 AM
#1
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Secondaries WILL open when motor is reved in neutral!!!!!!!!!!!!!!
Secondaries do open when motor is reved past 6k on a OBD2 GSR. Probably the same for other GSR's, but I have a 98 motor.
The proof:
**right click - save as**
http://www.we-todd-did-racing....DE%3D
Sorry about the quality, that vid is from my Coolpix3100 digital camera.
Modified by Hybrid93Hatch at 9:09 AM 6/26/2003
The proof:
**right click - save as**
http://www.we-todd-did-racing....DE%3D
Sorry about the quality, that vid is from my Coolpix3100 digital camera.
Modified by Hybrid93Hatch at 9:09 AM 6/26/2003
06-17-2003, 07:10 AM
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Re: Do secondary butterflies open when motor is reved in neutral? (Hybrid93Hatch)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hybrid93Hatch »</TD></TR><TR><TD CLASS="quote">Someone said they do. Another said they don't.
The car is a 93 Cx with a 98 GSR motor (usdm) / stock OBD1 p72 ECU. I had my father get the rpm's up to about 7k and they did not open. Before I start cutting wires I would like to know if they open in neutral or only when the car is in gear.
</TD></TR></TABLE>
yes they open, I have seen the solenoid "open up" as my motor was revved, to what rpm i don't know, we were just checking to see if it was working
The car is a 93 Cx with a 98 GSR motor (usdm) / stock OBD1 p72 ECU. I had my father get the rpm's up to about 7k and they did not open. Before I start cutting wires I would like to know if they open in neutral or only when the car is in gear.
</TD></TR></TABLE>
yes they open, I have seen the solenoid "open up" as my motor was revved, to what rpm i don't know, we were just checking to see if it was working
06-17-2003, 07:29 AM
#3
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Re: Do secondary butterflies open when motor is reved in neutral? (Hybrid93Hatch)
If everything is in order they will indeed open up while the car is parked and being revved in neutral.
06-17-2003, 11:02 AM
#4
Re: Do secondary butterflies open when motor is reved in neutral? (Hybrid93Hatch)
Just have someone watch the car when you start it... the IAB will close at idle (or anything below 5800RPM). If the solenoid is getting power and the vac tank is connected right, it'll work -- and this is a great easy test.
06-17-2003, 11:26 AM
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Re: Do secondary butterflies open when motor is reved in neutral? (DaiJekBok)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DaiJekBok »</TD></TR><TR><TD CLASS="quote">Just have someone watch the car when you start it... the IAB will close at idle (or anything below 5800RPM). If the solenoid is getting power and the vac tank is connected right, it'll work -- and this is a great easy test.</TD></TR></TABLE>
I had my father rev the car up to 7k last week and I didn't see the rod move down as shown in this pic:
I'm going to give it 12v and see what happens. I think it's being grounded right now
Thanks for all the help
I had my father rev the car up to 7k last week and I didn't see the rod move down as shown in this pic:
I'm going to give it 12v and see what happens. I think it's being grounded right now
Thanks for all the help
06-17-2003, 05:48 PM
#7
Re: Do secondary butterflies open when motor is reved in neutral? (Hybrid93Hatch)
Start the car and pull that vac line off of the diaphragm and test for vacuum. If you don't have any, then it's the wiring. Try reversing polarity. Again, I'm not 100% certain, but I think OBD2 motors want 12V to activate the IAB whereas OBD1's use ground.
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06-26-2003, 03:49 AM
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Re: Do secondary butterflies open when motor is reved in neutral? (DaiJekBok)
Ok, here's a vid I took yesterday with my Nikon Coolpix3100 digital camera:
**right click - save as**
http://www.we-todd-did-racing....DE%3D
Hope it works. This is my first vid ever uploading.
**right click - save as**
http://www.we-todd-did-racing....DE%3D
Hope it works. This is my first vid ever uploading.
06-26-2003, 04:41 AM
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Re: Do secondary butterflies open when motor is reved in neutral? (B18C5-EH2)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C5-EH2 »</TD></TR><TR><TD CLASS="quote">If everything is in order they will indeed open up while the car is parked and being revved in neutral.</TD></TR></TABLE>
Yup
Yup
06-26-2003, 04:45 AM
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Re: Do secondary butterflies open when motor is reved in neutral? (VTECVillain)
I thought that the car had to be in motion for the IAB to open. The VTEC will only kick in if the car is in motion though, right?
06-26-2003, 05:06 AM
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Re: Do secondary butterflies open when motor is reved in neutral? (SpyderZEX)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SpyderZEX »</TD></TR><TR><TD CLASS="quote">I thought that the car had to be in motion for the IAB to open. The VTEC will only kick in if the car is in motion though, right?</TD></TR></TABLE>
Secondaries will open in neutral vtec will not engauge in neutral.
Secondaries will open in neutral vtec will not engauge in neutral.
06-26-2003, 12:12 PM
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Re: Do secondary butterflies open when motor is reved in neutral? (Hybrid93Hatch)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hybrid93Hatch »</TD></TR><TR><TD CLASS="quote">
Secondaries will open in neutral vtec will not engauge in neutral.</TD></TR></TABLE>
It wont engage unless you have a vafc. Then it will engage in neutral.
EVIL
Secondaries will open in neutral vtec will not engauge in neutral.</TD></TR></TABLE>
It wont engage unless you have a vafc. Then it will engage in neutral.
EVIL
06-27-2003, 04:48 AM
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Re: Do secondary butterflies open when motor is reved in neutral? (poison)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by poison »</TD></TR><TR><TD CLASS="quote">Still workin on it huh? 
I'd go to a power source A25 </TD></TR></TABLE>
Actually, the secondaries are opening. I spliced in at the power junction harness as you said. The vid a few posts up seems to be working for some and not for others. It shows the secondaries opening
I'd go to a power source A25 </TD></TR></TABLE>
Actually, the secondaries are opening. I spliced in at the power junction harness as you said. The vid a few posts up seems to be working for some and not for others. It shows the secondaries opening
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