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12-04-2013
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#1 |
 Join Date: Jul 2009
Location: Texas
Posts: 793
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IAC zeroing
I installed a new IAC motor a while back trying to correct a idle hunting issue a while back it didn't help much. A friend of mine said I need to zero my IAC but didn't remember how. Dose anyone have any advice
Dave 
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12-16-2013
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#2 | |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,708
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Re: IAC zeroing
Quote:
Whenever you unplug the IAC, you need to do reset procedure. Start the motor w your foot on accelerator so it rvs to 2000rpm or so, then shut it down. Then restart normally.
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[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
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12-16-2013
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#3 |
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Join Date: Aug 2013
Location: ridgecrest ca
Posts: 104
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Re: IAC zeroing
maybe a dumb ? but would you have to reset it then when you pull the neg battery terminal also ?????
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12-16-2013
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#4 |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,708
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Re: IAC zeroing
No. Just when you pull the electrical connection on the IAC as in when you replace it or clean it.
__________________
[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
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12-16-2013
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#5 |
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Join Date: Jul 2009
Location: Texas
Posts: 793
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Re: IAC zeroing
I found my hunting problem. And it was interesting to say the least. Before I changed my injectors five months ago it hunted. And before I changed my fuel pumps a year ago it had a hunt. But recently it was running badly with a stumble and then eventually didn't start at all. I noticed it had 10 pounds of pressure at the rail. So I checked everything and ended up pulling the pumps only to find. The original plastic clamps that I reused were allowing pressure to leak off and one had finally loosened enough to to starve the engine of fuel. Once I replaced all the plastic clamps with metal clamps the car ran so much better in fact better than it ever has even after I change the injectors. And once the computer had a few miles to adjust the hunting was gone.
Dave |
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Linear Mode
