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02-10-2018
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#21 | |
 Join Date: Aug 2015
Location: Magnolia, Texas
Posts: 884
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Re: High searching Idle
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Sent from my XT1585 using ZR-1 Net Registry mobile app |
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02-10-2018
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#22 | |
 
Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
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Re: High searching Idle
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H
__________________
90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold. |
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02-10-2018
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#23 |
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Join Date: Aug 2015
Location: Magnolia, Texas
Posts: 884
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Re: High searching Idle
Looked at it Hans. No issues. I'll recheck to make sure hose is good.
Sent from my XT1585 using ZR-1 Net Registry mobile app |
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02-10-2018
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#24 |
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Join Date: Feb 2011
Location: San Marcos CA
Posts: 1,802
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Re: High searching Idle
well, since you have eliminated the outside hose connections, it sure sounds like the hard plastic curly-q under plenum hose has popped off. It goes to the gas tank purge solenoid. The leak is big enough to idle at 1200 rpm as you described. My car came like that and was the reason for my first plenum pull.
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02-10-2018
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#25 | |
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Join Date: Aug 2015
Location: Magnolia, Texas
Posts: 884
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Re: High searching Idle
Quote:
Sent from my XT1585 using ZR-1 Net Registry mobile app |
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02-10-2018
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#26 |
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Join Date: Aug 2015
Location: Magnolia, Texas
Posts: 884
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Re: High searching Idle
Found it.. unfortunately. Borescope clearly shows the hose on the curved pipe under the TPS going to the gas tank purge solenoid is off. Backfire must have blown it off. Will put hose clamps on these hoses when im in there this time.. happy I found it and glad it's not the TB. Well, needed to pull plenum and IH's to Port them anyway!
Sent from my XT1585 using ZR-1 Net Registry mobile app |
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02-10-2018
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#27 | |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,708
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Re: High searching Idle
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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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02-10-2018
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#28 |
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Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
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Re: High searching Idle
Glad you found it, Had to be something related to the backfire. Unlikely the throttle body would go that suddenly.
H 
__________________
90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold. |
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02-10-2018
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#29 | |
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Join Date: Aug 2015
Location: Magnolia, Texas
Posts: 884
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Re: High searching Idle
Quote:
Sent from my XT1585 using ZR-1 Net Registry mobile app |
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02-10-2018
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#30 | |
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Join Date: Aug 2015
Location: Magnolia, Texas
Posts: 884
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Re: High searching Idle
Quote:
Sent from my XT1585 using ZR-1 Net Registry mobile app |
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