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09-27-2018
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#11 |
 
Join Date: Dec 2007
Location: NYC
Posts: 1,189
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Re: Hesitation than cleared itself
Might be a bad O2 but that will throw a code check engine light come on at all?
Sent from my iPhone using ZR-1 Net Registry
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90 Chevy ZR1 LPE #2315 'SOLD' 90 Chevy ZR1 LPE #2774 'SOLD' 91 Chevy ZR1 Callaway aerobody 91 Chevy ZR1 #1512 91 Chevy ZR1 #951 95 Chevy ZR1 #338 'SOLD' 91 BMW 850i 94 BMW 850csi 95 BMW 850csi 94 Lotus Esprit S4 07 Benz CLS550 06 BMW M5 "SOLD" |
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09-27-2018
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#12 | |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,709
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Re: Hesitation than cleared itself
Quote:
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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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09-27-2018
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#13 |
 Join Date: Nov 2014
Location: Brooklyn ny
Posts: 1,045
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Re: Hesitation than cleared itself
George....No code ...Had a bad one last year and swapped out..
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09-28-2018
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#14 |
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Join Date: Dec 2014
Location: Long Island, NY
Posts: 295
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Re: Hesitation than cleared itself
Fully warmed up, turn on headlamps, come to a stop and wait to see if idle will slow and SES light illuminates. Also can implement additional load of the Air Conditioning running (blower motor max setting 10). If it acts like it wants to stall, you probably have my custom tune installed on your car...lol.
I've become immune to this occasional condition due to being slightly lean at idle...no big deal.
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1990 ZR-1 #1587 1990 ZR-1 #1727 |
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09-28-2018
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#15 | |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,709
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Re: Hesitation than cleared itself
Quote:
His car is a 91 so ur tune wouldn’t work unless someone “translated” it for a 91.
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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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09-28-2018
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#16 |
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Join Date: Feb 2011
Location: San Marcos CA
Posts: 1,802
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Re: Hesitation than cleared itself
I had encountered poor driveability when the weather changed and I was still on winter blend calif gas when we had an 80 degree warm spell in February. Run through a tank before you spend any money
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09-28-2018
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#17 |
 
Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,493
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Re: Hesitation than cleared itself
I agree that fueling may be @ issue. Scanning the ALDL port will give you a pretty good idea how it is running. (O2s don't always throw a code - at least not right away. They can be failing or getting weak long before failing completely to cause a code (I've found).
Besides O2 function, you will be able to get a dynamic evaluation of ALL the sensors: a good place to start!  I don't want to start speculating until we see what the scanner says first. JMO.
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Good carz, good food, good friendz = the best of timez! 90 #1202 "FBI" top end ported & relieved Cam timing by "Pete the Greek" Sans secondaries Chip & dyno tuning by Haibeck Automotive SW headers, X-pipe, MF muffs Former Secretary, ZR-1 Net Registry |
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09-28-2018
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#18 |
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Join Date: Nov 2014
Location: Brooklyn ny
Posts: 1,045
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Re: Hesitation than cleared itself
Thanks guys....Not too familiar with scanners and such.....Will run this by my guy tommorow or the following week....Will keep everyone posted on the outcome..Which in turn may help fellow members,if such a problem arises with others...
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09-28-2018
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#19 |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,709
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Re: Hesitation than cleared itself
Was ur MAT sensor relocated?
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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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09-28-2018
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#20 |
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Join Date: Dec 2014
Location: Long Island, NY
Posts: 295
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Re: Hesitation than cleared itself
John, I have Vetronics Tech1A scanner with master cartridge updated...and extra O2 sensors.
Let me know if I can be of assistance to you.
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1990 ZR-1 #1587 1990 ZR-1 #1727 Last edited by George Maz; 09-28-2018 at 03:40 PM. |
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