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05-26-2008
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#31 | |
Join Date: Oct 2004
Location: Folsom CA
Posts: 1,655
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Re: Jumped the gun still having stumbling issues
Quote:
Any luck? Tom
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TomC '90ZR1 #792 Honorary Pirate [B]If it ain't FUN, you're doing something terribly WRONG. [/B] |
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05-26-2008
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#32 | |
 
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,169
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Re: Jumped the gun still having stumbling issues
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Need to drive it again. not sure if I will get a chance today
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978 |
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05-26-2008
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#33 | |
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Join Date: Oct 2004
Location: Folsom CA
Posts: 1,655
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Re: Jumped the gun still having stumbling issues
Quote:
What did you change/repair/fix/hit with hammer?  Tom
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TomC '90ZR1 #792 Honorary Pirate [B]If it ain't FUN, you're doing something terribly WRONG. [/B] |
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05-26-2008
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#34 | |
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Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,169
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Re: Jumped the gun still having stumbling issues
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978 |
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05-26-2008
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#35 | |
 
Join Date: Jul 2005
Location: Mendota Heights, MN. 55120
Posts: 984
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Re: Jumped the gun still having stumbling issues
Quote:
And did that fix the stumbing issue??
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Bob Anderson 1990 #2405 White/Gray Haibeck chip,4:09 gears,Power Effects Exhaust,5 spoke chrome,C5 brakes,49th Street rockers,K&N,Hurst,Headers,Upper & lower ported Minnesota State Director Founding Member #19 |
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05-26-2008
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#36 | |
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Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,169
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Re: Jumped the gun still having stumbling issues
Quote:
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978 |
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05-26-2008
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#37 | |
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Join Date: Jul 2005
Location: Mendota Heights, MN. 55120
Posts: 984
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Re: Jumped the gun still having stumbling issues
Quote:
 Was the problem limited just one of the sensors or both??? Sorry for all of the questions but mine is doing basically the same thing I'm getting tired of just putting in parts, at a great expense, and not fixing the problem.
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Bob Anderson 1990 #2405 White/Gray Haibeck chip,4:09 gears,Power Effects Exhaust,5 spoke chrome,C5 brakes,49th Street rockers,K&N,Hurst,Headers,Upper & lower ported Minnesota State Director Founding Member #19 |
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05-26-2008
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#38 |
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Join Date: Oct 2007
Location: lone pine and mammoth lakes ca.
Posts: 544
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Re: Jumped the gun still having stumbling issues
jeff if i can ask what were the o2 sensors acting like that caused you to ck them.? i might have an intermittent issue with my 92.
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05-26-2008
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#39 |
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Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,169
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Re: Jumped the gun still having stumbling issues
okay.. there are 2 grounds OUT of the ECM, one right, one left. both tie together to one ground lug. somewhere from the tied point to ground the line was open. I tapped a new wire in and grounded it that fixed the O2 issue.
with no ground from the ECM for the O2 s I was reading .45v ALL the time on BOTH sensors
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978 |
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05-27-2008
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#40 |
Join Date: Dec 2004
Location: Jacksonville, FL USA
Posts: 4,645
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Re: Jumped the gun still having stumbling issues
Nice catch! Kudos to ya Jeff!
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1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member |
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