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Unread 08-30-2014, 02:14 AM   #1
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1988 YJ Wrangler 
Join Date: Feb 2014
Location: Pasadena, Maryland
Posts: 69
Post Nutter Questions

I have finished the nutter bypass on my 88 YJ. Unplugged and remove the ECU afterwards, started the Jeep. Never ran better than it does now, amazing. I went ahead and removed the damn computer altogether and traced and removed all wires that were connected to it. I still have to splice together any bundles that I had to cut to get the computer wire out of the mix. Then start it again to see if all is working.

Should I leave the O2 sensors in the exhaust manifold and the top of the tail pipe fitting in or remove them and plug the holes. The computer was wired to them therefore I am assuming with a truly mechanical set up they do nothing.

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Unread 08-30-2014, 06:38 AM   #2
Web Wheeler
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1988 YJ Wrangler 
Join Date: Jun 2013
Location: Whittier, CA
Posts: 1,131
Leave it or plug it, doesn't matter. It isn't connected to anything so it won't matter.
Dodge did not build my Jeep.
1988 Wrangler,4.2L I-6, Howell EFI JP-1, 5 Speed Peugeot, Zone 2.5" lift + 1/2" booms, BFG 31 x 10.5, Bestop.
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Unread 08-30-2014, 07:28 AM   #3
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1990 CJ7 
Join Date: Nov 2008
Location: Ga
Posts: 5,151
The O2 sensor can still be used with a meter to read A/F ratio on your carb. Even if you don't use it, it hurts nothing just to leave the sensor in the bung.
418 miles on 19 gallons of gas. Can't beat the BBD !
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Unread 08-30-2014, 08:46 AM   #4
Mike Romain
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1986 CJ7 
Join Date: Nov 2007
Location: Off the Grid in Chester Grant, Nova Scotia, Canada
Posts: 15,119
Some folks leave them to help with setting the mix. They look for .45- .6v on a meter if I remember right. Range is .1-.9 I think.

Some folks also wire the solvac to a fused powered switch so they have a manual fast idle for things like winching or boosting.
86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos: (10 new albums added Sept 16/10)
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Unread 08-30-2014, 01:56 PM   #5
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1990 YJ Wrangler 
Join Date: Jun 2008
Location: st. louis
Posts: 1,468
I have the solvac wired to a toggle switch. It's really handy for when it is very cold (below 10 degrees F) to keep the idle high until it is warmed up.
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