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09-08-2015, 10:31 PM | #1 |
Registered User
Join Date: Jul 2014
Location: Dayton, TX
Posts: 335
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Starting engine without O2 sensors connected
I'm finishing up a few last things to be able to try and start the engine up for the first time. I went to hook up my O2 sensors and the BP Automotive harness has different connections than my sensors do. I've sent him a message but haven't gotten a responce yet and haven't had time to give him a call yet. Can I start the engine without them and just let it idle?
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'83 Silverado Step Side '85 GMC short bed. '86 Chevy Step Side Custom Deluxe LQ9/4L80 swap (SOLD) |
09-08-2015, 11:25 PM | #2 | |
The Older Generation
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,781
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Re: Starting engine without O2 sensors connected
Quote:
I test drove mine without them installed. No exhaust at all just headers.... LockDoc
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Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
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09-09-2015, 10:50 AM | #3 |
Registered User
Join Date: Nov 2001
Location: Springfield, MO
Posts: 2,939
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Re: Starting engine without O2 sensors connected
I dont believe they are going to be used during the "warm up" on initial start so yes you will be ok.
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Dave 1968 Custom Chevy with turbo charged 5.3 gen III 4l80e swap 1967-71 GMC 3/4 ton long step 4x4 (not sure what year exactly?) "A good friend will bail you out of jail...but a true friend will be sitting next to you saying "that was frekin awesome". "If it doesn't fit force it...If it breaks then it needed to be replaced anyway!" |
09-09-2015, 11:12 AM | #4 |
Registered User
Join Date: Aug 2013
Location: Murray, Kentucky
Posts: 38
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Re: Starting engine without O2 sensors connected
John @ speartech told me not to use the 02 sensors until I had a full exhaust. Something along the lines that it will be reading too much of the air and not whats coming out of the headers.
I put a few miles on mine with open headers & the 02 sensors hooked up. My passenger sensor went bad shortly afterwards, not sure if that was the reason or not. |
09-09-2015, 08:42 PM | #5 |
Registered User
Join Date: Jul 2014
Location: Dayton, TX
Posts: 335
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Re: Starting engine without O2 sensors connected
Thanks guys. I just ordered a set of the Bosch 13026 sensors with the connections I needed. The bad news is it looks like I won't be able to start it till this coming Tuesday. I can't find anyone with the plug wires I'm looking for (Taylor 409 Race-Fit Pro Race Spark Plug Wires 79614) that can have them here before then.
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'83 Silverado Step Side '85 GMC short bed. '86 Chevy Step Side Custom Deluxe LQ9/4L80 swap (SOLD) |
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