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-   -   Starting engine without O2 sensors connected (https://67-72chevytrucks.com/vboard/showthread.php?t=681721)

Tilt 09-08-2015 10:31 PM

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?

LockDoc 09-08-2015 11:25 PM

Re: Starting engine without O2 sensors connected
 
Quote:

Originally Posted by Tilt (Post 7302870)
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?


I test drove mine without them installed. No exhaust at all just headers....

LockDoc

Custom 68 09-09-2015 10:50 AM

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.

Mayfield 09-09-2015 11:12 AM

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.

Tilt 09-09-2015 08:42 PM

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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