PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

? about wideband hookup

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Old Jan 21, 2007 | 11:15 PM
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From: DE La Ware
Default ? about wideband hookup

I would like to get a wideband O2 / tuning software before I do any more mods. Im wondering about the wideband hookup at the exhaust. I know its a wideband o2 but can I hook it up in a precat position instead of a narrowband? And does this effect the signals the PCM receives?

Thanks for your help,

Erik
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Old Jan 21, 2007 | 11:23 PM
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You could use the wideband to replace one narrowband, but it is far better to have an extra bung welded into your exhaust.
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Old Jan 21, 2007 | 11:27 PM
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Originally Posted by gametech
You could use the wideband to replace one narrowband, but it is far better to have an extra bung welded into your exhaust.
I agree. It's not that hard to do.
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Old Jan 21, 2007 | 11:31 PM
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From: DE La Ware
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Ok thanks guys. Is it better to get it placed on the driver or pass. side of the Y? Or try to get it after the 2 come together before the cats?
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Old Jan 21, 2007 | 11:38 PM
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I put mine after the y, so it would get a combined reading of both banks.
If you are going to do it yourself, Harbor Freight makes a set of drill bits called step drills, that make drilling a perfectly round hole easy.

Last edited by koolaid_kid; Jan 21, 2007 at 11:44 PM.
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Old Jan 22, 2007 | 11:52 AM
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Im sorry I wasnt thinking. Its gonna have to go after the cats. Will this affect it any?
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Old Jan 22, 2007 | 12:20 PM
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yes, putting it after the cats can affect it, by how much its hard to tell...could be .1 could be .5
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