2004 ultra classic O2 sensor?

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Oct 31, 2010 | 12:39 AM

flyer91

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2004 ultra classic O2 sensor?

I'm trying to find out if the '04 UC had an O2 sensor.
My friend just bought one that has V&H 2-to1 on it, and there is no sensor so I'm assuming they either didn't have one, or the ECM has been flashed for the V&H exhaust ..... if that is even possible. (???)
We haven't had the covers off to see if it has a tuner on it, and will do that soon, I just wanted to float the question to see if anyone knows anything about this.

Oct 31, 2010 | 12:41 AM

DR. V-TWIN

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From: Los Angeles, CA

No 02 sensors on 04's. Period.

Drew

Oct 31, 2010 | 06:51 AM

maineultraclassic

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From: Biddeford, Maine

No O2 sensors until '07 or '08. There is no dealer flash for the ECM for any other exhaust then SE products, even then it's not worth the money for the flash. Steve

Oct 31, 2010 | 08:40 AM

dirtracin23

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From: Central IL

'07 was the first year that the MoCo employed the use of O2 sensors in the exhaust headers.

Oct 31, 2010 | 08:47 AM

bigdumbnoitall00

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no sensors, unless someone added a thundermax tuner.

Oct 31, 2010 | 08:47 AM

dawg

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From: Vermont

If indeed it is EFI and not carb, the ECM could have been flashed or there could be a tuner. If there is no tuner attached to the bike, your bud still could have a SERT but the module may not have been with the bike. Albeit the dealer flashes are for SE products as Steve stated, many dealers have flashed bikes for other pipes and sometimes they work and sometimes they don't.