Sportster 02 sensor

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Sep 9, 2013 | 11:37 AM

rich8899

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6th Gear

Joined: Sep 2013

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From: Tennessee

Sportster 02 sensor

Need some input.

I have an 07' XL 1200C. Picked it up a year ago and the throttle response has always been jerky. Nothing like my old EVO Road King or Fatboy. Took it to a dealer and the $100 response/answer was, "That's the way they're supposed to run. You're just not used to a Sportster. But we did change one of your spark plugs."

I made sure I didn't have an exhaust leak and replaced the small exhaust gaskets on the stock mufflers. That helped a little.

I've been reading that the 07's have a bad throttle response and can be corrected by eliminating the 02 sensor. Has anyone experienced the same problem and is the 02 eliminator the fix?

Thanks
Rich

Sep 9, 2013 | 08:16 PM

parabellum_9x19

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Joined: Aug 2011

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From: Central Illinois

If you remove the O2 sensor, I think the bike reverts back to a table for all operation, which means it could run really out of whack, if it runs.

Sep 9, 2013 | 08:34 PM

Dusty Bones

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Joined: Jun 2013

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From: MI

Try cruising in a lower gear. Throwing some revs at it will eliminate almost all of that surging on a cold engine for short trips.

Sep 10, 2013 | 06:41 AM

Thumper26

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Joined: May 2005

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From: A barrier island in NJ

'07 was the first year for EFI on the Sportster, and that's where my money is on your problem. Whether it be the o2 sensor or MAP, I put the cause on the EFI not mixing/functioning properly.

Sep 10, 2013 | 08:00 AM

rich8899

Thread Starter

6th Gear

Joined: Sep 2013

Posts: 12

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From: Tennessee

02 sensor

Quote:

Originally Posted by parabellum_9x19

If you remove the O2 sensor, I think the bike reverts back to a table for all operation, which means it could run really out of whack, if it runs.

I know that the 02 sensors are removed or bypassed for most aftermarket exhaust systems. Not sure if the ecm needs to be re-mapped..

Rich

Sep 10, 2013 | 08:04 AM

rich8899

Thread Starter

6th Gear

Joined: Sep 2013

Posts: 12

Likes: 0

From: Tennessee

Efi

Quote:

Originally Posted by Thumper26

'07 was the first year for EFI on the Sportster, and that's where my money is on your problem. Whether it be the o2 sensor or MAP, I put the cause on the EFI not mixing/functioning properly.

I'm inclined to agree with you, I've read where throttle response is a problem on the 07's and if that was the first EFI year on that engine, it may be a design problem. The dealer never said anything about it when I took it to them with the problem.

Thanks to all for the input..
Appreciate it.

Rich