Flapper Valve Question - Ducati.ms

Crank1000 · Oct 29th, 2009, 6:21 pm

Sorry, I know this has been asked and answered to DEATH, but I keep reading conflicting information. I have a Termi 2-1-2 slipon, and currently installing a LV cat elim. I'm trying to figure out how to deal with the flapper valve on the midpipe. Some say just pull the cables (I have a DP full exhaust ECU as well), some say drill it out and have a muffler shop weld a patch, some say just unplug it. What is the preferred method of bypassing it? My least favorite choice is to cut and weld btw... Thanks.

Kinkykelly · Oct 29th, 2009, 9:48 pm

I vote for installing a set of Zard collectors. I did that on mine and then pulled the servo out as well.
I runs great. And the sound is really good as well.

-KK

Crank1000 · Oct 29th, 2009, 9:53 pm

That has crossed my mind, but I got a smokin' deal on the LVs.

**CDONA** · Oct 29th, 2009, 11:43 pm

I believe the 308b ECU is programmable to disable the flapper and 02 sensor.

motopix · Oct 30th, 2009, 12:09 am

Quote:

Originally Posted by Kinkykelly

I vote for installing a set of Zard collectors. I did that on mine and then pulled the servo out as well.
I runs great. And the sound is really good as well.

-KK

Did you fab up that heat shield? Do tell.

Crank1000 · Oct 30th, 2009, 1:18 am

Quote:

Originally Posted by CDONA

I believe the 308b ECU is programmable to disable the flapper and 02 sensor.

Sure, I understand that much, but I'm curious about the physical disabling of the flapper. There are a few different ways of turning it of. I think the programming of the ecu only allows for the engine light to stay off.

webspoke · Oct 30th, 2009, 8:26 am

Pulling the cables and making some stops on the servo motor work well. The valve stays spring loaded open once the cables are pulled. I drilled and tapped holes for a couple of small bolts in the servo motor to act as stops. The servo will cycle, hit the stops, and be happy, no CEL lights.