Thanks LGO, Fuel is spot on - and fuel values in the neighboring cells are similar to the ones involved in the bucking. WBO2 shows 14.7 there and in the vicinity. The more I think about it, I'm starting to think it's got to be something with the fuel cut rather than general fuel settings. -Chuck
On Mon, Jun 13, 2011 at 9:06 PM, <[email protected]> wrote: > I'm not familiar with the Obiwan as I have the standard link for FMII, but > if your Link has the capability to adjust the overall or main fuel setting > (Man! I hate it when I can't remember the term!) then I'd suggest dropping > the value by 3 to 5 points. You may be just a bit too rich at 1900 RPM. > > I've got a turbo'd 97 with Obiwan Link. It's been a long time since I did > any Link tuning, so I'm a bit rusty. > This is not a new issue, just one that I'm finally getting around to > dealing with. > > When coasting at slow speeds - parking lot speeds - there is a bucking at > 1900rpm. It's pretty significant in lower gears. > > The TPS appears to be adjusted correctly, there is the * in the keypad > display when the throttle is closed. > relevant ignition and fuel zones are set fairly close to each other. > > I'm guessing that 1900rpm is where the fuel gets turned back on to return > to idle... and it happens abruptly enough, and there's enough driveline > lash, that it ends up setting up a vicious circle with the bucking. > > What do you guys think? Any easy fix? > > > > > > -----Original Message----- > From: Chuck Wills <[email protected]> > To: [email protected] > Sent: Mon, Jun 13, 2011 7:13 pm > Subject: diagnose bucking on Link'd 97 > > I've got a turbo'd 97 with Obiwan Link. It's been a long time since I did > any Link tuning, so I'm a bit rusty. > This is not a new issue, just one that I'm finally getting around to > dealing with. > > When coasting at slow speeds - parking lot speeds - there is a bucking at > 1900rpm. It's pretty significant in lower gears. > > The TPS appears to be adjusted correctly, there is the * in the keypad > display when the throttle is closed. > relevant ignition and fuel zones are set fairly close to each other. > > I'm guessing that 1900rpm is where the fuel gets turned back on to return > to idle... and it happens abruptly enough, and there's enough driveline > lash, that it ends up setting up a vicious circle with the bucking. > > What do you guys think? Any easy fix? > > -Chuck > > _______________________________________________ > Miatapower mailing > [email protected]http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower > >
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