Ray,
When I'm coasting in gear with foot off the gas, the * does appear on
the screen.
I haven't adjusted Z0 yet, but I'll try it tonight.
thanks!
chuck
On 6/15/2011 7:05 PM, Ray Ayala wrote:
Have you confirmed that the idle * is *_not_* coming on while this is
happening? (it shouldn't be).
Have you played with Z0 ? A typical setting would be about 3 less
than you normal MAP at idle.
----- Original Message -----
*From:* Chuck Wills <mailto:[email protected]>
*To:* [email protected] <mailto:[email protected]> ;
[email protected] <mailto:[email protected]>
*Sent:* Monday, June 13, 2011 6:52 PM
*Subject:* Re: diagnose bucking on Link'd 97
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]
<mailto:[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]
<mailto:[email protected]>>
To: [email protected] <mailto:[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
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