IPD sale XeMODeX - Experts in Volvo Electronics

Get email notification of topic replies. Log in or register (free). Amazon Link Buy anything with this and it helps MVS!

Troubleshooting shift flare with the help of an Arduino Due

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive "P2" platform cars.

2001 - 2007 V70
2004 - 2007 V70 R
2001 - 2007 XC-70
2001 - 2009 S60
2003 - 2007 S60 R

Post Reply
User avatar
vtl
Posts: 1941
Joined: Thu Aug 16, 2012 1:35 pm
Year and Model: 2005 XC70
Location: Boston
Has thanked: 3 times
Been thanked: 75 times

Troubleshooting shift flare with the help of an Arduino Due

Post by vtl »

Flare is when RPM spikes, not drops (reduced torque window is gone, engine starts to push, but the clutches in transmission are not engaged yet). What you see and feel is a torque converter lockup: starting from 3d gear transmission first shifts with open TC then a second or two later it gradually locks the converter (SLU modulates the lock) so it has a direct gear now, without torque transferred through fluid. It does it in 3d, 4th and 5th gears.

It's best to display gear, SLT/SLS/SLU and S1-5 solenoids in VIDA when you diagnose your transmission. VIDA has a limitation of how many of them can be displayed at the same time. My "mini-DiCE" does not have that limitation, you can clearly see what transmission is doing:

Image

And a ton of other information from ECM, DEM, CCM, REM.
05 XC70 265k, 16 XC60 45k, 19 Tundra 5k
User avatar
oragex
Posts: 5022
Joined: Fri May 24, 2013 6:20 am
Year and Model: S60 2003
Location: Canada
Has thanked: 99 times
Been thanked: 297 times
Contact:

Re: Genuine Volvo ATF is NOT Mobil 3309...

Post by oragex »

.
What is this display ?
Image
User avatar
vtl
Posts: 1941
Joined: Thu Aug 16, 2012 1:35 pm
Year and Model: 2005 XC70
Location: Boston
Has thanked: 3 times
Been thanked: 75 times

Re: Genuine Volvo ATF is NOT Mobil 3309...

Post by vtl »

oragex wrote: Tue Apr 30, 2019 1:44 pm What is this display ?
My hobby project: https://github.com/vtl/volvo-ddd/
05 XC70 265k, 16 XC60 45k, 19 Tundra 5k
User avatar
oragex
Posts: 5022
Joined: Fri May 24, 2013 6:20 am
Year and Model: S60 2003
Location: Canada
Has thanked: 99 times
Been thanked: 297 times
Contact:

Re: Genuine Volvo ATF is NOT Mobil 3309...

Post by oragex »

This looks great. Would make a nice item to sell on Ebay & Volvo forums

oragex wrote: Tue Apr 30, 2019 1:44 pm .
What is this display ?
Image
User avatar
matthew1
Site Admin
Posts: 10735
Joined: Sat Sep 14, 2002 11:03 am
Year and Model: 850 T5, 1997
Location: Denver, Colorado, US
Has thanked: 649 times
Been thanked: 273 times

Re: Troubleshooting shift flare with the help of an Arduino Due

Post by matthew1 »

PSA -> If you want one of these, follow this Arduino Due for Volvo P80 topic.
Help keep MVS on the web -> click sponsors' links here on MVS when you buy from them.
Also -> Amazon link
. Click that when you go to buy something on Amazon and MVS gets a kickback.

1997 850 T5, MSD ignition coil, Hallman manual boost controller, injectors, R bumper, OMP strut brace [gone]
2004 V70 R [gone]

Image
User avatar
E Showell
Posts: 3178
Joined: Thu Oct 16, 2008 4:00 pm
Year and Model: V70R '06 AWD Auto
Location: Long Valley, N.J.
Has thanked: 35 times
Been thanked: 79 times

Re: Troubleshooting shift flare with the help of an Arduino Due

Post by E Showell »

Anybody done it for a P2?
'98 V70 NA FWD 5 spd, silver sand metallic (sold)
'99 V70 NA FWD Auto, dark blue (actively for sale)
'99 S70 NA FWD Auto, black (sold and resurrected -- Don't cry for me Argentina . . . )
'07 S80 3.2 FWD Auto, Barents Blue Metallic
'06 V70 R AWD Auto, Sonic Blue Metallic
'04 XC70 Ruby Red Metallic
'95 855 auto (sold)
'86 245 manual (sold)
'05 V70 T5 M (totalled)
'06 V70 FWD Auto (totalled)
User avatar
vtl
Posts: 1941
Joined: Thu Aug 16, 2012 1:35 pm
Year and Model: 2005 XC70
Location: Boston
Has thanked: 3 times
Been thanked: 75 times

Re: Troubleshooting shift flare with the help of an Arduino Due

Post by vtl »

It's for P2.
05 XC70 265k, 16 XC60 45k, 19 Tundra 5k
Post Reply
  • Similar Topics
    Replies
    Views
    Last post