VSS 155 mph Off= N2O, VTS,RVS,BC Duty

K-Series Programmable ECU installation questions / support issues
sass
Posts: 109
Joined: Mon Oct 06, 2008 5:07 am
Location: Evropa-Estonia-Tallinn

VSS 155 mph Off= N2O, VTS,RVS,BC Duty

Post by sass »

Hondata
Have you ever had the problem when speed sensor turns off after car reaches 250km/h? ( 155 mph)

Image

My speed sensor 78410-S5T-901
What could be a solution changing to some alternative more reliable sensor?
Thank
Attachments
vss-off.kdl
(1017.92 KiB) Downloaded 115 times
Cr-v RD8+K24A2turbo+Kpro V4 prb+NPR3/6Speed+ТС+ HFS4 v3.2.
DynoWheel = 472kW / 589 N.m
HRX One Mile Challenge = Max Speed 282km
Known as Sniper

User avatar
Hondata
Site Admin
Posts: 9024
Joined: Thu Aug 15, 2002 12:13 pm
Location: Torrance, CA
Contact:

Re: VSS 155 mph Off= N2O, VTS,RVS,BC Duty

Post by Hondata »

The speed sensor will only read to 255 kph (internal limitation of the ECU), but it should not switch back to 0.
Hondata

sass
Posts: 109
Joined: Mon Oct 06, 2008 5:07 am
Location: Evropa-Estonia-Tallinn

Re: VSS 155 mph Off= N2O, VTS,RVS,BC Duty

Post by sass »

I understand.

What might be an idea?

Image
Cr-v RD8+K24A2turbo+Kpro V4 prb+NPR3/6Speed+ТС+ HFS4 v3.2.
DynoWheel = 472kW / 589 N.m
HRX One Mile Challenge = Max Speed 282km
Known as Sniper

User avatar
Hondata
Site Admin
Posts: 9024
Joined: Thu Aug 15, 2002 12:13 pm
Location: Torrance, CA
Contact:

Re: VSS 155 mph Off= N2O, VTS,RVS,BC Duty

Post by Hondata »

What sort of speed sensor is it? The final drive or 3rd gear?
Hondata

sass
Posts: 109
Joined: Mon Oct 06, 2008 5:07 am
Location: Evropa-Estonia-Tallinn

Re: VSS 155 mph Off= N2O, VTS,RVS,BC Duty

Post by sass »

My speed sensor 78410-S5T-901
Image
My gear NPR3
1
3.226
2
2.130
3
1.517
4
1.212
5
0.972
6
0.780
final drive
4.105
Image

Speedometer Drive
41312-PE6-310
Honda CTR JDM 4.764


Сar used in races on the mile
https://www.facebook.com/revSpeed.eu
Cr-v RD8+K24A2turbo+Kpro V4 prb+NPR3/6Speed+ТС+ HFS4 v3.2.
DynoWheel = 472kW / 589 N.m
HRX One Mile Challenge = Max Speed 282km
Known as Sniper

User avatar
Hondata
Site Admin
Posts: 9024
Joined: Thu Aug 15, 2002 12:13 pm
Location: Torrance, CA
Contact:

Re: VSS 155 mph Off= N2O, VTS,RVS,BC Duty

Post by Hondata »

The next step is to try another speed sensor.
Hondata

sass
Posts: 109
Joined: Mon Oct 06, 2008 5:07 am
Location: Evropa-Estonia-Tallinn

Re: VSS 155 mph Off= N2O, VTS,RVS,BC Duty

Post by sass »

Hondata wrote:The next step is to try another speed sensor.
Hello hondata,

still have the same problem with speed sensor: i have changed 2 sensors but still do not work propeply.

2015
Speedometer correction 12%
1 race
Image

2 race
Image

2016
http://www.onemile.ee/?lang=en&page=res ... 2016&acm=1
New gear
Speedometer correction 9%
1 race
Image

2 race
Image

https://www.facebook.com/OneMileChallenge/
Cr-v RD8+K24A2turbo+Kpro V4 prb+NPR3/6Speed+ТС+ HFS4 v3.2.
DynoWheel = 472kW / 589 N.m
HRX One Mile Challenge = Max Speed 282km
Known as Sniper

User avatar
Hondata
Site Admin
Posts: 9024
Joined: Thu Aug 15, 2002 12:13 pm
Location: Torrance, CA
Contact:

Re: VSS 155 mph Off= N2O, VTS,RVS,BC Duty

Post by Hondata »

We've run multiple vehicles over 255 kph and the speed usually pegs at 255 kph. I would consider raising the front off the ground and running it in top gear to see if the problem is load or speed dependent.
Hondata

sass
Posts: 109
Joined: Mon Oct 06, 2008 5:07 am
Location: Evropa-Estonia-Tallinn

Re: VSS 155 mph Off= N2O, VTS,RVS,BC Duty

Post by sass »

I would consider raising the front off the ground and running it in top gear to see if the problem is load or speed dependent.
can you explain?
Thank
Cr-v RD8+K24A2turbo+Kpro V4 prb+NPR3/6Speed+ТС+ HFS4 v3.2.
DynoWheel = 472kW / 589 N.m
HRX One Mile Challenge = Max Speed 282km
Known as Sniper

User avatar
Hondata
Site Admin
Posts: 9024
Joined: Thu Aug 15, 2002 12:13 pm
Location: Torrance, CA
Contact:

Re: VSS 155 mph Off= N2O, VTS,RVS,BC Duty

Post by Hondata »

Pick a place where the neighbors will not complain. If you are 4WD then you'll need to disconnect the rear driveshaft. Jack up the front of the car and support the lower arms so that the axles are straight (to keep the CVs happy). Put in top gear and run then engine to 260 kph. If you're close to redline at that speed then I'd be a little careful as the engine is less happy at high rpm under light load than full load.
Hondata

sass
Posts: 109
Joined: Mon Oct 06, 2008 5:07 am
Location: Evropa-Estonia-Tallinn

Re: VSS 155 mph Off= N2O, VTS,RVS,BC Duty

Post by sass »

Sorry.
I am not crazy.
I will think about it on the dyno.
Cr-v RD8+K24A2turbo+Kpro V4 prb+NPR3/6Speed+ТС+ HFS4 v3.2.
DynoWheel = 472kW / 589 N.m
HRX One Mile Challenge = Max Speed 282km
Known as Sniper

sass
Posts: 109
Joined: Mon Oct 06, 2008 5:07 am
Location: Evropa-Estonia-Tallinn

Re: VSS 155 mph Off= N2O, VTS,RVS,BC Duty

Post by sass »

Hondata
I'm sorry for the delay
I have no answers

I know that this is not a problem speed sensor. What frequency (kHz) you are using for the speed readings?
Image

Image
Attachments
tes2.kdl
(197.28 KiB) Downloaded 75 times
tes1.kdl
(53.78 KiB) Downloaded 57 times
Cr-v RD8+K24A2turbo+Kpro V4 prb+NPR3/6Speed+ТС+ HFS4 v3.2.
DynoWheel = 472kW / 589 N.m
HRX One Mile Challenge = Max Speed 282km
Known as Sniper

User avatar
Spunkster
Site Admin
Posts: 18434
Joined: Fri Sep 20, 2002 5:06 pm
Location: Hondata
Contact:

Re: VSS 155 mph Off= N2O, VTS,RVS,BC Duty

Post by Spunkster »

Post your calibration as well

sass
Posts: 109
Joined: Mon Oct 06, 2008 5:07 am
Location: Evropa-Estonia-Tallinn

Re: VSS 155 mph Off= N2O, VTS,RVS,BC Duty

Post by sass »

ok
The speed sensor will only read to 255 kph (internal limitation of the ECU), but it should not switch back to 0.
it looks weird
https://www.youtube.com/watch?v=bjVjWMT ... e=youtu.be
Attachments
cr-v-k24a2.kal
(130.52 KiB) Downloaded 76 times
Cr-v RD8+K24A2turbo+Kpro V4 prb+NPR3/6Speed+ТС+ HFS4 v3.2.
DynoWheel = 472kW / 589 N.m
HRX One Mile Challenge = Max Speed 282km
Known as Sniper

sass
Posts: 109
Joined: Mon Oct 06, 2008 5:07 am
Location: Evropa-Estonia-Tallinn

Re: VSS 155 mph Off= N2O, VTS,RVS,BC Duty

Post by sass »

Hondata
how it's going with that issue
Cr-v RD8+K24A2turbo+Kpro V4 prb+NPR3/6Speed+ТС+ HFS4 v3.2.
DynoWheel = 472kW / 589 N.m
HRX One Mile Challenge = Max Speed 282km
Known as Sniper

Post Reply