Some issue with speed sensor?

[mazak]

Hi.
Recently I've been to Pecky (for some upgrades). Good job, thanks!

Had trouble with cruise control before.
Range was 210 miles, and it should be about 170 (from my calculation).
Then as I remember was some error with speed sensor which Pecky clear for me.
Range comes to 175.
I drove on motorway and only from 70 cruise control start to working.
Then range comes again to 210 (even I did couples of miles ).

So maybe there is something broken in the car or my shity opcom made some mess.
Anyway since I bought it was an issue with accelemometer pedal (maybe).
When I am pushing it down it moves as it should, but if I am taking my foot away it is like juddering. If it is done quickly I can feel it more. I was suspecting dualmass flyingwhell but vauxhall told me it is OK.
Car is 1.7 CDTI. Astra H.
Any sugestions?

[mazak]

Update.
I tried to use cruise control today and it seems to be working fine.
It is just me - dont know how to use it. In my last car it was just different.

But range problem persist. So maybe it is sensor problem.
It should be about 130 but it show me 205.
Or it is problem with eeprom in CID, as I put one with dump from other car. My eeprom is not logged off from last car.

Any sugestions?

[domtorredo]

Update.
I tried to use cruise control today and it seems to be working fine.
It is just me - dont know how to use it. In my last car it was just different.

But range problem persist. So maybe it is sensor problem.
It should be about 130 but it show me 205.
Or it is problem with eeprom in CID, as I put one with dump from other car. My eeprom is not logged off from last car.

Any sugestions?

Don't pay so much attention to range I haven't seen in my life correct range even in Mercedes, so example from yesterday had range in morning 285miles after 20 min with hard acceleration range is under 150 miles all depends from your foot and driving style in case if you don't know astra got 52 liter tank