382 replies to this topic

[Andy_VX]

Don't really see what the big issue is with the mileage. Garw can preset the miles before dispatch, just get each buyer to provide proof of the V5 and look up the last MOT certificate to get a rough idea on mileage, this will be close enough. If anyone really wants to lie and save themselves a few miles then let them crack on.... 

[gaffer1986]

Until they reinstall the standard stack after covering loads of miles. Sent from my SM-G920F using Tapatalk

[ditonics]

Does look open to milage abuse.

[Andy_VX]

Yeah but there's not much you can do about that, there are plenty of other aftermarket gauges that would allow you to do the same thing. 

 

MOT mileage records were introduced to prevent it. 

Edited by Andy_VX, 03 April 2017 - 10:36 PM.

[ayresyy]

It's not really any worse than the current set up for mileage abuse. You can easily cut input signal wires on the current set up and not add miles, or simply swap stacks over with a low Milage one at mot time. On more modern cars where the ECU also stores the mileage and clocks are married to the ECU it can still be cheated, unfortunately if people are that way inclined then they will find a way to do it.

[garw]

Some Modern cars are easier , Plug in a cable and enter a new number , it's been done on VAG cars for a while

Edited by garw, 04 April 2017 - 05:58 AM.

[garw]

There are much easier ways to stop mileage increase on a vx Without going to the trouble of removing a cluster once a year for MOT But listing a quick simple way to fraud your mileage on a forum is not a good idea As said already if someone wants to fraud their mileage they will be doing it already .

[ayresyy]

 The easiest method for keeping the mileage down is one a few of us use (myself included until recently)... 

 

       just park up and don't drive it.  

[slindborg]

@ folks getting in a tizz about clocking.

 

who cares, I think there has been only one or two cases of "proven" misleading milage on VX220 sales in the past 17 years. Done.

Anyway, those buying on miles as the marker for a car are somewhat naieve (spelling), same as those who refuse a tracked car due to incorrect asumptions etc.

[gaffer1986]

@ folks getting in a tizz about clocking.   who cares, I think there has been only one or two cases of "proven" misleading milage on VX220 sales in the past 17 years. Done. Anyway, those buying on miles as the marker for a car are somewhat naieve (spelling), same as those who refuse a tracked car due to incorrect asumptions etc.

Agreed, my 100k vx220 was better in many ways than my 52k car. Albeit they are both a complete pain. Im proud of the mileage I put on the car and couldn't give two figs about keeping it low. The most expensive parts of the car aren't affected by mileage anyway. Sent from my SM-G920F using Tapatalk

[turboluca]

Most genuine good people will not clock a car . These new dashes are awesome an Iv seen them in the flesh !!👍🏻👍🏻👍🏻

[pete-r]

I'm going to have one in my car this week...

[ultimate]

@garw: I am currently planning how to install my extra sensors and how to route the wires.

 

My clam is off at the moment and i do not want to mount the clam without having the sensors and wires installed.

Which sensors for oiltemp, oilpressure, boost etc. can be used? Specific ones or is the sensor-type configurable by the user?

 

Do I understand it correct that the sensors must all be wired to an extra module and this module is connected to the cluster by CAN?

If this is correct i would route the sensor-wires to one point in the engine room and just the 2 (?) CAN wires from there to the dashboard?

 

Or do I need to run all extra-sensor wires to the cluster?

 

Cheers

Chris

Edited by ultimate, 04 April 2017 - 01:08 PM.

[garw]

There're 4 analogue inputs into the cluster, 2 are used by the fuel tank and coolant temperature So that leaves 2 , oil temp and oil pressure would be the normal choice for these. The 2 extra analogues are for resistive sensors to ground , so these cannot be used with boost , O2 or any other sensor which gives a voltage level out. For more than 2 resistive or voltage level sensors the expansion box will be needed Canbus wires are a twisted pair , it's possible to use normal wires twisted together But I would recommend a proper canbus wire which has shielding also , easier to route and pull through tight areas .

Edited by garw, 04 April 2017 - 02:09 PM.

[ultimate]

How many sensors can the expansion box work with? Will this Box be available as soon as the cluster itself or is it planned for a later date? Which brand of sensors do I need for oiltemp and oilpressure? VDO are the most common I think?

[ultimate]

BTW: VX220 and Speedster do not have a analog resistance signal to the cluster. It comes digital from the ECU

[garw]

Box available later The fuel sensor in the vx is a variable resistor to ground The temp is a pwm signal 50% duty is 99 deg c The analogue input is used for this , an average of the pwm signal is taken over a short period Works fine and currently on test

[garw]

The box will have upto 16 analogue inputs

[ultimate]

Thanks for all your answers. I will definitely buy one!

[garw]

For those interested in the maths The pwm signal goes on/off at a rate of 100 times per second The duration it's on verses the duration it's off is the duty cycle or mark space ratio When it's on for the same duration it's off that's 50% If it's on for 10% off for 90% that's 10% duty If I'm taking 100 samples of this then divide by 100 I will get an average value Essentially converting it to analogue 255 is high zero is low So a 50% duty cycle would be 127.5 ....make sense ?