Vems ARF - EGT Gauge, AFR always reads 21.8

[James Supra]

Hi folks new to this forum and have been reading alot of problems but nothing that can shed light on mine.
I have the Vems AFR - EGT gauge and was working fine, and then last week the AFR starting reading 21.8 all the time no matter how i revved the car.
I ordered a new BOSCH sender from vems and still reads the same 21.8, i then got my mate's car round and tried his sender and yep you guessed it 21.8.
If i unplug the bosch sender then the gauge just reads - - - so its deffinatly seeing somthing, also it dont seem to heat the senders as it used to.
So after all that can i get it looked at and maybe fixed or can i just buy a replacement gauge ONLY as i obviously have all the senders already installed.
Any help is much appriciated THANKS.

[rob@vems.co.uk]

How old is the gauge?

[James Supra]

2 years old i think, i purchased it brand new why you ask.

[rob@vems.co.uk]

Just trying to work out what could be wrong!
When you're using the spare sensors do they heat up correctly?

[James Supra]

No none of the bosch senders ive tried get warm so its deffinatly the gauge at fault, think im just going to purchase a new 1 as i have a trackday booked for the 5th march at Donnington park.
Was just looking on vems website and there are 2 avalible so not sure which 1 i need, i think 1 use's a seperate system and just displays the reading and the other (lower on the page) is the gauge i need as it reads the signals and then displays the results.
Also do they do BLUE - BLUE in the gauge as my old unit is RED - RED but my other gauges are blue.

[rob@vems.co.uk]

This one: http://shop.vems.hu/catalog/roundwbo2egt-p-101.html
Make sure that you set: EGT sensor and LSU4 WBO2 sensor options to no (unless you want them of course)
I'd suggest you select: display_color blue/green and then once you get into the payment section ask for Blue/Blue in the notes section, they'll respond to this on Monday I'd reckon.  Also it might be an idea mention that its a replacement gauge - and give them the serial number of your current one (check the plugs for the serial number).
The new gauges have a modified analog input which allows a MAP sensor to be added so you can make the unit into a programmable boost controller...

[James Supra]

Cheers for your help rob i have just ordered that gauge but kept with RED - RED display, will have to take my old unit out and await for the new 1 to arrive to make sure they are the same.
Mine has a spare connector that looks like a computer monitor plug but its not used.
Can i get my old unit repaired do you think, if i send it to vems may they take alook at it.
Also do you work for vems as your name is rob@vems lol.

[rob@vems.co.uk]

The units are not replaceable - they've been engineered to break when dismantled.
I do not work for VEMS, I used to be the the UK support agent, but that's kind of stopped in the past year.