AiM MXL Strada Dash or try to fix OEM Dash?

Hey guys, i have a problem with my Exige and was wondering if anyone can help me.
I’m using a standalone ECU on the car ( Electromotive Tec3R ) and it works perfect but the problem is that this ECU is Serial only and can�t work with our CAN Bus Dash so i left the oem ecu ( 2004 Exige without Drive by wire ) just to work the Dash. Now the problem is that the Electromotive ECU has its own crack sensor so i had to remove the oem sensor but its seams that the RPM Gauge can�t work with the Electromotive sensor because every time i start the car the RPM needle jumps up to around 1500 rpm and then gets stuck there. I don�t know if there is a solution to this or if i have to change my dash. I was thinking about the AiM XML Strada Dash, it dose look good but i wanted to know if it can receive both CAN Bus and serial inputs at the same time. Hope someone can help. Thanks

where are you based? we’ve done a fair bit of work on this but we’d need to see the car.

Well im in Cyprus and i dont really wonna spent so much money on an other dash is i can get the oem one to work.

Hmmm…bit tricky then. Not much we can do withtout the ECU and car. Our ECU will work with stock dash