Guess this one just slipped through the cracks of customer service..
If it's anything like the G2X, there will be a setup setting for this, it was probably reset to factory settings or something.
Check out page 24 of the IQ3 manual PDF file here: http://racepak.com/downloads/IQ3/IQ3_Manual_v2.pdf
Check if any of the settings work for you, otherwise I'd suggest giving them a call, probably easier to get their attention when you're shouting in their ear
Thanks mate. Turned out that after the dash as returned from Racepak for a service, the signal from the coil packs was set to 4. We reset it to 0.5 and it is working again fine. I like the dash but that little card is just too small to handle. A USB port or SD card would be much easier.