I have just fitted the Vortech SC using the new boxes they supplied for air fuel/ timing. I can tick-over without a warning light but as soon as I go down the road I get a 'check engine' within 100 yards. It seems to come on when decelerating. I think S10 code is something to do with air/fuel. I also have an APEXI VAFC mounted downstream of the unit with all values set to 'zero' apart from the obvious set-up menu.
I have checked that all pipes are orientated correctly on the FMU and that I have vacuum at the control box and all other points.
Any ideas/ people with similar experience would be appreciated as I have rolling road time Tuesday and don't want to cancel this - if I can solve the problem quickly!
Many thanks
MACA