I have a small problem in the installation of a dual band vhf/uhf radio
in a 1997 Ford aerostar.
I can turn the check engine light on with a few moments of transmission.
Everything seems to work ok, just that pesky light keeps coming on.
The only way to clear the computer and reset the light is to disconnect
I know the check engine light is a warning light for the emissions
control system, but I am hoping that someone has encountered the same
problem and will know what I need to shield.