L lewk Joined Nov 25, 2004 Messages 275 Location southwest Nov 22, 2007 #1 Is it possible to do a flash PROM upgrade and install a guage for an older GM minivan(97 astro)to take the guesswork out of the OCI ?
Is it possible to do a flash PROM upgrade and install a guage for an older GM minivan(97 astro)to take the guesswork out of the OCI ?
