First off id like to say im loving this forum, ive heard about it when i was on Fiesta-si.com.

Im hoping you lot can help me...please

i have a 95 ford fiesta si 16v zetec and the PATS system has packed up so i cant start my car, my question is:
If i change the PATS box (black box behind dash) and my key will it work or is the code also in the ECU?

Thank you