on a 99 2.0 model you will have 2
diagnostic ports. both of them will be the
fiat 3
pin type.
to connect the 3 pin
fiat connector to a 16 pin obd2 connector you need 4 lengths of
wire. use 3 lengths of wire to connect the 3 pin connector to the obd connector. also use 1 length of wire for
power to the obd connector.
on the 16 pin obd2 connector use the following pins
4- chassis ground (
connect to ground on 3 pin connector, or any good
chassis earth)
5- signal ground (connect to black wire pin on 3 pin connector)
7- k line (connect to white wire pin on 3 pin connector)
16- 12vDC (connect to battery positive terminal)
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