I know very little of Vectra's but I use a Bluetooth OBD II dongle (about £10 on eBay) in my car, along with the Torque App on my android phone to check for any faults and also clear the EML that pops up from time to time (due to having a decat pipe fitted instead of the stock CAT :roll: ).
IPhones need the WiFi dongle.
Dascommand is another alternative App to Torque.
I assume if your Vectra is OBD II it should work the same.
IPhones need the WiFi dongle.
Dascommand is another alternative App to Torque.
I assume if your Vectra is OBD II it should work the same.