Hi I have a vectra c sri 2.2 ive changed air filter . Spark plugs and fitted a ebay purchased egr blank and cheater mistake I think .
Worked for bout an hour then eml came on today
all above was for a lumpy idle
how can I get a cheat off here please
and any suggestions on lumpy idle
possiblee coil pack
also losing small amount of coolant and already had pressure test which showed nothing
many thanks in advance martin