just changed a driveshaft on my 96 wrx saloon pretty chuffed with myself to be fair BUT jumped in started 1st turn of the key went for a drive only 5 miles or so anyway my check engine light came on got car home andd now it wont start no fire at all just done plugs and coil packs and they are all tight ect any ideas

 

been out to car it started 1st click went for a drive 8 mile soon as i went above 4000rpm check engin light came on my speedo is not working will that make engin light come on ?

 

Check the fault codes.