i had a injector replaced on my car and the bill came to $229. i thought that that was a bit high? cylinder #3 used injector $15 shop supplies $10 computer hook up $35 1996 3.1 olds cutlass sup. sl front wheel drive total was $229 how hard is this to change? i think i got taken to the cleaners. this a local mechanic. i've always been going to him. anyone know what the shop rated hours are for changing an injector?