My daughter's 11 year old RAV4 broke down yesterday. AA called and towed to local garage who have diagnosed a fuel injector stuck open. They have suggested all four injectors removed and sent to be cleaned and tested, replaced if necessary. They told her over phone that a new injector is around £400 😮 Car has done just over 80K miles and they have had it since new with no real problems. Appreciate your comments and advice re this.