Hi everyone, have owned my 07 IS220D, 78K miles, for some 18 months and have noticed a distinct lack of power when pulling away from traffic lights, roundabouts etc. Read forum re EGR valve and, as vehicle was due a service, took it to Lexus Nottingham. After a lot of work, including cleaning the EGR valve and checking the cat for blockage, the fault was traced to the MAF sensor, (whatever that is)! Don't know if anyone has had this problem but worth noting perhaps. Cannot praise Lexus Nottingham highly enough, very good service and they only charged me for 2 hours labour when I suspect that finding the fault took a lot longer. Have no hesitation in recommending them if anyone in the Nottingham area needs work done.