novak82

Consider yourself lucky. I got 25mpg in town and 33 on motorway

Maybe it was dpf cleaning or something??? Not sure what it could be. How much did you pay for changing 5th injector and ecu update? I'm worried that Lexus will quote me high bill and was wondering if replacing fifth injector can be done somewhere else?:/

I haven't done anything yet. I am planning to book visit in lexus this week. How is your fuel consumption? Adi_lex have you done your 5th injector?

This is where I found it: http://www.lexusownersclub.co.uk/forum/topic/42419-is220d-fifth-injector-problems/

No I didn't yet test 5th injector. By out of date I mean that apparently there was a firmware update to ECU to version 500, I don't have any sticker on my engine cover so I am assuming mine is still with previous version. Thats what I found in different threat: "Hi thought i would offer some feed back here for you,i used to work for lexus/toyota up to 6 weeks ago.There are some issues with the 5th injector and all injectors for that matter with the 220d.the engine is from the avensis T180 to start with,where it had small problems with the e.g.r system and water consumption.when they fitted it to the is220 they made it rear wheel drive and re-maped the e.c.u to allow for better driving.this caused the car to over fuel on short runs cloging up the e.g.r even faster and causing ruff idle and poor m.p.g(the car was never great on m.p.g before).the 5th injector is for cold start and extra fuel for high throttle response(very basic discription here)the problem was it was staying in to long and over fueling(this is the e.c.u re-flash you are talking about to aid the problem).the over fuelng was cloging up the injectors making the whole problem worse.Lexus have made new injectors now with a differnt spray nossile and coating to ease the issue.there have been a few cars that have blown head gaskets due to these problems. I hope that shines a bit of light on the subject for you all? "

I will ring Lexus Reading tomorrow as last time they done checks , they said they can't reproduce any faults. I want to ask them about ECU version, I have got gut feeling that mine is out of date and that might be the issue. Injectors were tested again today and came back spot on. Let us know how you getting on with your 5th injector.