Hello guys
I've been researching what appears to be a very common complaint on the Lexus is220d about the massive turbo lag and general lack of power. My car was boosting just under 2000rpm but as soon as you went in to second it was flat as anything, almsot to the point of being dangerous.
Last Saturday I decided that I was going to buy a tuning box for it to try and alleviate the lag and some add some much needed low down torque. I have since ordered this. In the meantime I asked my mechanic to remove and check the EGR. He did this on Monday and it was very very carboned up. He cleaned it and the manifold where it had a build up of carbon and sadly it had no effect. He suggested that the EGR could be faulty so I agreed to it being replaced which cost £320 just for the part. This was fitted on Wednesday and very disappointingly, it had no positive effect.
The car now isn't boosting properly (before the EGR was fitted), it starts to boost and then cuts off prematurely and just seems so flat.
I have now put the car in to a recommended technician who is a good 'fault finder' but wondered if any of you guys may have had experience with turbo boost problems? The first mechanic also cleaned the MAF sensor for me.
The car hasn't been seen by Lexus since 2008 so I am unaware if it has had any recalls, ECU updates etc
I'm so stressed out, I just want a car that can be driven. The chip box arrives on Monday but I feel that the underlying problem (the turbo boost) at least needs sorting first before fitting it.
Any advice, suggestion or contributions are most welcomed.
Thank you in advance.
Robby.