IS220D Suspected Injector Issue

[Marty8210]

Hi All,

I have a 2009 220d with cicra 130k miles on the clock, It has had intermittent rough idle for the last 2yrs, which has had persisted although the following have been replaced:

DPF (2wks ago), Fuel Rail, EGR valve, high-pressure pump, diesel-filter 

I've also used BG244K and a number of other cleaning products, the car develops power ok and only has the idle problem

I'm aware that the 2AD isn't the smoothest of engines, but this idle is definitely not usual.

I've been to my local lexus dealer on a few occasions, but the issue did not present itself during any of the visits, i.e it idled smooth, and there were no significant pressure differences b/t injectors when the car was plug in to the diagnostics unit. 

I've become convinced that it's injector issue, but don't want to buy a whole set of them due to the expense.

Has anyone experience of changing injectors in one of these, I'm considering buying 1No. injector with the same model number as the existing ones, and switching from cylinder to cylinder until I've found the faulty one. If the injector is the same model as the existing one, would the car need to be coded to it each time (I don't have a diagnostics unit to do the coding)?

Any alternative suggestions on the injectors or indeed any alternative suggestions in general would be gratefully welcomed!

Thanks,

Martin

 

[madasahatter]

I think if you buy injectors, they have to be coded by a dealer or somebody with the lexus toyota program techstream.

[normski2]

I know that this member

http://www.lexusownersclub.co.uk/forum/profile/38756-carl911/

Carl911 used to have a 220d and that he changed an injector himself. It would be worth sending him a message to see if he can help you. He is very approachable and altogether a good fellow. If he can offer you advice I'm sure he will.

Hope that helps. You may of course quote me as your link to Carl.

[Marty8210]

Hi Guys, thanks for your responses.

I'll drop Carl911 a message