Technical to replace injectors or not 1.9mjtd sport 150

Currently reading:
Technical to replace injectors or not 1.9mjtd sport 150

doz smith

New member
Joined
Nov 27, 2007
Messages
38
Points
12
So the car started to run very roughly, it started to be hard to pull away. I had suspected for a while that an injector was failing, after putting lots of cleaning through it, it cleared up a bit. Carrying out a leak back test showed the injectors all fed back a different amount that was linear from injector 1 through to injector 4, with injector 1 feeding back 25% more than 2 and so on.
I took out inj1 and gave it a few min in a sonic of warm isoprop and there was a noticeable improvement - so figured it needed replacing.
I then thought that they have all done 100k and it was so rough I was going to replace all 4 with recon injectors. The very helpful chap on ebay I got the injectors from only had 3 and with he crap weather I only had chance to replace no1.
So now looking at the injector compensation I am not sure it is worth replaing the others - what do you guys think?

qp0I6nW
http://imgur.com/qp0I6nW


This was taken when warm and the initial step is at tick over then I varied the non load engine speed to about 1800rpm and then up to around 2500.


I have been reading around and people are saying that the tick over value is not very meaningful, but I don't see how it could not lead to rough running.


Thanks
 
Last edited:
Back
Top