406 hdi injectors

exjarl · Unread post by **exjarl** » 27 May 2004, 19:10

after a full diagnostic check I have sporadic injector operation in cylinder no. 4 . Is it best to change all 4 injectors and if so how easy is it?

wheeler · Unread post by **wheeler** » 27 May 2004, 19:31

it is recomended that these injectors are replaced as a set but i dont know if you have priced them yet but it would mean lots of £££,its also recomended that the pipes are replaced if they are removed (i wouldnt bother personally).

exjarl · Unread post by **exjarl** » 27 May 2004, 19:37

I have obtained a set from a write off (50 000 miles) but if changing all 4 how long would it take and would I need any special tools?

exjarl · Unread post by **exjarl** » 14 Jun 2004, 03:07

changed injectors but no difference, still lumpy at idle. could it be the ecu unit or the ignition coil?

wheeler · Unread post by **wheeler** » 14 Jun 2004, 03:44

any fault codes or engine management lights on ? does it improve when the car heats up ? when you say ignition coil remember this is a diesel so i take it you mean the charging coils for the injectors ? these are integral inside the ECU.did you fit new washers & sleves to the injectors ?

exjarl · Unread post by **exjarl** » 14 Jun 2004, 07:37

fitted new washers and sleeves, and it is only when it is idling that it is not firing properly, no fault lights apparent.

exjarl · Unread post by **exjarl** » 14 Jun 2004, 07:39

By the way it is the bosch system.