Smooth running controller??? Help

[mccabema]

Yes I was thinking this but having not replaced an injector before (I've done coil packs which are easy), I don't want to risk causing damage by not knowing what I'm doing !

I've searched high and low for a tutorial but nothing...which leads me to believe that replacing injectors is serious business best left to those that have the experience.

Correct me if I am wrong ..please.

[ChewingBacca]

I'm not much of a mechanic so I couldn't possibly advise.

Before I made any decision though I would run the car with diesel cleaner added.

I'm thinking the work you have had done may have disturbed deposits in the fuel system? Anyway for £6 it's probably worth a try.

[squeaky2]

[quote=""mccabema""]Hi.

I ran a smooth running controller test and it threw up the following:

Cylinder 1 -0,3
Cylinder 5 -1,4
Cylinder 3 -0,7
Cylinder 6 -1
Cylinder 2 -1,8
Cylinder 4 5.2


So the value in cylinder 4 seems way off !

Any suggestions of where to go next? Would such an extreme value suggest something other than just replacing the injector?

Wiring issue?[/quote]

Cylinder 4's injector value is well off. It would cause the smooth running fault and the rough running at idol.

I had the same problem with my old 330d. Came back from a 500mile trip through france and was running like a dog. Swapped out the injector and all was fine.

I had done a how to on the old site of how to change the injectors so i will have to look and see what i have here still. Its not the most difficult job in the world just time consuming and takes some patience.

I have just found a powerpoint i did so will try and convert it to pics and post it up here.

[x555]

[quote=""mccabema""]Yes I was thinking this but having not replaced an injector before (I've done coil packs which are easy), I don't want to risk causing damage by not knowing what I'm doing !

I've searched high and low for a tutorial but nothing...which leads me to believe that replacing injectors is serious business best left to those that have the experience.

Correct me if I am wrong ..please.[/quote]

This thread may help (visually) it's not a how too as such but there are some great pics of how Nige did his manifold includind removing the injectors viewtopic.php?f=21&t=700

[squeaky2]

Once youve actually got to the injectors and got them loosened up it shouldnt be too difficult to swap them around.

[gareth82]

[quote=""mccabema""]Yes I was thinking this but having not replaced an injector before (I've done coil packs which are easy), I don't want to risk causing damage by not knowing what I'm doing !

I've searched high and low for a tutorial but nothing...which leads me to believe that replacing injectors is serious business best left to those that have the experience.

Correct me if I am wrong ..please.[/quote]

Please keep us updated on your approach to fix this. I have the same problem but suspect its 2 faulty injectors. I have ordered INPA and will test injectors when it arrives. Have you sourced injectors yet?

thanks

[x555]

BLOTWAS has a good contact for the injectors..... diesel jones i think!

[mccabema]

Thanks for all the help guys.

I sourced an injector off ebay.de but think I am going to leave the task of putting it in to someone who knows what they are doing (unless that DIY surfaces ).

I'll keep you posted.

[mccabema]

[quote=""squeaky2""]

Cylinder 4's injector value is well off. It would cause the smooth running fault and the rough running at idol.

I had the same problem with my old 330d. Came back from a 500mile trip through france and was running like a dog. Swapped out the injector and all was fine.

I had done a how to on the old site of how to change the injectors so i will have to look and see what i have here still. Its not the most difficult job in the world just time consuming and takes some patience.

I have just found a powerpoint i did so will try and convert it to pics and post it up here.[/quote]


Seems there are quite a few people looking for an injector DIY-so if you do happen to find the time to make that post....

Sure would be appreciated.

[gareth82]

Hi.

The INPA kit arrived a few days ago so I got it installed the software and run the smooth running controller test.

Cylinder 1 - 4.9
Cylinder 5 - 1.8
Cylinder 3 - 1
Cylinder 6 - 2.4
Cylinder 2 + 6.6
Cylinder 4 - 3.4

The software states
OK: -5.0 to 4.0
Critical: Rate 4.0

My question is injector for cylinder 2 must be faulty but should I be replace injector for cylinder 1 aswell since its right on the limit

Thanks

[gareth82]

[quote=""x555""]BLOTWAS has a good contact for the injectors..... diesel jones i think![/quote]

Thanks for the info on this,
Cheapest I could find, just ordered two injectors from them

thanks

[squeaky2]

Long day at work today. I will see what I can cobble together in the next couple of days as to a how too.

[mccabema]

Sure would appreciate it squeaky2

[gareth82]

injectors arrived this morning. I have the car booked in with a BMW indy on Tuesday morning to get injectors replaced in banks 1 and 2, fingers crossed this fixes it, will report back as might be of use to someone else.

Indy couldnt get over how cheap the injectors where (after I get surcharge refunded it will be £105 per injector including delivery), lets home I dont get stun on fitting as I havent used this mechanic before lol

[gareth82]

2 injectors fitted today, no more rough idle and is driving so so smooth.