[Engine] No Fuel to Injectors

[polar]

Are you replacing components without a diag being done?

That is a very expensive way of doing things on a modern vehicle.

Ive just noticed you are in Brum - Lighty is only about 1 1/2 hours away and he can do a diag with the latest Citroen software.

Hi Polar,

Well I've been told by local garage that it was EGR fault code after diag, which I replaced but no difference, so I guess its either injectors or Turbo so cant go wrong changing both surely? I'm also located in Aberdeen mate so Lighty is outwith driving distance unfortunately 


Sorry Jmick - dont know why i thought you were is brum  anyway you need to go to a different garage mate by the sound of it? EGR's are known to be poor when purchased off ebay and can send you on a nightmare so make sure you go a decent one and not a copy. 

[cancunia]

Polar makes a lot of sense about not replacing things without a decent diag readout. An EGR fault on it's own should not cause the problems you have AFAIK. I don't have any experience on a B9 but I have driven a late 1.6 HDi M59 with a duff turbo and it didn't make a lot of smoke, nor were there any fault codes, it simply had no power. There's a boost sensor in the throttle valve (doseur) plus the MAF which will tell the ECU how much air is going in so it knows how much fuel to inject. Seems unlikely that all of your injectors have gone at the same time, did they all go back in the same place?

[frank]

Polar makes a lot of sense about not replacing things without a decent diag readout. An EGR fault on it's own should not cause the problems you have AFAIK. I don't have any experience on a B9 but I have driven a late 1.6 HDi M59 with a duff turbo and it didn't make a lot of smoke, nor were there any fault codes, it simply had no power. There's a boost sensor in the throttle valve (doseur) plus the MAF which will tell the ECU how much air is going in so it knows how much fuel to inject. Seems unlikely that all of your injectors have gone at the same time, did they all go back in the same place?

now that you mention doser, the later doser also has an intercooler bypass valve iirc, that heats the intake when dpf regen is operating, if those valves were faulty that could explain the smoke ?

[Jmick]

Polar makes a lot of sense about not replacing things without a decent diag readout. An EGR fault on it's own should not cause the problems you have AFAIK. I don't have any experience on a B9 but I have driven a late 1.6 HDi M59 with a duff turbo and it didn't make a lot of smoke, nor were there any fault codes, it simply had no power. There's a boost sensor in the throttle valve (doseur) plus the MAF which will tell the ECU how much air is going in so it knows how much fuel to inject. Seems unlikely that all of your injectors have gone at the same time, did they all go back in the same place?

now that you mention doser, the later doser also has an intercooler bypass valve iirc, that heats the intake when dpf regen is operating, if those valves were faulty that could explain the smoke ?

Hi cancunia,

With regards to injector positioning, they were all removed individually and replaced one by one after the seals were replaced, so yes I'm 100% confident they were all putt back in the correct place. I'm pretty sure there is something far wrong with the turbo because its very very oily inside almost like there is a seal damaged which can be seen after removing the attached rubber pipe. The van seems to be fine with none or very little smoke on tick over and only smokes from 2000rpm and above. With regards to DPF, does this model actually have a DPF? My local trade parts supplier seems to think not

[frank]

dpf,s were fitted 2008 onwards i believe, and the doser on those have a valve that closes to constrict the intake so that the egr flow is biased, and another valve that closes to bypass the intercooler (for warmup and dpf regen) if those 2 valves are sticking you should get soot and power loss
and oily/wet intake is pretty common on these hdi 1.6,s

[Jmick]

dpf,s were fitted 2008 onwards i believe, and the doser on those have a valve that closes to constrict the intake so that the egr flow is biased, and another valve that closes to bypass the intercooler (for warmup and dpf regen) if those 2 valves are sticking you should get soot and power loss
and oily/wet intake is pretty common on these hdi 1.6,s

Hi Frank,

Thanks for that mate! I'll take a look and see if either of these is stuck or gunked up, as it would make sense considering it runs fine on tick over but only smokes on acceleration around 2000rpm but eventually clears after a slight hesitation from the engine, it almost feels like a small misfire then it belts out a puff of black smoke and takes off as normal 

[frank]

   

my intake is a lot dryer and less oily since fitting a catchcan on the crankcase breather, and before i cleaned the intake air temp sensor with carb cleaner it used to chuff soot quite randomly

[cancunia]

As Frank says, there's often a fair amount of gunge on the turbo inlet due to the breather pipe connection from the cylinder head, but it is possible for an oil seal to go. I found my air temp sensor was covered in oil so gave it a quick squirt of carb cleaner, the pressure sensor didn't want to come out so I left it in place. A good clean up before & after the turbo may help diagnose your problem. You should also get a code reader, less than £5 on fleabay.

Not all B9's are fitted with a DPF, you can check from the VIN:

https://www.berlingoforum.com/thread-17152.html

[Jmick]

As Frank says, there's often a fair amount of gunge on the turbo inlet due to the breather pipe connection from the cylinder head, but it is possible for an oil seal to go. I found my air temp sensor was covered in oil so gave it a quick squirt of carb cleaner, the pressure sensor didn't want to come out so I left it in place. A good clean up before & after the turbo may help diagnose your problem. You should also get a code reader, less than £5 on fleabay.

Not all B9's are fitted with a DPF, you can check from the VIN:

https://www.berlingoforum.com/thread-17152.html

Morning Cancunia,

I've had a look at the thread you mentioned and followed the links and checked against my VIN,however, my VIN is showing on the log book as a 7*9HT* which is quite an unusual one and also the engine DV6AUTED4 E4 BVM seems to be few and far betweeen 

[cancunia]

9HT is a 75HP engine according to one of the threads I saw on this forum, but no ideas if it has a DPF:

https://www.berlingoforum.com/thread-101...ht=1.6+hdi

There are 2 ways to tell, with one being certain, that's to look at the exhaust in front of the engine to see if there are sensors before & after the big can, the other way being to look on catcar with your vin entered.