[Damien Pole]

Did you solve the problem I'm getting same problem iv changed the fuel filter 3 times no air no leaks I'm about to take the Injectors out and send them for testing unless I find another cause for the problem so any help would be much appreciated thanks

 

[Damien Pole]

Thanks for your reply the first one was bosch filter then both have been genuine honda filters at a cost of £48 only reason I mentioned injectors was because iv had the car live tested? And the guy said injector 3 was not self adjusting(what ever that means) but that might not be the cause of my problem.

Yes I'm getting both p0087 and p1065 but I have to rule the filter out as this is now a second genuine one fitted and there was no leaks on the test and it's fitted correctly.

I did do a vale check on the pressure valve and got no fuel at all but maybe the valve is fine under tick over but when put through it's paces it might be leaking? I'm not really sure but I have no starting issues she starts 1st time hot or cold, but sometime I do get a higher idle speed but is not very often and soon returns to normal after 10 or 15 seconds but any suggestions are welcome thank you

 

[Damien Pole]

Those codes both relate to the rail pressure being low. Less likely reasons are...
Restriction in the fuel line
Restricted fuel filter (which you've ruled out)
Dodgy fuel pump
Sticking fuel pump m-prop solenoid

More likely reasons are...
Leaking rail valve (try driving around with the output line diverted into a bottle?)
Injector leak-back has become excessive.

I'd recommend that you crack on and test this last thing! The live test refers to the injector operation, specifically how balanced the delivery into the cylinders is, based on individual piston force/speed at idle. As you probably know, injectors are calibrated and have an IQA code that is entered into the ECU to make sure they all work equally. However the Bosch EDC16 ECU will additionally 'trim' the injector fuel delivery to give an equal measured balance, up to ±5mg per injector, and that trim figure is what the live test shows. But just because the trim figures are in range, it doesn't mean that the leak-back volumes haven't become excessive!

Thank you I will do both this weekend I shall test the rail valve while I take it for a quick blast and I will have a go at leak back test on each injector and see what I find but il post my resultsas it might help others again thank you

 

[Damien Pole]

Iv just fitted a brand new common rail valve and it made no difference but was worth a shot

I'm now thinking injectors because maybe at 3000rpm one or more is becoming blocked or not fully opening but I would of thought that would cause a high fuel pressure problem code but I keep getting low pressure codes?

Iv heard of a fuel sender in the tank could this be blocked?

I can get my hands on a set of used apparently working injectors for £90 or should I just get mine refurbished if they are faulty?

 

[Damien Pole]

Have you done any injector leak back tests yet?

Not yet I am planning on doing it this weekend but my symptoms are only at 3000rpm or over so I'm not sure if it will show any signs? But I could be wrong

 

[Damien Pole]

I don't like how you've abandoned performing diagnostics in favour of buying replacement parts.

I would only be buying them to replace any of mine if they are not repairable or if the repair cost is high, I am planning on doing a leak test and then removing the faulty injector/s and sending them off to be tested but at the same time if I buy the other 4 I can also send them away its only £10 per injector to test and if they could fix mine and tell me the other 4 are good I could sell them on or keep as spears

 

[Damien Pole]

Have not had time yet to do a test but will do one tomorrow one thing I have noticed is a lot of either diesel or oil all over the back of my tailgate it smells like diesel and must be coming from the exhaust.

The car smokes a little bit if going full throttle but no more than other diesels, it use to smoke alot more when it had a copy air filter but I changed it to a genuine honda one a while ago. Do you guys think this could be due to a faulty injector? I am going to get the rest done tomorrow iv now got all bits needed so hopefully that will tell me something

 

[Damien Pole]

Dodgy EGR's can cause smoke, oh the joys of diseasel's.

Egr is mapped out and blanked and I can't see anything else other than injectors to cause diesel to come through the exhaust, il test them tomorrow and if they are ****ed il try and take them out fun time

 

[Damien Pole]

Did a leak back test today injector 1 and 3 had slightly more diesel but nothing bad but I did notice number 3 had bubbles coming out all the way through the test? But the amount of diesel that came out was within limits, I was hoping one or more would show more fuel and that would point to a fault but I'm not sure now

 

[Damien Pole]

Those codes both relate to the rail pressure being low. Less likely reasons are...
Restriction in the fuel line
Restricted fuel filter (which you've ruled out)
Dodgy fuel pump
Sticking fuel pump m-prop solenoid

More likely reasons are...
Leaking rail valve (try driving around with the output line diverted into a bottle?)
Injector leak-back has become excessive.

I'd recommend that you crack on and test this last thing! The live test refers to the injector operation, specifically how balanced the delivery into the cylinders is, based on individual piston force/speed at idle. As you probably know, injectors are calibrated and have an IQA code that is entered into the ECU to make sure they all work equally. However the Bosch EDC16 ECU will additionally 'trim' the injector fuel delivery to give an equal measured balance, up to ±5mg per injector, and that trim figure is what the live test shows. But just because the trim figures are in range, it doesn't mean that the leak-back volumes haven't become excessive!

With the Injector back test coming back as normal I want to rule out everything else before I take the Injectors out, now my problem started after I gave it a service I replaced the fuel filter with a bosch filter that was off ebay when I started to get the problems I instantly thought fake ebay filter so ordered one from euro car parts that did not solve anything so then I went to honda and bought a genuine one and this also didn't solve anything.

My question is is there a filter/ valve on top off the filter housing that might of got damaged or might be stuck? It just puzzles me that it only started to happen after a fuel filter change, iv had the car checked for leaks and it has none

 

[Damien Pole]

Just a quick update iv had access to another crv so I have swapped some parts over to see if it fixed the issue but unfortunately not

I have replaced both ends of the common rail I replaced the pump pressure relagator and I have replaced the fuel filter previously and my faults are the same.

Iv even took the egr blanking plate off incase that was causing it some how but I'm not sure what to check next I can only think of the fuel sendor in the tank? Fuel pump and injectors.

Any help is appreciated and I will keep this updated untill I solve it or burn it lol