Hi all,
Does anyone have experience with this code?
Basically I am having a really bad cold start (sometimes almost impossible to start) and the engine knocks on low revs with some last. At high revs it runs great and there is no power loss at all. When warm it has a good idle but still knocks on low revs under load.
I have made everything possible with diagbox v7.57 from new coding to calibration and over 2 hours driving with recommended procedure to calibrate the injectors (rolling from to 2600 to 1600). At the end of this procedures I found this error, saying that a calibration of inj.#2 was out of parameters.
I have inspected all injectors and there's nothing wrong with the conectors or leaks.
Strange is that the corrections, and injection durations look good and similar to all 4 injectors.
Is one really dead?
Thanks in advance
P0266 C4II 1.6 HDI
Moderator: RichardW
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Re: P0266 C4II 1.6 HDI
Which engine is this? If it's the 8V version (DV6C) then injector failure is common, particularly on early (2011) engines.
Richard W
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Re: P0266 C4II 1.6 HDI
I thought it was the earlier 16v engines that had weak clamps for the injectors?
As I get older I think a lot about the hereafter - I go into a room and then wonder what I'm here after.
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Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
Re: P0266 C4II 1.6 HDI
Yes it is the DV6 8v engine with 112hp and 2011! That confirm my suspects and I was now looking for new injectors on eBay!
I get reconditioned ones for 300Eur (ca. 265 GBP). Or there is some official recall from Citroen where they support the change?
Thanks for the info
I get reconditioned ones for 300Eur (ca. 265 GBP). Or there is some official recall from Citroen where they support the change?
Thanks for the info
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- Forum Treasurer
- Posts: 10814
- Joined: 07 Aug 2002, 17:12
- Location: United Kingdom
- My Cars: MK2 '17 C4GP 1.6 BlueHDi 120
'13 3008 1.6 HDi GripControl - x 984
Re: P0266 C4II 1.6 HDI
They fixed the problems with the injectors coming loose, but introduced a batch of injectors in the early days that just give up the ghost at some point
There's no support from PSA as far as I know. One of our users runs a garage and says he always fits genuine Citroen ones, as they can be a pain (or refuse!) to code otherwise.andrax wrote: ↑17 Feb 2019, 21:46 Yes it is the DV6 8v engine with 112hp and 2011! That confirm my suspects and I was now looking for new injectors on eBay!
I get reconditioned ones for 300Eur (ca. 265 GBP). Or there is some official recall from Citroen where they support the change?
Thanks for the info
Richard W
Re: P0266 C4II 1.6 HDI
Thanks for the information! The ones I am looking for are genuine but not new. They were reconditioned and I need to send the old ones back. They have nice reviews thought.
Since I bought the car recently I will talk first with the seller and keep you updated on how it goes.
Since I bought the car recently I will talk first with the seller and keep you updated on how it goes.
Re: P0266 C4II 1.6 HDI
https://1drv.ms/v/s!ApBU-hIOlqB5h9QnHx-hAPwniXGNug
Just a small video from a cold start where I was using the gas to keep the revs. This was the first time where it happened although the engine knock have already started for one week.
Just a small video from a cold start where I was using the gas to keep the revs. This was the first time where it happened although the engine knock have already started for one week.
Re: P0266 C4II 1.6 HDI
Update: after the calibrations yesterday the car just had a nice cold start today. I can still hear an injector slightly ticking but it idles good and accept gas.
I will drive later on and assume the knock on low revs it's still there but as I am driving mostly on motorway it runs pretty normal.
I will drive later on and assume the knock on low revs it's still there but as I am driving mostly on motorway it runs pretty normal.
Re: P0266 C4II 1.6 HDI
Another update, I spoke to a friend living in France and working for Citroen. He said that sometimes the injectors go bad after doing the calibration with diagbox. Does anyone have heard of it? Because I think that is what happened to me. The engine was running good and after the calibration it started to knock. Now is the question if the injector is really dead or can be adjusted again... Until now without success!
Re: P0266 C4II 1.6 HDI
Hi all, the engine is running great again!
I made the injector calibration with diagbox a few more times, and at a point the injection timing was right again. For the last time I runned the engine to working temperature and then performed the calibration of injector #2 (the one making trouble) then I jumped to the calibration maneuver menu and did a few runs in 5th gear rolling from 2600 to 1600 RPM. After a few tries, the knock was gone!
Glad that it worked out!
I made the injector calibration with diagbox a few more times, and at a point the injection timing was right again. For the last time I runned the engine to working temperature and then performed the calibration of injector #2 (the one making trouble) then I jumped to the calibration maneuver menu and did a few runs in 5th gear rolling from 2600 to 1600 RPM. After a few tries, the knock was gone!
Glad that it worked out!