Limp mode: code P1325, P0102, P0113, P0404

[G m59]

IMy 2006 berlingo m59 2.0HDI served me well the past 12 years but now it’s letting me down without giving me clear information about what’s really wrong.

Problem:
few weeks ago it suddenly gone into limp mode = no power and not going above 3000rpm. It doesn’t go immediately into this mode when the car has started. After a cool down it’s going into limp mode after a few miles/km of normal performing and the engine check light going on. When I directly start it again after this happens it goes straight into this mode.

What I already changed/checked:

- tried to do a fold reading in the body shop where I work. We have a decent reader but didn’t find anything so I already tried to change the following components:

- First thing I changed was fuel filter and air intake filter because I didn’t changed them for a long time. Didn’t fix anything. 

- Then I checked the pressure on the EGR system on the exhaust and the electrical solenoid next to the battery and there’s no pressure loss on the top one and the solenoid one also holds pressure and releases pressure when giving gas as it should. Nevertheless I changed the solenoid one because I had a spare one. Didn’t fix anything.

- At this point I did run out of options and went to a citroën garage for a proper reading and they found these:

P1352: has to do something with the glow plugs. Can’t imagine that’s my problem because I have zero problems starting the car?

P0102: Airflow problem, value to low (short circuit to mass or Problem MFA itself or electronic unit motor?) I changed the MAF for a new one but didn’t solve anything.

P0113: temperature sensor of the MAF, value to high (cut circuit or short circuit to ground cable or MAF sensor broken or electronic unit motor Citroën gave as a possible problem)

P0404: EGR system not working properly. (Already check this with a vacuum checker and seemed like working properly?)

Don’t know what to do next. The car has over 13.000miles/ 220.000km so don’t want to do big money changes before knowing for sure that’s the problem (injectors, cat,...). On the other hand, the 2.0 hdi’s are known for going wel over those mileages. Also did a new clutch and power steering pump last year that costed some money.

Anyone advise of what I can or should do next??

Sorry for the long post but I wanted to give you guys (and girls) al the info I gotten so far.
Thanks in advance for your answers!

[Multispacer]

As a start you may want to read the pdf file posted by one of the moderators [Thanks to Zion] about limp mode and causes on this post

https://www.berlingoforum.com/thread-20797.html


and also this thread

https://www.berlingoforum.com/thread-230...=limp+mode

[G m59]

Thanks for pointing me in the right direction and the fast response!

[G m59]

So, problem solved for now : apparently it was “just” a glow plug fault. Changed all four of them and limp mode hasn’t come back for now. Still need to do a proper test run. Tough I think there could be a problem with the injectors that caused the problem?

[G m59]

Problem far from solved   . After running the car for 2 weeks without the limp mode appearing it’s back since yesterday   . Directly after I changed the glow plugs the engine was running almost normal apart from missing a tiny bit of power that it used to have. The day after it started to go downhill power wise on power low down the powerband. In higher revs it regained some power? So I tried to change the following during past two weeks:

- first I changed the glow plug relay....didn’t change anything.

- After disconnecting the MAF sensor I noticed the motor had a little bit better power delivery underneath so I changed the MAF....didn’t change anything.

So today I rechecked the EGR thing on top of the engine and now I noticed it slowly loses vacuum. 

———-> could this be the cause of all these problems that at this point are beginning to give me a major headache   ?

Thanks in advance for your help

[Sol]

Yep, vacuum leak = boost fault = limp mode.

Glow plugs were never going to be the issue. The HDi will start with none of them working, just the same. They only help in the depths of winter.

High-pressure Direct Injection, no glow plugs required 99% of the time..

I think you did need the new MAF but have probably now disturbed some creaky old vacuum lines while working on the car. It does happen..

[G m59]

Update.

So I begun on changing the EGR unit on top of the engine. When I got the old EGR out of the way I made use of the extra space on the back of the engine to check if the wastegate on the turbo is working and of course it doesn’t work   . This rabbit hole is getting deeper and deeper. 

Anyone some experienced how to solve this one? I assume the turbo need to get out of the engine bay to fix this one? I assume this is a real pain in the ### because there is nothing to find anywhere on how to get this solved   ?

[Sol]

Vacuum leak? Still not fixed? The turbo actuator works on vacuum.

[G m59]

Vacuum leak? Still not fixed? The turbo actuator works on vacuum.

I tested the wastegate with a vacuum-tester and the rod didn’t moved a bit.

[Sol]

Ah ok I understand. Maybe a seized actuator or turbo wastegate then. The turbo will bolt onto the exhaust manifold with a few bolts on a flange, plus an oil feed.

You can try taking it off to have a look, probably a burst diaphragm in the actuator though and not the actual turbo. I'd start with that.

This will be the source of the vacuum leak maybe?

Also, try moving the lever by hand - does it move? If it does, is there a squishing sound?