Technical 2006 1.3 mjet - P0236 code, loss of power?

[whoopsie]

Hi everyone,

I have a 2006 4x4 PandaVan with the 1.3 mjet diesel. Everything has been running fine, until earlier today - I noticed the turbo noise had stopped, lots of black smoke under about 2500rpm, and a complete lack of power under 3000rpm.

Bit of a pain when living up a mountain and needing to get home


I plugged in my fault code reader, and got a P0236 error code, but no engine management light coming on.


Things I've checked:
- turbo hoses are all tight
- MAF is clean
- turbo waste gate actuator moves
- air filter is clean


Any ideas where to look next?

Thanks!

 

[Cinq999]

I think P0236 is turbo overboost pressure.... I'm guessing measured by the MAP sensor on the back of the inlet manifold.

I had a loss of power which a new MAP sensor sorted.... although it may be worth giving yours a clean first.

 

[koalar]

Hi everyone,

I have a 2006 4x4 PandaVan with the 1.3 mjet diesel. Everything has been running fine, until earlier today - I noticed the turbo noise had stopped, lots of black smoke under about 2500rpm, and a complete lack of power under 3000rpm.

Bit of a pain when living up a mountain and needing to get home


I plugged in my fault code reader, and got a P0236 error code, but no engine management light coming on.


Things I've checked:
- turbo hoses are all tight
- MAF is clean
- turbo waste gate actuator moves
- air filter is clean


Any ideas where to look next?

Thanks!

can you see it move when the engine is started

can you see it move back a few seconds after the engine is switched off

 

[whoopsie]

Thanks all for the responses - I took the MAP sensor out, was covered in filth, gave it a good clean - but no change.

Double checked the turbo actuator is moving correctly when car is started and turned off, that all looks good.

Will order a new MAP sensor and see how that goes!

 

[DaveMcT]

If the turbo over-boosts the ECU will cut fuel and you get no power. Moving actuator does not mean the turbo waste gate is opening. The variable geometry type are a pain for jamming.

 

[koalar]

does your scanner read live data ?

Check housing isnt cracked

 

[whoopsie]

Thanks again for the replies. A quick update - have fitted new Bosch MAP and MAF sensors, zero change.

Pipes all check out OK, so I think next step is to remove the turbo, check the casing, and have a look inside.

 

[DaveMcT]

Black smoke suggests no boost pressure. A split hose will do that but often looks ok when it's not under pressure.

 

[whoopsie]

Black smoke suggests no boost pressure. A split hose will do that but often looks ok when it's not under pressure.

Agreed - given they're not that expensive, I'll replace the hoses when I get the turbo off to inspect it.

Even if they are fine, I don't trust 15 year old hoses to still be fine once refitted!

 

[cala]

Hi, How did you get on ,was the problem in the turbo itself ? i have same problem on panda cross 2015

 

[varesecrazy]

@whoopsie

 

[koalar]

Hi, How did you get on ,was the problem in the turbo itself ? i have same problem on panda cross 2015

if the engine is the same

It should be a stuck waste gate actuator or a blocked tube going to it

Plenty of threads already on fixing these. In fact a block tube came up in the last few weeks

I think your engine is slightly more complicated with variable vanes so that throws a bit more into the mix

You might be better to post in the post 2012 section

 

[whoopsie]

I had a cracked casing on the turbo, replaced with a new unit. Also found a tear in the hose going to the intercooler, the one that's low down at the front - a branch had speared up while offroading and punctured it. Ended up replacing all the hoses associated with the turbo as well as the turbo itself - sorted the problem and has been running fine since.

 

[DaveMcT]

Thanks for the report. I had similar symptoms with a VW TDI. Thats was also a split turbo hose. It had a Gaffa tape quick fix that lasted 6 months before the replacement hose came through.