Technical Error code P0236 & 0238

[theGman]

Hi everyone, I'm in need of some advice. The EML has come on on my dashboard and van in limp mode. The breakdown mechanic said it was codes 0236 & 0238. Both codes relate to turbo boost sensor, can anybody tell me where the sensor is located on a ducato 130 bhp multijet2 engine. The van is 2018 but the engine was replaced with a new turbo 17 months ago. Looking for ideas what to check as garage can't look at it until 22 August. Thanks.

 

[Communicator]

I am not familiar with the 2.3 multijet, but if you read "absolute pressure sensor" for "boost pressure sensor", then I would start looking on the inlet manifold.

I am attaching details of the Bosch sensor, but do confirm part number.

 

[rayc]

Any help? https://www.fiatforum.com/guides/map-sensor-location-and-multiecuscan-data-2017-twin-egr-2-3.904/

 

[theoneandonly]

Two questions
is it a conformatic?
If you get to the MAP sensor photograph the part number and check with Bosch if its the correct one. It is known that some were fitted with a part not intended for Ducatos.
be aware of

Ducato P0401 P0402 P0236 P0238 and limp mode its 2017 Euro 6, EGR changed, What do I check next | FIAT Ducato

Van is 2017 Euro 6 bought new , now with 26K on clock. Problems started this summer with dash engine light and code P0401 appeared on a country lane at low speed going into a corner so it would be low airflow going in to the engine as it wasn’t ‘working’. Bought FCR and cleared fault, happened...

www.fiatforum.com

this might not be relevent yet

 

[ER worker]

Hi, turbo boost sensor is behind vacum pump, right when you open the hood. I marked with yellow. You can see the vacum hoses

 

[theGman]

@ER worker, that's great thanks

 

[theoneandonly]

Turbo solenoid replacement

Words of Wisedom originaly from post by Fredastaire Open the bonnet. Now look behind the Dytech box to see a black painted drop bracket. Bolted in front of this bracket on rubber cotton reel antivibration mounts is...

www.fiatforum.com

This component is regarded as a consumable. The small rubber diaphram can split (like old CV carbs)

 

[theGman]

Hi, turbo boost sensor is behind vacum pump, right when you open the hood. I marked with yellow. You can see the vacum hoses View attachment 425676View attachment 425677

What is the part I've highlighted in yellow? I found a hose flapping around that looked like this?

 

[ER worker]

@ER worker, that's great thanks

Check the vacum completely, and if boost sensor is heating too much, then replace it with a new one, or used one.

 

[theoneandonly]

Thats the air filter asciociated with the solenoid. it should be located high up behind the scuttle to stop water getting in. if its wet replace the entire sensor they come with a new filter.

 

[ER worker]

What is the part I've highlighted in yellow? I found a hose flapping around that looked like this?

I think it's some kind of a controller or something like that, for the booster

 

[theGman]

Two questions
is it a conformatic?
If you get to the MAP sensor photograph the part number and check with Bosch if its the correct one. It is known that some were fitted with a part not intended for Ducatos.
be aware of

Ducato P0401 P0402 P0236 P0238 and limp mode its 2017 Euro 6, EGR changed, What do I check next | FIAT Ducato

Van is 2017 Euro 6 bought new , now with 26K on clock. Problems started this summer with dash engine light and code P0401 appeared on a country lane at low speed going into a corner so it would be low airflow going in to the engine as it wasn’t ‘working’. Bought FCR and cleared fault, happened...

www.fiatforum.com

this might not be relevent yet

No, it's not comformatic, its 6 speed manual. The egnine, turbo and injectors were all replaced December 2021 so hoping its not a major component.

 

[theGman]

Thats the air filter asciociated with the solenoid. it should be located high up behind the scuttle to stop water getting in. if its wet replace the entire sensor they come with a new filter.

Is there anyway to open up the filter and see if it's wet?

 

[theoneandonly]

Is there anyway to open up the filter and see if it's wet?

Don't know not tried.

 

[theGman]

Hi, turbo boost sensor is behind vacum pump, right when you open the hood. I marked with yellow. You can see the vacum hoses View attachment 425676View attachment 425677

Hi, if I replace the MAP and turbo boost sensor does the ecu need any updating?

 

[theGman]

Just been out testing the solenoid, visually checked the vacuum hoses, no problems. Used multi meter to check resistance, got a reading of @16ohms? Can anybody advise on what reading should be? thanks.

 

[jackwhoo]

Hi, if I replace the MAP and turbo boost sensor does the ecu need any updating?

No

 

[jackwhoo]

Just been out testing the solenoid, visually checked the vacuum hoses, no problems. Used multi meter to check resistance, got a reading of @16ohms? Can anybody advise on what reading should be? thanks.

It's not as simple as reading the solenoid resistance, there are moving parts that need to ....move and air ways that need to be clear.

If in doubt substitute for a known good component- clear fault codes - test drive- check for codes etc

 

[jackwhoo]

Solenoid Valve 55269482 Fiat 7.03003.09 Pierburg

www.carparts-onlineshop.com

 

[jackwhoo]

Not suggesting you buy from them , the site gives pierburg(who make part for fiat) part number and fiat numbers.

Google the number and choose vendor.....only get a good brand NOT cheap unnamed.