General Stilo Error code P1237

[JtdJom]

Hello somebody knows what the error code p1237 means.mijn fiat dealer has reset everything but reported engine fault will come back and sometimes everything is ok.Car drivers ok.mijn fiat dealer had never had a error code p1237.Its a stilo SW jtd 16v 140 horsepower.DO NOT MIND ON THE LANGUAGE ERRORS I COME FROM THE NETHERLANDS.

 

[Davren]

Hello, welcome to the Fiat Forum.

All I can find for P1237 is that it is a manufacturer code for "Fuel Pump Secondary Circuit Malfunction" What it means in reality is anyone's guess.

Dave.

 

[JtdJom]

Hello, welcome to the Fiat Forum.

All I can find for P1237 is that it is a manufacturer code for "Fuel Pump Secondary Circuit Malfunction" What it means in reality is anyone's guess.

Dave.

Thats the problem nobody knows where to look for!
but never give up.

 

[john55]

JTD 16V engines are quite rare so not many people have experience of working on them. If it was an 8 valve, I am sure you would get lots of suggestions. If you find the solution, let us know as I am sure others will suffer from it in the future.

 

[JtdJom]

 

[JtdJom]

 

[JtdJom]

 

[JtdJom]

Summarize leak at the connections between the layers and see foto.ik've bought a new barrel, I must still buy two new snakes, is now with rubber tape over on it.
After the start the error code(engine fault)was away after 15 seconds.
I hope that is the problem.

http://www.webshop.luccio.nl/OBD info NL.pdf

Error code P1237 Injector 1,interruption=not enough pressure

 

[john55]

That looks like a nice diesel leak you have there. Hopefully it will solve the problem.

The injector leak off pipes fail on 8V JTD's too, but I don't think they produce any fault codes.