sudden shutdowns alfa 156 1.9 JTD 115hp

[giary74]

Sometimes it happens that the wheel cylinder pressure regulator blocks. Try not harmful and does not cost you anything verification.
You should turn with active diagnosis and check the opening in % of the control.

If it can be useful as a clue, I have observed that on the occasion of shutdowns there was also an alteration of the scheme of minimal barely touched the accelerator

[ugoboss]

quoto friends for the draught of the vessel and ventualmente the regulator is malfunctioning (that, of course, on the high pressure pump is not the one in the tank....that does not exist) but I'll also give you a question since I have not found a brief in your explanation, how much naphtha had in the tank.

[giary74]

today I realized that the tank will only arrive the power to the pump and the contacts of the float

When you ? the problem the first time, I had more? half a tank.
This morning I location 16 km of road and urban/extra-urban monitoring with the ELM, the pressure regulator and the sensor...
the machine ? behaved very well (doesn't it ? off) and the value it has had a swing from 1% to 27%; however, shortly after the party I saw that for a moment he had a negative value (if I'm not mistaken -5%). It's normal cos

[biondo83]

today I realized that the tank will only arrive the power to the pump and the contacts of the float

When you ? the problem the first time, I had more? half a tank.
This morning I location 16 km of road and urban/extra-urban monitoring with the ELM, the pressure regulator and the sensor...
the machine ? behaved very well (doesn't it ? off) and the value it has had a swing from 1% to 27%; however, shortly after the party I saw that for a moment he had a negative value (if I'm not mistaken -5%). It's normal cos??

I just made a diagnosis (with the car in motion in the regime urban/extra) and negative values are not read. I hope I can help you with this feedback:

Opening pressure regulator
%
16,34
23,13
34,71
68,12
19,23
46,78
16,34
15,24
16,19
21,07
17,01
16,16
16,66
27,74

[Backgroop]

I just made a diagnosis (with the car in motion in the regime urban/extra) and negative values are not read. I hope I can help you with this feedback:

Opening pressure regulator
%
16,34
23,13
34,71
68,12
19,23
46,78
16,34
15,24
16,19
21,07
17,01
16,16
16,66
27,74

I would recommend you take it apart without doing tests, etc., by checking visually and with pressure gauge

[biondo83]

I would recommend you take it apart without doing tests, etc., by checking visually and with pressure gauge

Perhaps you have mistaken the user giary with me. :-P
I've only made a diagnosis, to help the user giary cos? confirm that negative values do not there are.

[crteam]

I would recommend you remove the fuel pump and check the fishing if clogged then clean it in the pump immersed not c'? no sensor parts from the tank to check if there are impurities?, then to the filter and high pressure pump disassemble the regulator and clean it if dirty.. checked the pressures with a gauge, sometimes the problem is in the fuel oil dirt

I Backgroop often sio creates a patina that does remain open on the washer and turn the empty

check the pump behind the full open it and check the red rubber filling the basket

[giary74]

I just made a diagnosis (with the car in motion in the regime urban/extra) and negative values are not read. I hope I can help you with this feedback:

Opening pressure regulator
%
16,34
23,13
34,71
68,12
19,23
46,78
16,34
15,24
16,19
21,07
17,01
16,16
16,66
27,74

in fact... I would imagine that the negative value was not your normal...
Just for curiosity?, have you used multiecuscan with the ELM 327?
You set the numeric display or graphics?
I do this question why? I noticed the negative value with the detection numerical, before that was to the graphics (I started recently).
Then I it seems to me that the graph would contain negative signs...

[Alfiuccio]

I support the answers of all my colleagues, and I add my opinion....*****and you already said check the pressure pump and low pressure (2.5 bar) even if you wrapped it lacks the scope.....and then I don't want to exclude the injector maybe between the 4 someone nn does its job.....a client of mine complained of various shutdowns in march and after several checks it was the injector that was leaking pressure.....the car after shutdown immediately restarts?

[giary74]

I support the answers of all my colleagues, and I add my opinion....*****and you already said check the pressure pump and low pressure (2.5 bar) even if you wrapped it lacks the scope.....and then I don't want to exclude the injector maybe between the 4 someone nn does its job.....a client of mine complained of various shutdowns in march and after several checks it was the injector that was leaking pressure.....the car after shutdown immediately restarts?

Well, let's say of you. On the first start attempt is still on, the malfunction indicator light engine, while the second starts again and goes on as if nothing had happened.

I hope that's not the injectors, otherwise sell it!!!!