Alfa 147 P0235 115 hp 1.9 8v jtd

[pabloescobar]

This machine comes back to me in the workshop after some work that I did and now it shows a error P0235=supercharging pressure. I get on a car date ? the map sensor then unmount and when they pull it out ? all clogged with slime. At this point, clean it, and I'm going to try the car. When it comes about 3000 rpm, turn on malfunction indicator light engine then replace with a new one but did not ? changed nothing. And' as if it was faulty, however if the car door gently for not doing'. C? to say that the collector of apirazione putting the screwdriver in ? full of slime.

Any advice

Thanks

[marcusmagic]

the machine and mapped??

[marcusmagic]

controls the geometry of the turbine diagniosi at full load should be around you 25/27 %..and also check the sensor well,maybe, and in short I miss signal to the ecu...let us know.....

[Backgroop]

the problem and the pressure turbocharger, controlled tubes of depression that depart from the vacuum pump and go to the turbine there? someone broke..

[alberto.bf]

Watch at least one tubbetto reversed or lergemte broken on the attack...

[marcusmagic]

yes, I backgroop,it can also be a tube of the depression!! remove the filter and check for well under a pressure valve with tubes,maybe, and that is wrong...

[pinotuning]

also check the pierburg

[pinotuning]

I mean, the vgt solenoid valve

[neo]

variable geometry

[michele30]

The variable geometry is angry every now and then, however, also check the hose from the depression that comes from the pump and that the depression is good , if I'm not mistaken it should have a trevie connected to the hose of the brake booster, mi ? happened to be closed , only the small one that goes to the valve and the control with a tip from 1.5 controls.

[pabloescobar]

Thanks I think I got great advice for? not can I still do the checks, why? my client in order not to leave it the it is a pleasure to walk into that state. This guy at the moment prefer to walk so then when do you know? or you stanchera I look at it.

I would like to thank you and I think of that ? positive speak of our experiences and help us

[marcusmagic]

you will tell him who walks that way! when you bring the machine will have more problems of expected...:D and the head that wears the legs and feet....

[munro]

The variable geometry is angry every now and then, however, also check the hose from the depression that comes from the pump and that the depression is good , if I'm not mistaken it should have a trevie connected to the hose of the brake booster, mi ? happened to be closed , only the small one that goes to the valve and the control with a tip from 1.5 controls.
I...the same to me ? happened to me on a couple of cars...it two alpha..a 147 ? a 156...

[progress]

check the tubes, then the wastegate if it remains jammed better if the test is made with vacuum gauge, otherwise an overboost solenoid valve

[Exside81]

When it comes out that error if you are not ? mapped fiata some tubing or sleeves intecooler and everything that is inherent in the turbocharger.
If ? mapped you need to raise the bit of the maf sensor

[pabloescobar]

Thanks to all

[pabloescobar]

Where is the bit of the maf sensor

[Exside81]

On the 147 trovebbe be 075216 The bit 962 need to bring it to 1003
try and let me know

[pabloescobar]

Thanks as soon as it returns I look at it

Again, thank you all

[pabloescobar]

Thanks to all of make? the various tests

[Matty23p]

Guys, sorry if I open the post some of you may know up to how many bars of turbocharger reads the map, before the failure??

[Exside81]

As you have brought the bit? Now you failure?

[gcmotor]

Unfortunately, this type of engine is of these jokes, the variable geometry of the tubes, consumed, mud manifold, valves, etc.. maybe before a good clean and then you see the rest

[francescosparco]

hello x for case, the problem is the from of 4 and 5 gear between 2500 - 3000 rpm to meta throttle?

[jack91]

To me also gave

[huntersub84]

I have gone mad long ago with the 147 jtd original...changed all the sensors with various tests and in the end it was the pierburg that works with the suction pump, and controls the variable geometry. Practically there was a delay in the management, and then the position of the geometry led to pressure peaks, which they sent me protection turbocharger

[jovandj]

Very common problem with the pierburg off or the tubing is cracked, or intake manifold very, very dirty idem air sensor (map) dirty or perfectly calibrated....little tip can sometimes be the actuator vgt the fungus to be clear that it breaks, preventing the proper management of the turbo

[enzopezzano]

Change here change, until it becomes the centre!!!!! But a road test with a diagnosis..... and too difficult.

[huntersub84]

I agree. I at the time to first understand what it was, I had made a log with EDF on the road, I saw these peaks and after that I realized that it was a problem reading the sensors, but a problem of delay of the actuator

[crteam]

also check the air mass meter that can? does the sti jokes

[alfa147jtdm]

The maf is not error-pressure turbine.

[lupeen90]

hi guys!!! a friend of mine has the same problem. How ? fixed then??

[Marcuc]

On the 147 trovebbe be 075216 The bit 962 need to bring it to 1003
try and let me know


Hello Exside81.. but by moving the bit as you say, what you go to edit the map?
excuse the ignorance but I am not an expert and I'm starting now to map

[cele]

The P0235 ? an error of plausibilit?, there are various in-depth checks to do, first of all, the control in the wiring of the Map voltages and continuity, then it verifies the correct operation of the system, geometry, egr and exhaust clogging for and cat, makes a diagnosis and see what the range of engine operation occurs the error

[cele]

The maf is not error-pressure turbine.
You are wrong not him directly, but the ECU is calculating the data received from the MAF and the MAP if you do not fall within the certain range of operation then takes the recovery in this case, since an error of PLAUSIBILITA the P0235 jump out, repeat ? the breakdown is not easy to find, but with the necessary controls to jump off, I speak of course of car ori not mod

[costa68]

Now the topic is very dated and so I do not think that my intervention will help the colleague, but I still would like to share with you "colleagues" my experience with regard to precisely this issue, in the hope that it will be useful to a colleague who is facing a similar case.
On an alfa gt, I fixed by replacing the solenoid valve turbo pressure.
In practice, the solenoid valve ( the valve inside seized ) gave pressures wrong and resented the maf, as a result was the light of the maf to light up but the problem was that in the solenoid valve.
A dear greeting to all and good work.