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View The Full Version : fiat bravo 1.6 120 hp faux recovery..



michele30
I have a bravo that ? come to me in the workshop after the other for a strange defect, is a defect in strange and sporadic, that is, the lady that help the happened more than once that went in ( recovery) on the highway look at the case when it was overtaking.
In the diagnosis from the air flow meter , they have already replaced both the air mass that the sensor on the manifold, I, instead, this Friday I replaced l solenoid valve that controls the turbo why?!? the fault we did it only once and when it was a plan, but ? so strange.. e.g. I did coming out of a step then the first and second then giving it the gas does not have the tablet, but gradual, the machine is not walked, sluggish sluggish as when ? in recovery, giving it all the gas ? changed nothing, then lightened the accelerator and the car ? back ok without any more to do with the defect , at least for those miles that I did.
I don't know if I did not understand in the explanation, is there ? never seen anything like that?
Proven with a diagnosis attached has not made a fold.
What I don't understand ? why? deverilevare this defect, I think as you close the butterfly valve and then suddenly it re-opens.
What do you say?

marcogti
24-05-2014, 22:27
The machine ? the original, or has had mdoifcihe type egr, fap, or other ? sempba almost a recovery for an overboost too high that could be related to a problem with the variable geometry of the trubina.

michele30
To be honest, the car I do not know if ? mapped , I have not read the flash.
for? why? then comes out a defect on the flow meter ? And why? does not stay on the rec?very, according to you?

legendaryslave
the exit of the defect because it pulls less air than you expect-now it's up to you to find the why

giuseppeturbo
how many chilomerti has the machine? test to see if the axis of the turbine has the game ,both axial shoulder ,if the turbine is not pushing, not sucking in air , see if the egr is not stuck, and then I can't remember if that machine has the butterflies, check out the butterflies on the collectors

SandroMarciano
this motor is provided with the swirl, I still would check the variable geometry, me ? the same happened on a mazda 3 1.6 hdi for? reported low pressure manifolds, but the problem (as it was) was identical to yours!

ugoboss
in the meantime, what do all the tests recommended, chiudigli also the egr with a blade.

michele30
Thank you for the info , however the machine ? new you can say only 80000 km .
The bad and the ugly ? that this defect does when she wants to, doesn't it ? you can carry it in certain conditions to make them do so, why? the breast with the computer in the car, see what happens in that moment.
I said to the butterfly valve, the one at the entrance of the manifold, why? I ? happened on a insigna that worked well from the active diagnosis, and then when you were starting was always closed and he didn't, of course ? a different thing, however, by following what it says on the defect leads me has to think so.
Then give an eye to the geometry, if you see anything.

manu90
I had success with a similar problem on a volvo xc90 after about 200 miles of highway had lost the power, the client noticed only when he was overtaking. Crashed the variable geometry in this case

beppe.c
that cod gives you a error?error-meter value is too high I low?
I purirei or disattiverei the egr valve I think it is them with the problem.

giuseppeturbo
If you would have a obd log or a device that records the journey'd be easier to go back to see what you and success, however, attenziona turbo and egr

michele30
Then the egr diattivata, with the machine I have done so many miles and I have not found anything.
I gave the car to the client, has shot quite a few highway everything is ok , it tells me that the defect of the first not is more , but ? slow when part from the "crossroads"...
I redid the diagnosis and gives me error P010F Inconsistency mass air/mass air flow sensor.
I state the defect ? the same that he gave every time before, but I'm not sure that I had deleted after you have disabled the egr.
The strange thing ? she now seems that the complaints of another defect ( seen that we do not have more made ) .

ugoboss
even if you turned off from the map if it was a little open for locked you can give that a defect in the start, chiudila also physically.

michele30
Are 100% sure that the egr valve ? closed why? ? new at least to the last piece, let's say that where c'? both electrical and mechanical, but I know that this system of the garden also has a valve say pneomatica before this in order to cool the gas and wondering how the defect came to the mountain , after having already replaced the egr valve, I thought it right to exclude the case of recirculating gas.
Only now c'? this problem you have low... with this error that I do not know if ? released before or after deactivation from the map, now is running safely without errors and egr disabled.
what do you say?

Backgroop
Smontala ? proofread it.. this recirculation system, exhaust gas system delk'garden g
he has a problem, on the heat exchanger front for instance the case for the deformation of the plastic of the cover, a deformation that is drawing the cold air that comes from the intake manifold into the chamber where the exchange takes place the egr, the air is cool so fast the exhaust gas that become cristallizati and hard as a stone.. these gas induritti not only are pasted on the walls of the heat exchanger but you paste on the stem of the valve motor egr blocking it immediately.. I ? happened on the pi? engines with this system in a car well I mounted the 3 egr valves all blocked in just a few kilometres away, in short, was published as an information service by fiat, car is in warranty I solved it by replacing all of the heat exchanger full of egr, those out of warranty by unlocking the egr valve and successimente excluding it from the ecu

sa80libero
it could also be a wiring problem mass air flow sensor, try to see the continuity? the cables between mass air flow sensor and the engine control unit

ugoboss
08-06-2014, 23:01
Are 100% sure that the egr valve ? closed why? ? new at least to the last piece, let's say that where c'? both electrical and mechanical, but I know that this system of the garden also has a valve say pneomatica before this in order to cool the gas and wondering how the defect came to the mountain , after having already replaced the egr valve, I thought it right to exclude the case of recirculating gas.
Only now c'? this problem you have low... with this error that I do not know if ? released before or after deactivation from the map, now is running safely without errors and egr disabled.
what do you say?

you are 100% sure but you have a car that recalls the lack of egr stuck partially open, I can't remember pneumatic valves of this model, and if you read the response of Backgroop you confirm the problems of these egr, it takes 5 minutes to close it physically, and to remove the doubt but it seems that it is easier to write on a forum instead of following the advice.

michele30
Hello, I have not the fault of the egr valve absolutely I have the defect P010F Incongruity mass air/mass air flow sensor I know that in some cases it can be the egr, but here ? so difficult why? :
1) with egr valve old, same problem
2) with egr valve is new and it is closed by the map, still have that problem.
? for the one that I have a hard time believing that there is still the problem, and then you here of these engines, where the close physically?
C'? other that escapes me but I do not know what since the defect does this only when she wants , maybe even after 100 km example

Backgroop
Hello, I have not the fault of the egr valve absolutely I have the defect P010F Incongruity mass air/mass air flow sensor I know that in some cases it can be the egr, but here ? so difficult why? :
1) with egr valve old, same problem
2) with egr valve is new and it is closed by the map, still have that problem.
? for the one that I have a hard time believing that there is still the problem, and then you here of these engines, where the close physically?
C'? other that escapes me but I do not know what since the defect does this only when she wants , maybe even after 100 km example

Rismonta the Egr valve and check it out physically leaving the plug attached to it and doing a test actuators, see if it is still open