Hi to all, I apologize in advance if this armomento I have not guessed the right section.
I do not quite understand the concept of Correction of the injectors and the right way to interpretatarlo.
Thank you in advance:confused:
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Hi to all, I apologize in advance if this armomento I have not guessed the right section.
I do not quite understand the concept of Correction of the injectors and the right way to interpretatarlo.
Thank you in advance:confused:
you should,for?,first specify what you mean you "fix injectors"...are you referring to the time of injection??or what??
This and the advance or delay of the injector is commanded of the ecu of the engine based on the state momentario of the engine(temperature,understanding and.................)
From the diagnosis, and you see the values for the correction of each injector, they should stay within a certain range if I'm not mistaken - 2 and 2. if they exceed these values c'? something is wrong..
pi? close to 0 are better ?,when you exceed -2 to +2 starts to think of some problems,correct even when there are mechanical problems..
right with multi ecu scan, you can check without any problem.. :)Quote:
Originally Written by sportknight
+/- 2.5, and in the standard exceeded that range begins to dismantle them and make them revise remember that the addition/subtraction of all 4 injectors must always be 0
then this fix,+2 -2, or zero to be precise as injectors or jun of l?,according to you,what can? be?? cocozzielli fried??oranges and tangerines??what??
as far as I know I also confirm the [+2,-2], yesterday they told me about an additive that basically do miracles, there was an injector completely perfectly calibrated, ? cost 25€ but it has done a miracleQuote:
Originally Written by sportknight
it will be the one using the pompisti,but if this miracle lasts for a long agrees to use it otherwise you spend less for a reviewQuote:
Originally Written by ecuboost
not, and said that an injector which is (by assumption) +3 and a -3 are two revise/replace a correction of one or more other
hello munro correction injectors is used in diagnosis and as already said, must be close to zero i.e. a correzsione say to an optimum around on all four cylinders around 0.30 0.50 mg/cycle diesel....example if a diagnosis is cylinder 1 = -2,00 mg on the cylinder 3=+2,00 mg the cylinder that should not be, and is always in the positive, never the negative in practice the lever to the cylinder 1 for conpensare the cylinder 3 then evaluate where is the fault, if it is an injector, or, for example, a low compression on that cylinder....Quote:
Originally Written by munro
who told me he took it from pompista,but You know the brand?Quote:
Originally Written by mafani
according to me tunap and the best product on the market, and really does miracles .
no product works wonders,as told by giarras in another post help if used with some frequency
Practically a friend.the he said,had an injector that squirted too much Fuel ,the pompista that Has made the diagnosis has given him that additive and now ? for a few years is quiet
lourdes water!:D
Hail progress,I then remove one of the curiosities?:you tried this additive (TUNAP) or you're writing spam to get the 80 massage ?
About that in another post we were talking to additives for cleaning the collector of the intake, and if the bed is good in my opinion and that need to be removed to clean but now you have the case and another, and before I talk about informs you for the TUNAP products and you will see that you are wrong
ok now I have the ideas even more? clear, then to diagnose the good fuonzionamento one injector as well as to take into accountQuote:
Originally Written by alfetta80
the fix you need to get help in controlling the reflux of the fuel to each injector?
I fully confirm the values in the diagnosis that must be the injectors. Must be close to zero and never was positive. I also remember, and correct me if I'm wrong, that any disallienamento of the same pu? cause of the vibrations to the cabin with the machine stopped. C'? who says that at that point, it should be changed to misaligned or all 4. There ? also all the possibilities? try a alignment with a bracket (cos? I explained it to a mechanic), but I do not know if ? true. Could it be?
I have a doubt, but in order to measure the reflux how can I do? in diagnosis, it can measure only the value of the injector, but not reflux.
do not spam and I think that they don't do miracles because we use the products you have mentioned for several years, but believe me, I have never seen results (the company I work for and stubborn, or has a revenue in the sell, but another story), however, we also have a line professional (according to them) i.e. the one with the equipment to be mounted on the plant, diesel gasolineQuote:
Originally Written by neo
[QUOTE=neo;31031]Hello progress,I then remove one of the curiosities?:you tried this additive (TUNAP) or you're writing spam to get the 80 massage ?
then allow me to disagree with the thought of one who is registered after me, and he has passed the threshold for already a bit ..........
Certain that when there is a problem of a mechanical nature, we cannot expect miracles ,but if it comes to cleaning tunap okay.Then we should be in height to decide.
Quote:
Originally Written by pitty
hello if misaligned, you mean the correction out of range, them you should always dismantle them and take them to the pompista. instead, if dissallineati you mean mounted evil I tell you that on the common rail can not be, because they are located and the heel is not adjustable, but I'd be curious to know what it remains determined to your mechanic
while acid reflux use of burettes, laboratory off the return of the diesel on the injectors and make it flow in the burette and make them the comparison of all 4 injectors
hi vorri specify that the injector is at the heart of successful operation of a diesel engine to have the results in performance and power consumption. laecu change the correction with the opening times of +/- on the basis of the effort pwm coil but it is the nozzle that must always be perfect.as the additives, if used regularly, prevents wear and tear from a diesel fuel with low sulfur content
I have never used any type of additive. I was wrong, until you have today?
Dissalineati I have no idea what that meant. The car was an a4 2002, so it's not a CR, but a TDI. He told me that the vibration that is felt in the passenger compartment could be caused by an injector misaligned or defective. Before replacing an injector, you could try that thing with fee equal to€30. I remember that 5 years ago I did not have even that expense, and that the car today (I gave it to my father) she is still walking in the same way and without any problems. He did, and since then about 30,000 km!
It would be interesting for me, to understand what additive take for my a4 2008 ? a CR!
The control of the injectors with the method of the reflux ? reliable even for the injectors piezo?Quote:
Originally Written by progress
Quote:
Originally Written by rondella72
I would say to you as far as I know, even if, up to now, I've been working on, should have a reflux more and more violent compared to an injector coil toroidal would expect, however, an opinion and an explanation from an industry professional or a pompista
try not to unplug anything on the piezo injectors with the machine in motion! this type of injector is working normally open and the electric and closes it if you go to unplug the power supply or else the engine is to be almassimo of turns up to a possible rupture
Right good point never try to detach the connector in the bike because it runs to leave the injector open and sprays always diesel and as rightly said robby you are serious risks,Quote:
Originally Written by robby51039
everything happens because? this type of injectors to work with the piezoelectric cio? from the control unit receiving a command to open and another to close the injected diesel
and those toroidal instead, how do they work? those that receive electrical impulses. In practice those toroidal should I be having you in my 1.9 tdi. Interesting!!! You never finish learning!
in broad lines, the injector has a needle inside, and the toroidal coil and a ball of copper wire cross-section and length dedicated immersed in a kind of transparent varnish this is crossed by the current generates a magnetic field which moves the above-mentioned needle
I few days ago I just saw a picture with all of its parts and there I realized granch?. I had to do the mechanical great... too bad, I would have liked a casino. If you need help in sicily are there.. I would also do for the hobby!
if you have a friend and acquaintance mechatronic (so they call' the category now that crap:() lets you place them and gain experience, hoping that it didn't tell you to go fora from the ball :D
Ah well... if here in the forum c'? someone who needs help to speak. X only hobby, and during the afternoons of pi? since? I have already? a job! Even on the weekend!Quote:
Originally Written by progress
I read it just now alfetta80...meanwhile, I thank you for having clarified precisely what it is about...more specifically to that unit? d measure we are talking about...even if I have to say that the speech mg and more attributable to go vw tdi pd while for the common rail would be better to speak of millimeters cubic..***** unue, this correction that the ecu f? even "hearing" if a cylinder more or less compression it seems to me veeery strange...I think that the engine and its cylinders,one or more, they can also be completely seized,gone,macciulati,etc,etc...but the ecu knows that for a given transient load on the engine,rpm, and whatever else is always the same amount? the injection has to give...the speech correction according to me ? more than a calibration that the ecu f? depending on the code ina injector to a question of the balancing of the cylinders in order to have an engine the more regular as possible...and I read that the ec is able to manage this calibration, the end say,up to a maximum of 30% of the wear and tear of the injectors...everything else, according to my humble opinion are talking to the wind....Quote:
Originally Written by alfetta80
A control unit is able to understand what'? the cylinder that does not go through the speed of rotation of the motor.Quote:
Originally Written by munro
..mmmhhh...and then tell me on a perfect engine that st? at 1000 rpm engine with 1 or 2 or all 4 cylinders, which should not be but that always turns to 1000 turns per minute...the ecu as farebe to figure out which cylinder is not v???Quote:
Originally Written by rondella72
spigamelo please..why? I don't get it....in fact, I didn't know of these unsuspected capacity? diagnostic of the ecu...
the engine is not running alone...are the injectors that allow it to run at 1000 rpm...
I don't remember about the diesel but the petrol there are sensors of detonation that you can understand, to the control unit if there are no shots,depending on the intensity? understand also that the cylinder c'? the problem, and then adjusts the fuel mixture....
in fact, then the diagnosis ? able to tell you exactly which cylinder has a problem...
based on engine speed,accelerator pedal (for the first two mentioned, ask yourself why after a certain number of engine revolutions can no longer calculate the correction) pressure pipe,injection time(msec indicates and calculates how much time is remaining in the injector open during the phases of injections per cylinder) from here understands that the time of opening more pressure flute(on the basis of the pressure indicates how much diesel ec in the flute and so far as I inject in the early stages of injection indicated in msec etc.Quote:
Originally Written by munro
I will not dwell otherwise ce to write so much
ps the explanation and a little home-made, but much more' technical