Hello to all...I have a problem with my crv 2.2 of the 2007.....same engine as the civic. The cold part very well. But when the car warm remains a 10-minute stop, when the turn back on, it takes anke 7 seconds. I state that not to errors in diagnosis. The car is defappata with the egr off. Grz
this problem and is presented in my alfa 147 which I have taken recently.
1.9 JTD 116cv.
cold put it into motion immediately....hot it took more time then to worsen it further.
until the turbine has not given in and I discovered that sputtava oil side mass air flow sensor and not the intake side or exhaust.
same problem with a 156 a few months ago to a friend....but the turbine had not yet succumbed......we soaked in the hot oil side of the mass air flow sensor and was late in starting.
the fact that you did not smoke because of the deposits on the filter in warm, clogging the mass air flow sensor and cold just like coke on the filter.
maybe on your own you have a similar problem......no DTC because you are within the limits of tolerance by not to trigger errors.
then I have aspects that the tolerance is exceeded for a DTC, or try to do this check and see that it is not the same problem.
Still, you can put a flight recorder to see what happens to hot when put in motion.
for as absurd but to me, and did.
I have written in the past because they are waiting for the turbo again and I have various maintenance to do, but I repeat that it is fixed on a 156 with the same engine and same problem.....
I don't know if I can help, because the system and the ec.
hello riox, but when the part after the problem is black cloud?
you say the egr off and defappata... the problem was more or less along with the remapping or mooolti Km after?
moving the accelerator pedal while starting does it change something?
the car apart from this problem how is it going? the mortore always runs well? makes? smoke? how many km on the rump?
apart from the "banality" filters... would check first the impedance with a tester on the pins and thermometer in the tank, the water temperature sensor... the imperdenze dichirate are approximately 3,400 ohms at 5 degrees and about 350 ohms at 80 degrees
I don't know if that car has a motor with step-by-step of the minimum (I think no) but if there was I would look at one of the first things.
not having dtc you have to your heart's content of tests... from the control of the motor position, throttle valve and values of the sensor position of this pedal (maybe with the heat respond with a stopping value or busted), the values of the mass sensor and intake air temperature.... all evidence the most simple of the measuring recirculation, diesel fuel from 4 injectors (which ruled out a couple of injectors that gocciolino as soon as soon, however, you should have a black cloud and beat in head start).
hope that help, maybe post some more info if you have not solved.
Hello, markx, I would like to ask you something.
That relevance of ec between the water temperature sensor and the difficcoltá cold start?
Also, if he values so much differents on the components that you listed then it would also have the dtc.
Always that have not been razed to the ground.
The evidence of the ecsc I find them less productive and can not go to hope to find the problem.
And a working method that I personally do not agree.
The best solution, and a flight recorder, and verify the parameters to understand the problem.
As I have explained and explained several times there are limits of tolerance that does not cause dtc or the same have been modified.
In this case, put a gold if the bdm even better and see if out of something, I repeat, flight recorder percapire what happens to warm.
I solved it.......after having tinkered with a diagnosis that allowed me to check all The sensors....I noticed that hot the sensor FRP I had a low pressure. Then I did the test on the rejection, and 1 injector, in particular, refused a lot. I did review The 2 injectors that ridavano more and the game is done. Grz for the interest.
As it turned, a flight recorder, or the monitoring!.Originally Written by riox80
Useful if it happens to others.
in my case it was the turbo that sputtava oil on the mass air flow sensor.
Great riox ke you have solved
... no I know why, but I fixed the head on the injectors that do not close for good and/or a higher pressure in the rail, however, was the opposite... and from the tests that I thought I was, but ran away from me to write, was also miusurazione real and encountered this pressure. ...I knew that the problem appeared only after ten minutes of engine turned off.. however, the important thing is that you noticed, and you have solved for time (spend a little more in diesel but')
Mustang, I enjoy getting a lot of your posts... I also appreciate the "Markx" but I must say ke I feel very close to Bakunin
I hope you understand why I pointed the finger to the temperature sensor... because then talk about the recordings on the fly as a problem with the set in motion I do not know I.... a sheet of paper and a bic to me, more complicated, less life... (if I find them)
the dish of the mass air flow sensor-dirty oil??? then it is a 164! ... or is it a 75 i.e. ? but then
I find it logical that my post have fun when we are confronted with a gaggle of incompetents who go to feelings!
This happens when you are not understood and not to understand in the slightest what you are talking about.
Of course, in electronics combined with the mechanical it goes to the beat of the tests and and normal that alka the end of the issue, you'll find him.
Because, of course, the trader wakes up in the morning,to a feeling, and resolve.
We are in the middle between total incompetence and complete ignorance.
"try this","if it is not to try so".
It is obvious that my problem is very similar to this caused the same error but different cause.
To read and obvious that you've never seen a 147 1.9 jtd where from the filter goes to the mass air flow sensor, and then get to the turbocharger.
Now instead of leaking oil in intake or exhaust this hot was poured HOT on the mass air flow sensor cause a significant delay in the mass in motion to heat.
When this is poured into the filter to cold start correctly.
The tolerance of the detection of the flussa of air was such as to cause errors.
The problem was discovered,and was possible thanks to a monitor with a flight recorder, not dismantling half the machine, and make trials unnecessary risk of causing other problems on an engine already kilometrato.
Open the bonnet of a 147, and designed the suction .
here is another material of fun!.
The extension of this discussion, just to avoid that, in reading the previous posts some of the neophyte's self-repair to blend the ideas.
Therefore, the precise is certainly the filament heat of the flow meter of the intake air system (LH motronic), also called a flow meter should be clean. Otherwise, regardless of the source, or the temperature of the dirt deposited, it is certainly a poor performance of the car.
It is also true, that depending on the mode of construction of this sensor, there are solutions to avoid soiling or self-cleaning of the same (high-temperature wire off of the picture to burn the oily residues that might be normally deposited).
In some cases, for a variety of reasons the hot-wire can be very smeared, making it necessary for the replacement of the sensor due to the sensitivity and the time required by the cleaning operation that it is not always possible, it does not guarantee an optimal result and may, indeed, be more harmful. (cleaning anyway you can try maybe with alcohol and cotton swab)
Different the question is for the mass air flow sensor, also a flow meter air abandoned (from my point of view) more to the costs of production for quality or reliability.
It was adopted in the electronic fuel injection of the first generation L-jetronic. Worked in a similar manner to the position sensor of the butterfly valve, namely: a plate positioned in the inlet conduit is integral with a potentiometer. Depending on the movement of the plate dictated by the quantity of air that passes through it, varies the voltage circulating in the circuit and is detected by the ecu, which is thus able to calculate the flow rate of the air.
More precisely, the mass air flow sensor is composed of 2 dishes, or a dish that is supportive and inclined with respect to the first 90 degrees (as if to form a L) that moves inside a closed chamber (called damping). the solution needed to dampen, as it were a shock, the float of all the leverage; that otherwise he would have waved like a flag at the mercy of the wind.
to this I said that in a mass air flow sensor and no problem can be imputed to the dirt and oil that is deposited on this.
both of these systems work in conjunction with the intake air temperature sensor often, but not necessarily, integrated in the flow meter, but having a separate circuit and is able to detect to the ecu, change in impedance, the temperature of the incoming air.
the latest generation of meters, air flow "hot-film", RH, SHOULD be insensitive to contamination from oil regarding the method of construction and technique of operation, this type of sensor detects both the flow and temperature of the inlet air.
call mass air flow sensor a flow meter MAF you can, as much as to call the thermostat, the thermostatic valve, it is not correct, but, subject to details of teaching, will never be a problem.
it is different when pride touches and merges with the arrogance... to 360 degrees you will always have problems.
A copy and paste of the interesting lesson already studied a long time ago we are always there,"should not", etc.,
I know enough of the ststema suction, and forgive the lack of precision by those who go to feelings.
I am not taking texts from books and paste or repeat it to memory but I try to understand what was written.
That said, the theory is one thing, to ****llo practical and another speech where the variations are many.
I'm sorry, but I disagree because as explained this problem and is presented in circumstances of all out of the box.
And I don't want to hear you say"never seen" not even the do-it-50 years.
Accodalo to the material to be fun.
Hello
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