View The Full Version : change mass air flow sensor
freddyecu
09-09-2012, 14:10
hello all I ask opinion on the mass air flow sensor or better on those famous patterns that are in a network made up of resistors and quaslche diode I can't remember exactly... then cut a few wires and connect them in another way...if you know if you need something, and if the machine improves anything ??
"thank you in advance...if you did not understand well what I'm saying, ' I can find the shema and attach it...
hello all I ask opinion on the mass air flow sensor or better on those famous patterns that are in a network made up of resistors and quaslche diode I can't remember exactly... then cut a few wires and connect them in another way...if you know if you need something, and if the machine improves anything ??
"thank you in advance...if you did not understand well what I'm saying, ' I can find the shema and attach it...
in the meantime, continue to participate in the forum constantly, then, surely, when you have all the requirements x download are sure that you will be able to solve your problem.
msport (exil77grande)
09-09-2012, 15:39
as already said by giarras if you participate in the forum you will be able to download what you need,also I ask you not to open the 2 post the same in 2 different sections, and to open the post in the appropriate section, which I now move,I thank you in advance.
freddyecu
09-09-2012, 15:46
if you can remove the one in the section on gas ... I accidentally open them but I had to open it on the section disel...thank you in advance...or if you tell me how to close a discussion... llo I do
msport (exil77grande)
09-09-2012, 16:04
if you can remove the one in the section on gas ... I accidentally open them but I had to open it on the section disel...thank you in advance...or if you tell me how to close a discussion... llo I do
all fixed up.
guidotacco
09-09-2012, 18:45
if the mass air flow sensor ? rottoi have to be replaced,though ? perfectly calibrated, c? the map, and you can intervene
hello all I ask opinion on the mass air flow sensor or better on those famous patterns that are in a network made up of resistors and quaslche diode I can't remember exactly... then cut a few wires and connect them in another way...if you know if you need something, and if the machine improves anything ??
"thank you in advance...if you did not understand well what I'm saying, ' I can find the shema and attach it...
hello all I ask opinion on the mass air flow sensor or better on those famous patterns that are in a network made up of resistors and quaslche diode I can't remember exactly... then cut a few wires and connect them in another way...if you know if you need something, and if the machine improves anything ??
"thank you in advance...if you did not understand well what I'm saying, ' I can find the shema and attach it...
Does not improve nothing is only when the maf and the fruit and should be replaced instead with this little show the values of the line
I personally tried it and I tell you that the maf is new and better
blackwolf76
09-09-2012, 22:35
Someone there is a hole... a little goes better, but then you ruin it permanently.
If the Maf ? new and works well, not c'? need to edit it otherwise it tricks the ecu into believing that the Maf face get more air and, therefore, the ecu injects more fuel by decreasing the ratio AFR with any smoke.
ecuboost
14-09-2012, 15:52
I don't know which model you have, I have one also with a variable resistance to the lives and works
If the Maf ? new and works well, not c'? need to edit it otherwise it tricks the ecu into believing that the Maf face get more air and, therefore, the ecu injects more fuel by decreasing the ratio AFR with any smoke.
In fact, the purpose ? that, we call changes casareccie, i.e. made in the house, it tricks the ecu is enriching with a little more? of diesel fuel, could we say that would be the brother to be bad of the modules that are sold to hundreds of euros, while this is achieved with four-pocket money
let these things casareccie :)
if ? broken change.. on ebay you pull them behind the revisions and working perfectly
lumaracing
06-10-2012, 11:12
if nn pi? the exact values you should replace it
isfedale82
18-11-2012, 23:15
if nn pi? the exact values you should replace it
I also should I replace, recommended the original?
guys sorry if I make use of the discussion, you know, as you do with the VAG to check the values of the mass air flow sensor?
cinqueturbo
20-11-2012, 22:45
I give it a clean with cleaner bodies to flaky and pressure sensors during the cutting and take a lot of % the read..:p
checcosassu
26-12-2012, 09:23
the best thing ? replace the sensor if ? diffettoso
blackwolf76
26-12-2012, 18:53
the best thing ? replace the sensor if ? diffettoso
of course... for? considering that there are also sensors that cost 200 euros, and not always with replacement, we have the guarantee of a result.
blushark
14-01-2013, 12:47
if you are considering changing the mass air flow sensor let lose and do not put even modules that are useless why? if they are not digital will always give a constant value to all the turns with dips up or down.
the mass air flow sensor it can be cleaned with the thinner nitro and back as new,trust me I tried a lot of times
Quoto on the inutilit? of the form. At the end ? how to apply a resistance, and it is not pi? taking into account the actual value of the air. The function of the mass air flow sensor ? what to do "mixture" as it was once made through the screws of the carburetors....
Summer, spring, winter and autumn, they were separate. With the mass air flow sensor, every moment ? for if, then from here one can see that the little/resistance, serves little...
guys, I also confirm.... the meter on, not only when he decreases the maximum value, but often it slows down its speed? in response, the other day I changed my 147 150 hp and I have to say that without touching the other ? much more schizzosa without considering that should be much more!!
blushark
21-01-2013, 22:24
guys, I also confirm.... the meter on, not only when he decreases the maximum value, but often it slows down its speed? in response, the other day I changed my 147 150 hp and I have to say that without touching the other ? much more schizzosa without considering that should be much more!!
it was enough to just wipe it off with thinner nitro, and returned again
definitely clean it or replace it and the best thing to do..
question:
but we are ..I have my mass air flow sensor means also went after various cleaning..that example output reaches max at 3.7v against 4.5v a mass air flow sensor in good condition
doing the calculations, it could not apply a resistance to return to the optimal value of the mass air flow sensor?
the said big?..and a question I have always asked.
blushark
21-01-2013, 23:08
definitely clean it or replace it and the best thing to do..
question:
but we are ..I have my mass air flow sensor means also went after various cleaning..that example output reaches max at 3.7v against 4.5v a mass air flow sensor in good condition
doing the calculations, it could not apply a resistance to return to the optimal value of the mass air flow sensor?
the said big?..and a question I have always asked.
you could put the resistance and maybe arriveresti to 4.5 v, but are you going to vary throughout the measurement range of the mass air flow sensor,you would get always the same mixture in all of the days with different temperatures,humidity? air etc
nuovaecu
24-01-2013, 20:27
even I tried with the the hole but lasted very little, however, was pretty good, so it's best replacement do it before.
My occasionally goes berserk, it reads a high value to a minimum, and the machine is accelerated...To the high seems to be ok, with the reading of a max 78g/S, it seems to me...
Kids time ago, I replaced one that had made a hole with a drill bit 6 mm, the trainer had said to the customer that with 40 euro had regenerated the air mass meter:D
you could put the resistance and maybe arriveresti to 4.5 v, but are you going to vary throughout the measurement range of the mass air flow sensor,you would get always the same mixture in all of the days with different temperatures,humidity? air etc
I had not thought to change atmosferisco
thanks for the explanation.
Sti illusionary preparatory...Start to give me more and more? the nerves. You feel superior to the classic mechanic that hardly makes you remain on foot, and then they are worse, much worse. Meno male che c'? also honest people in the industry?....
the real preparatory in italy you can count on the fingers of one hand.....all the others are mere assemblers of components are more or less good....
Kids time ago, I replaced one that had made a hole with a drill bit 6 mm, the trainer had said to the customer that with 40 euro had regenerated the air mass meter:D
I've never done it ,I felt someone was a hole in 2-2,5 I don't remember but I never thought to come to a hole 6mm
Cristiano75
29-01-2013, 06:39
guys sorry if I make use of the discussion, you know, as you do with the VAG to check the values of the mass air flow sensor?
The values of the mass air flow sensor in the engine section of the channel 10.
The first value on the left.
Cristiano75
29-01-2013, 06:52
I've never done it ,I felt someone was a hole in 2-2,5 I don't remember but I never thought to come to a hole 6mm
My mass air flow sensor has the hole if I remember correctly ? 1.5 mm.
I made the hole in the perch? after I purchased the car used (golf IV 130hp) I felt that seghettava slightly at full load of between 1800 and 2200. I went to the VW and vag, I tried it on the road and arrived just over 1000.... practically began to show signs of weakening.... The seller did not want to replace it and I didn't want to pay 170€ regenerated... then I perforated.... Now after 4 years the maf v?.. arrive at full load 1249,5 the bottom of the scale of the theoretical vag (prex turbo 1,55 bar constant, peak-to-1,60)... ? the original 300,000 km, of which 100,000 km made with the hole.... Smoke? Only a few little puff if lunges hit the accelerator after several km below the 1500giri... and rego88 s? as guido at low rpm...
Egr elimininata physically the maf d? a reading of 455mg to a minimum....
Someone surely storcer? the nose, but ? the thing + crude and economic x restore the MAF... If ? just gone you have to replace it and that's it.
Just be wait until the piercing.. don't you have to get the tip to touch the plates, and where ? attached the sensor worth the final break.
faberecu
29-09-2013, 22:00
the Pierburg they are really beautiful as maf with different technology I buy very good little
do not take those chinese!!!!!!!!!!!!!
I long ago I had to diy and mounted on my old car and say that was pretty good, only that I was always adjust that trimmel to have the right values until one day, I bought the system new and smontai that useless box...
cicciocar
05-10-2013, 09:01
hello, cuts the wire 3 of the mass air flow sensor and put a resistance of 3-4 ohms max and test...
I studied a p? how does the mass air flow sensor and how do the modules...are of the amplifiers of the signal detected by the debbimetro but if the same and ruined amplify something ? for example, if a wrong value...
I think the best solution is always a mass air flow sensor back up and running
hello
SandroMarciano
27-11-2013, 23:12
in general, the debimetri you starano segnondo less of the amount owed and the modules, if well calibrated, to allow you to return to the scale of the original values. ? obvious that the mass air flow sensor new ? the best solution, given that the expense is not ? indifferent I think 2 times...
I repeat, these amplifiers do not need to do it, when and gone and gone and has to be changed...
As I understood the diaphragm tanks are dirty and feels unlike the mass of air (in practice, it cools differently from how it should), the hole probably makes him feel the air mass differently, and in some cases improves things..the form set so as to have a value of output that is consistent and the car seems to go better.
In both cases, the control unit does not receive information on the mass of air that actually enters :-) right?
biondo83
28-11-2013, 12:19
The hole where it is exactly?
ecuboost
28-11-2013, 12:25
the hole: the connector above, in the narrow part in correspondence to the part where it goes in the air, I don't know how to explain it...
for? be aware that if you go one millimeter more? in the depths? you can throw everything
biondo83
28-11-2013, 13:29
Then just above the slot in the standard where it passes the intake air?
see if you can see (found on the web)
6238
SandroMarciano
30-11-2013, 16:31
I repeat, these amplifiers do not need to do it, when and gone and gone and has to be changed...
Must necessarily be changed when it is faulty, not when you stara, in that case ? can retrieve it using a form
As I understood the diaphragm tanks are dirty and feels unlike the mass of air (in practice, it cools differently from how it should), the hole probably makes him feel the air mass differently, and in some cases improves things..the form set so as to have a value of output that is consistent and the car seems to go better.
In both cases, the control unit does not receive information on the mass of air that actually enters :-) right?
the module must be adjusted so that the signal d? with the engine off, the mass air flow sensor is equivalent to a new one, for example, on the 1.9 jtd 1V, in this way, the scale is not at all altered, then of course, instead of mounting a module you can? to calibrate from the control unit acting via the linearization.
exactly acting as a controller for linearization what do you mean?
SandroMarciano
01-12-2013, 10:37
exactly acting as a controller for linearization what do you mean?
change the values of the equivalence flow of air every hour / Volt.
Could you kindly deepen the answer, I'm very interested in the topic
ducati83
06-02-2014, 14:32
interesting....but before I go to edit the map, you must first calculate the difference that we need to add in the map, or am I wrong?
alfonsoh
22-05-2014, 00:15
I usually gauges I clean with thinner, tip 3 3.5 hole centered in the middle and solve the problems on the gauges bosh.
biondo83
22-05-2014, 12:23
I usually gauges I clean with thinner, tip 3 3.5 hole centered in the middle and solve the problems on the gauges bosh.
You have a picture or something of where to make the hole? In practice you do on the side more? the tight, in the sense of transition in the air? Thanks.
alfonsoh
22-05-2014, 14:18
you ecco7936
alfonsoh
22-05-2014, 14:19
and this is for the construction of a module salvadebimetro always bosh7937
alfonsoh
22-05-2014, 14:27
the hole is in the centre, in the lower part where there is a basin that holds the stream and the deviate, it is, of course, in the back why? if you do it before you damage the hot wire, you have to be careful to enter a maximum of a few mm, otherwise we go in the thread and breaks it, then it throws of the whole.
serves to divert a portion of the pressure at the rear of the wire. if the sensor "feels a little" with this trick should feel more in the flow, if the sensor does not feel the pressure ? needless to make the hole, however, even if the sensor ? good at least that the break coming in with the tip, not ruin anything.
giuseppeturbo
24-05-2014, 20:28
I have tried to clean it with the trealina or with the spray can, spray to clean the brakes ,and many times it worked and a small gesture that costs little
francescosparco
22-09-2014, 17:51
hello guys I found the solution .. which is fine xo only on edc15 with malfunction indicator light red. I have disconnected the wire n.4, and no.5 from the spinet, and I have joined together with no put them back in the plug... then so I hung up the plug in the mass air flow sensor. now the drive reads perfectly 1200. before the max was 200. the only thing that diagnosis marks the signal mass air flow sensor high, but in the framework and all ok. on edc15 with failure in the framework of the yellow, and in the edc16etc you can do the same. the only thing that remains the malfunction indicator light turned on, and then you have to locate the fault code and delete the dtc
Powered by vBulletin® Version 4.2.2 Copyright © 2025 vBulletin Solutions, Inc. All rights reserved.