pressure sensor bosch

[macinische90]

hi guys does anyone remember how it is measured and that value should you give them? thanks dell for help

[cinqueturbo]

With The Diagnosis?
simple..

[macinische90]

what should I watch for ?

[cinqueturbo]

what should I watch for ?

Pressure Turbocharger..
or Absolute Pressure
or Suction Pressure
depends on diagnosis diagnosis..

[macinische90]

pressure turbocharger there, and c, and pressure goal measured, but I don't know the values that I should give

[cinqueturbo]

what should I watch for ?

I forgot..
with the engine off 990-1024 mb
with the engine idling +- the same
under fire depends on the loaded map usually ori the 150hp is 2200-2400 mb less than 1024 atmospheric 1,2-1,4Bar
always s? remember...

[macinische90]

then it is processed together with the mass air flow sensor and used for the stoichiometric ratio,thanks now I know where to look

[xathanatosx]

sorry but how do you, instead, to see if ? perfectly calibrated? I don't think that this sensor is the lord, or am I wrong?!?!?!?!?

[redfifty]

sorry but how do you, instead, to see if ? perfectly calibrated? I don't think that this sensor is the lord, or am I wrong?!?!?!?!?

A first test can? be to remove the sensor from the air intake and leave it in the air, in diagnosis to compare the parameters turbo pressure measured with atmospheric pressure, must be nearly identical.
Otherwise with a pressure pump with a pressure gauge connected to the sensor you can put a 2 bar pressure read on the pressure gauge and diagnosis in turbo pressure measured you have to have the 2 bar

[xathanatosx]

this I never would have thought of that ... thank you
I thought that was to do a procedure type to check for proper operation of the mass air flow sensor with a tester on the ground, and the output 1V....
Anyway, tomorrow testero.

[munro]

this I never would have thought of that ... thank you
I thought that was to do a procedure type to check for proper operation of the mass air flow sensor with a tester on the ground, and the output 1V....
Anyway, tomorrow testero.
the you can? test also so....
to vary the pressure varies the voltage...
searched the web for the datasheets and see how much pressure, how much output voltage from the map corresponds..
or if you have ******** the sw tells you all the procedures for diagnosis...

[xathanatosx]

no nothing ********use multiecuscan but according to me, distort seen that if the sti sensors bust the ecu no errors. at least I think....am I wrong?

[macinische90]

this I never would have thought of that ... thank you
I thought that was to do a procedure type to check for proper operation of the mass air flow sensor with a tester on the ground, and the output 1V....
Anyway, tomorrow testero.
hello.. how do you test the mass air flow sensor if it works??

[munro]

you look at the values of the voltage on the maf....the minimum should be about 1.5 volts....with the machine all accelerated should give around you have 4.5 volts...

[xathanatosx]

Now if this is a one-to-analog (5contatti), if I remember correctly, you need to test the cable that carries the 5V, then the tester on the cable ground and the other on the 5V, and verify that it has not too many oscillations (+0.1 V if I'm not mistaken).
The second point to be checked the cable that leads 1V (egnale air mass), and even here it must be checked if the voltage does not deviate too much from the nominal voltage (+-0,1).
If the values are too low mean that ? busted. I'm at the point to be changed.
If it is a digital speech change (4 contacts) , you normally do not ever breaks, but you can get dirty and should be cleaned up.
I hope I remembered everything and she said crap.

[macinische90]

Now if this is a one-to-analog (5contatti), if I remember correctly, you need to test the cable that carries the 5V, then the tester on the cable ground and the other on the 5V, and verify that it has not too many oscillations (+0.1 V if I'm not mistaken).
The second point to be checked the cable that leads 1V (egnale air mass), and even here it must be checked if the voltage does not deviate too much from the nominal voltage (+-0,1).
If the values are too low mean that ? busted. I'm at the point to be changed.
If it is a digital speech change (4 contacts) , you normally do not ever breaks, but you can get dirty and should be cleaned up.
I hope I remembered everything and she said crap.
8184
this is my... this is digital,in order to control it?

[macinische90]

no nothing ********use multiecuscan but according to me, distort seen that if the sti sensors bust the ecu no errors. at least I think....am I wrong?

xathanatosx where to watch cn multiecuscan??

[xathanatosx]

well ? more complicated, on this is missing the contact of 5V, but remains that of the air temperature, the 12V, the mass, unchanged from the analog, and c'? the signal mass air intake.
But to be able to measure this, if I remember correctly, it takes an oscilloscope (I informed a short time ago)
Anyway ec difference between bosh and pierburg have frequency differences of the work,the mass air flow sensor bosch generates a signal with a frequency that increases with the increase of the
air mass, while the deb. pierburg drops with Frequency.
Ps. I can't see the images

[macinische90]

well ? more complicated, on this is missing the contact of 5V, but remains that of the air temperature, the 12V, the mass, unchanged from the analog, and c'? the signal mass air intake.
But to be able to measure this, if I remember correctly, it takes an oscilloscope (I informed a short time ago)
Anyway ec difference between bosh and pierburg have frequency differences of the work,the mass air flow sensor bosch generates a signal with a frequency that increases with the increase of the
air mass, while the deb. pierburg drops with Frequency.
Ps. I can't see the images
with multiecuscan no one can see anything? I l oscilloscope ec l I...

[xathanatosx]

Click on parameters and scroll down to search for the items air Mass measured Mass air objective (and temp air).
You have done this you make a turn by activating the chart. If you do not make monsters values should be as similar as possible. well, in my opinion, check the voltages.

[xathanatosx]

I'll tell you the truth, never had the oscilloscope and never tried it, I only know how to do it, theory but nothing practical on digital.
Anyway, I know that when I clean properly, the car flies.
I first inserted in the gas, I dried off with a light puff of compressed air, very lightweight, made to drain and then down spray for DRY contacts.
This ? important.....must be dry and not olioso or otherwise, instead of improving, you can only get worse. At that point you remodeling clean it up.

[macinische90]

Click on parameters and scroll down to search for the items air Mass measured Mass air objective (and temp air).
You have done this you make a turn by activating the chart. If you do not make monsters values should be as similar as possible. well, in my opinion, check the voltages.
then:
Air mass measured: 0.0 mg/i
Mass air objective: 279,5 mg/i




Air mass measured: 0.0 mg/i
Mass air objective: 279,5 mg/i
Measured position turbo: 10,77 mm
Position objective turbo: 1.25 mm
Opening the EGR valve: 128 %
Measured position EGR: 0,00 mm
Position objective EGR: -0,40 mm
Control EGR: Off



READ PARAMETERS:
Fix the fuel cylinder 1: 0,00 mm?/the
Correction fuel cylinder 2: 0,00 mm?/the
Correction fuel cylinder 3: 0,00 mm?/the
Correction fuel cylinder 4: 0,00 mm?/the
Air mass measured: 425,0 mg/i
Mass air objective: 285,5 mg/i
Measured position turbo: 1,07 mm
Position objective turbo: 0.38 mm
Opening the EGR valve: 128 %
Measured position EGR: 0,00 mm
Position objective EGR: -0,40 mm
Control EGR: Off
Valve exclusion exchanger EGR: Off







UPLOAD PARAMETERS:
Fix the fuel cylinder 1: 0,00 mm?/the
Correction fuel cylinder 2: -0,14 mm?/the
Correction fuel cylinder 3: down 0.22 mm?/the
Correction fuel 4 cylinder: 0.42 mm?/the
Air mass measured: 334,0 mg/i
Mass air objective: 279,5 mg/i
Measured position turbo: 0.60 mm
Position objective turbo: 0,62 mm
Opening the EGR valve: 128 %
Measured position EGR: 0.06 mm
Position objective EGR: -0,40 mm
Control EGR: Off







READ PARAMETERS:
Fix the fuel cylinder 1: 0,00 mm?/the
Correction fuel cylinder 2: down 0.32 mm?/the
Correction fuel cylinder 3: 0.82 the mm?/the
Correction fuel cylinder 4: 1,01 mm?/the
Air mass measured: 343,0 mg/i
Mass air objective: 279,5 mg/i
Measured position turbo: 0.58 mm
Position objective turbo: 0,62 mm
Opening the EGR valve: 128 %
Measured position EGR: -0,03 mm
Position objective EGR: -0,40 mm
Control EGR: Off





READ PARAMETERS:
Fix the fuel cylinder 1: 0,07 mm?/the
Correction fuel cylinder 2: -0,58 mm?/the
Correction fuel cylinder 3: -0,86 mm?/the
Correction fuel cylinder 4: 1,36 mm?/the
Air mass measured: 409,0 mg/i
Mass air objective: 279,5 mg/i
Measured position turbo: 0.58 mm
Position objective turbo: 0,62 mm
Opening the EGR valve: 128 %
Measured position EGR: - 0.02 mm
Position objective EGR: -0,40 mm
Control EGR: Off
Valve exclusion exchanger EGR: Off
Opening the solenoid valve, butterfly: 81,95 %
Opening butterfly valve flow: 54,76 %






Air mass measured: 585,0 mg/i
Mass air objective: 319,5 mg/i
Measured position turbo: 0,91 mm
Position objective turbo: 0.94 mm
Opening the EGR valve: 128 %
Measured position EGR: - 0.01 mm
Position objective EGR: -0,40 mm
Control EGR: Off

[macinische90]

READ PARAMETERS:
Fix the fuel cylinder 1: 0,25 mm?/the
Correction fuel cylinder 2: -0,16 mm?/the
Correction fuel cylinder 3: - 0.01 mm?/the
Correction fuel 4 cylinder: 0.45 mm?/the
Air mass measured: 640,5 mg/i
Mass air objective: 1499,5 mg/i
Measured position turbo: 2,83 mm
Position objective turbo: 2.90 mm
Opening the EGR valve: 128 %
Measured position EGR: - 0.01 mm
Position objective EGR: -0,40 mm
Control EGR: Off
Valve exclusion exchanger EGR: Off
Opening the solenoid valve, butterfly: 5,00 %
Opening butterfly valve flow: 28,11

[xathanatosx]

apart from that we are OT here anyway, I see that in the post before you air mass measured greater than that of the objective, and here in the last decidedly lower, strange....I must be equal and not be too differ greatly.
Did you ever clean? The air filter?

[macinische90]

apart from that we are OT here anyway, I see that in the post before you air mass measured greater than that of the objective, and here in the last decidedly lower, strange....I must be equal and not be too differ greatly.
Did you ever clean? The air filter?
the mass air flow sensor is also too clean and the back again, and the air filter is one of the sport bmc brand new... I'll tell you that the values are always the same and this is the period that will be something happened..

[macinische90]

Air mass measured: 483,5 mg/i
Mass air objective: 804,5 mg/i
xant, tell me, what is the air measured and the air objective.

[xathanatosx]

now with the heat, as we know, drive it hard and have less performance. Hot air and less oxygen, fresh air more boost of oxygen. you said that they are very differ greatly.
What car do you have?
If you have a mjet, you can unplug the mass air flow sensor and make a turn, if you notice that the car is better then c'? some problem with the deb otherwise ' all ok.....even if I don't return the measurements

[xathanatosx]

well the goal ? what the ecu expects to measure in that moment, with that temperature and engine rpm.....that measured ? that actually read from the ecu.
This? she expects 100 but really? receive 50.

[macinische90]

I have already? did the test with the connector unplugged the mass air flow sensor and the car flies... With the mass air flow sensor attached to me starts to push from 2700 rpm.. I have a multijet 165cv

[macinische90]

Ahhhhh I forgot to tell you that I cleaned with the olioso....

[astriunfao]

Hi. Check mass air flow sensor and egr phisical and clean as possible position not real. And check ic pipes catalyst or dpf. Br

[macinische90]

The Egr is off..

[xathanatosx]

Ahhhhh I forgot to tell you that I cleaned with the olioso....

then! thanks that should not be, ? smeared in oil! you have used a stimulating electric.
You have to use a dry one.
Smontalo, hold for a few seconds in the gasoline CLEAN, without residue, to some, the pull out, the deficit and the puffs with air, but very slowly, it must be very light. Then take the spray DRY and fill in.
You will notice that it has 2 openings, one on the side, type plate, and the other at the bottom of the front where it comes from the air. from there it enters the air that is measured, and come out from under. Also spray them several times, the spray dry reminding you of dripping then otherwise you have left something inside. After this light, blowing reassembly and test it on the road.
I would highly recommend, a few seconds in the gas, is used to degrease it. The dunk as if it were a biscuit, and by doing so get well in the hole below.

[astriunfao]

Off in the ecu and close mechanical.?

[xathanatosx]

on mjet it's it must be off in the ecu and closed. otherwise you'll see mechanical failure on the dashboard. mjet are euro 4

[macinische90]

on mjet it's it must be off in the ecu and closed. otherwise you'll see mechanical failure on the dashboard. mjet are euro 4
It's close in the ECU... No error.. Perfect

[macinische90]

Then the mass air flow sensor I measured with the oscilloscope... in the Meantime, the volt I have to say if ? peak to peak or continuous,the frequency ? of 1.86 kHz and above all I get is a square wave but a perfectly triangular right angle as if it was cut....

[xathanatosx]

Eh remember it to memory...but before you can do is what you clean properly the mass air flow sensor? Not ? the face all that well though ? all the grease.

[xathanatosx]

Cmq l the right frequency ? 1.8 kHz if it is Bosch. To see if it works, take the compressor and carefully blows without overdoing it on the mass air flow sensor. If it reaches 12/13khz you are OK.

[Matty23p]

[macinische90]

Cmq l the right frequency ? 1.8 kHz if it is Bosch. To see if it works, take the compressor and carefully blows without overdoing it on the mass air flow sensor. If it reaches 12/13khz you are OK.
Clean all with products to dry... also Measured with a tester and I 0.50 v... it will be a coincidence ? all halved... let Me explain ,instead of the square wave, I get a wave cut in a half,instead of a half a volt volt... you Believe you don't have anything wrong then ? to gone...

[gionag]

I think that here you are talking about the MAF... you have to replace a MAP ;)
Your ? a pressure sensor, a mass flow sensor...

[macinische90]

Fitted a new mass air flow sensor taken on the web, the measured in and out is a square wave perfect.. The other one was gone.. :)