Question about 1988 Daihatsu Charade

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Map /Maf sensor difference

I am looking at installing an HHO system into my 1996 Daihatsu PYZAR/Gran move (Model G303G-GMNE, Engine HE-EG) but can't figure out whether it has a MAP sensor or a MAF sensor. How do you tell the difference? From looking under the hood it has a pressure sensor fitted to the firewall with a hose leading to the air intake?

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  • ericcampfens Feb 19, 2009

    Clarification answer:
    From what has been said it would appear that i have a MAP sensor fitted. The details on the sensor are" Daihatsu sensor pressure, 89421-87708, 6247. It has three wires coming out as well as a vacuum line and is about half the size of a box of matches.

  • yadayada
    yadayada May 11, 2010

    a MAF goes in the air intake hose it has an electrical connector on top or side, a MAP has a vacuum line as well as a electrical connetor. going to it and is about the size of a bar of soap

×

5 Suggested Answers

SOURCE: 2002 ford mustang gt map sensor enhancer connection? (for HHO)

MAP enhancers usually wont do the trick for long - the computer will learn the adjustment to the MAF and overide within a day or so usually less than a few minutes.

The computer is best altered using an EFIE to adjust the O2 sensor(s), usually adding between .2 and .3 volts to the O2 sensor signals does the trick - each combo of the HHO and car is slightly different - you have to play with it to find your best setting. You only need to alter the signal on the O2 sensors ahead of the cats as they are the ones the computer uses to adjust the fuel.

Posted on Sep 09, 2008

  • 1 Answer

SOURCE: i need Daihatsu Pyzar workshop manual

Is it a 1.5 or 1.6 ?

In any case all daihatsu 4 cylinder engines of 1.3, 1.5 or 1.6 are near identical bar the small differences in stroke / bore and combustion volumes.

So a manual for an Applause or charade or even a Rocky will cover all you need to know, here is a link to a F300 rocky / feroza manual.

http://rapidshare.com/files/61184330/Daihatsu-Feroza-HD-E-Engine-Manual.zip

Posted on Apr 28, 2009

  • 23 Answers

SOURCE: vacuum hoses to fuel system not correctly fitted

There should be an emission label under the hood with hose locations and component connections.

Posted on Aug 20, 2009

co7196
  • 3433 Answers

SOURCE: I have a Diahatsu, 1992 and it needs a MAP sensor,

Maf - map( manifold absolute pressure sensor or MAF (Mas Air flow sensor?

Turbocharger looks like a snail
A supercharger llooks like a big tube with ribs that has been flattened a little,
As far as Bars, The specs are usually on the part you will be removing.

Posted on Nov 09, 2009

Testimonial: "Thanks for the info. "

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2004 Sebring with 2.7 engine. MAF needs cleaned and hpoefully not replaced. Need help locating and the procedure for removing, cleaning, and replacing. Thanks, Keith


I wouldn't remove the sensor. Get yourself a can of electrical parts cleaner. They have it at most car parts chains. Then, just take off the air filter and look inside the inlet. The sensor should be right there. Don't touch it. Just give it a couple of good sprays. More if it looks dirty. I have pasted info below on you system that I copied from autozone.com. Let us know if you have more questions, and thanks for using FixYa!


Operation The Mass Air Flow (MAF) sensor is an air flow meter that measures the amount of air entering the engine. The Electronic Control Module (ECM) uses the MAF sensor signal to provide the correct fuel delivery for all engine speeds and loads. A small quantity of air entering the engine indicates a deceleration or idle condition. A large quantity of air entering the engine indicates an acceleration or high load condition. The MAF sensor has the following circuits:



An ignition 1 voltage circuit A ground circuit A MAF sensor signal circuit An IAT sensor signal circuit A low reference circuit

The ECM applies 5 volts to the MAF sensor on the MAF sensor signal circuit. The sensor uses the voltage to produce a frequency based on the inlet air flow through the sensor bore. The frequency varies in a range of near 1,700 Hertz at idle to near 9,500 Hertz at maximum engine load.


Removal & Installation


  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Disconnect the negative battery cable.
  3. Remove the air pump assembly.
  4. Remove the 2 bracket mounting bolts.
  5. Remove the bracket assembly.
  6. Disconnect the electrical connector to the Mass Air Flow (MAF) sensor.
  7. Twist the MAF sensor sideways and remove it from the bracket.
  8. Remove the rubber mounting.

    0996b43f8020291d.jpg enlarge_icon.gifenlarge_tooltip.gif

    Fig. Remove the 2 bracket mounting bolts


To install:
  1. Install the rubber mounting to the MAF sensor.
  2. Twist the MAF sensor sideways and install it into the bracket.
  3. Connect the electrical connector to MAF sensor.
  4. Install the bracket assembly.
  5. Install the 2 bracket mounting bolts.
  6. Install the air pump assembly.
  7. Connect the negative battery cable.


Testing


  1. Verify the integrity of the air induction system by inspecting for the following conditions:

    Damaged components Loose or improper installation An air flow restriction Any vacuum leak Water intrusion
  2. With the engine running, observe the scan tool Mass Air Flow (MAF) sensor parameter. The reading should be between 1,700-3,200 Hz depending on the Engine Coolant Temperature (ECT).
  3. Verify that any electrical aftermarket devices are properly connected and grounded.
  4. Inspect the harness of the MAF sensor to verify that it is not routed too close to the following components:

    Any aftermarket accessories The secondary ignition wires or coils Any solenoids Any relays Any motors
  5. A low minimum air rate through the sensor bore at idle or during deceleration may cause a DTC to set. Inspect for the following conditions:

    Any deposits on the throttle plate or in the throttle bore Any vacuum leak downstream of the MAF sensor
  6. Inspect for any contamination or debris on the sensing elements of the MAF sensor.
  7. Inspect the air induction system for any water intrusion. Any water that reaches the MAF sensor will skew the sensor and may cause a DTC to set.
  8. A Wide Open Throttle (WOT) acceleration from a stop should cause the MAF sensor parameter on the scan tool to increase rapidly. This increase should be from 3-10 g/s at idle to 150 g/s or more at the time of the 1 to 2 shift of the transmission. If the increase is not observed, inspect for a restriction in the induction system or the exhaust system.
  9. Inspect for a skewed or stuck Engine Coolant Temperature (ECT) sensor.
  10. Test for a high resistance of 15 ohms or more on the ignition 1 voltage circuit. This may cause a DTC to set. A high resistance may also cause a drivability concern before a DTC sets.

The Barometric Pressure (BARO) sensor that is used in order to calculate the predicted mass air flow value is initially based on the Manifold Absolute Pressure (MAP) sensor at key ON. When the engine is running, the BARO value is continually updated near WOT. A skewed MAP sensor will cause the calculated mass air flow value to be inaccurate and may result in a no start condition. The value shown for the MAP sensor parameter varies with the altitude. With the ignition ON and the engine OFF, 101 kPa is the approximate value near sea level. This value will decrease by approximately 3 kPa for every 1,000 feet (305 meters) of altitude.

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1 Answer

I have a Diahatsu, 1992 and it needs a MAP sensor, how do I find out how many bars the MAP sensor should be and how do I know if it is a turbo or super charged engine? It is an EFI, 3 cylinder.


Maf - map( manifold absolute pressure sensor or MAF (Mas Air flow sensor?

Turbocharger looks like a snail
A supercharger llooks like a big tube with ribs that has been flattened a little,
As far as Bars, The specs are usually on the part you will be removing.

Nov 09, 2009 | 1988 Daihatsu Charade

1 Answer

I need Daihatsu Pyzar workshop manual


Is it a 1.5 or 1.6 ?

In any case all daihatsu 4 cylinder engines of 1.3, 1.5 or 1.6 are near identical bar the small differences in stroke / bore and combustion volumes.

So a manual for an Applause or charade or even a Rocky will cover all you need to know, here is a link to a F300 rocky / feroza manual.

http://rapidshare.com/files/61184330/Daihatsu-Feroza-HD-E-Engine-Manual.zip

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2 Answers

2002 ford mustang gt map sensor enhancer connection? (for HHO)


MAP enhancers usually wont do the trick for long - the computer will learn the adjustment to the MAF and overide within a day or so usually less than a few minutes.

The computer is best altered using an EFIE to adjust the O2 sensor(s), usually adding between .2 and .3 volts to the O2 sensor signals does the trick - each combo of the HHO and car is slightly different - you have to play with it to find your best setting. You only need to alter the signal on the O2 sensors ahead of the cats as they are the ones the computer uses to adjust the fuel.

Aug 12, 2008 | 2002 Ford Mustang

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