Question about 2001 Chrysler PT Cruiser

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Wher is MAP sensor

I think it is on pasenger side on top of the air flow systemand close to fire wall with 3 wires going to it. please explain if i'm wrong

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That is it.

Posted on Jul 21, 2008


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Where is map sensors location on Toyota Prado 2005

Damien wrote: I dont think that the 120 V6 uses as an Airflow sensor as such. They are located before the throttle body on the inlet path after the filter to prevent dirt from fouling. I have not seen this on my V6. If its there it must be under the inlet plenum.
I would say they use MAP sensor instead to control the mixture in conjunction with the EGO in the exhaust.
Ensure that your air filter is clean and your tyre pressures are good. Run some injector clean through at your next fuel stop as well. Replaced the fuel filter, checked the air filter and ran a load of injector clean, all with no improvement.

Today i dropped into Toyota Toowoomba and one of the mechanics came out, showed me the position of the air flow sensor; its a little probe that screws into the top of the air box, just after the air filter. The probe electronically measures the flow rate of air passing it and adjusts the mixture. Mechanic explained that they tend to get dirty and then the motor runs rich and fuel consumption increases - reckons its fairly common. He suggested i unscrew and give it a dose of contact cleaner.

So yes, our v6s do have an air flow sensor ... took a while to find it. Its now been cleaned. I'll provide an update on fuel consumption in a few weeks.

On the side, i was pleasantly surprised at how ready the Toyota guys were to offer help. Especially as i was up front with them that i had not had the vehicle serviced with them

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Where is the map sensor located and how do I install it in a 1992

  1. Disconnect the negative battery cable.
  2. Remove the air cleaner outlet tube by loosening the retaining clamps, then tag and disconnect any hoses or tubes.
  3. Disengage the engine control sensor wiring connector from the mass air flow sensor.
  4. Remove the four retaining bolts, then carefully remove the sensor from the vehicle.
  5. Discard the mass air flow gasket.
To install:
  1. Position the mass air flow sensor with a new gasket onto the air cleaner cover.
  2. Install the four retaining bolts, then tighten them to 25 inch lbs. (3 Nm).
  3. Install the air cleaner outlet tube by aligning the white identification mark on the tube with the tube stop on the throttle body, then tighten the retaining clamps to 24-48 inch lbs. (2.7-5.4 Nm).
  4. Engage the engine control sensor wiring connector to the mass air flow sensor.
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Well there are several things that could cause this problem...

1. one of the coils may not be firing.
2. the ignition module could be bad.
3. the mass air flow sensor could be tellign the car to run rich (too much gas)
4. if the car is equiped with a map sensor it could do the same as a mass air flow sensor.
5. fuel pressure regulator could be leaking at vacuum port drawing in more fuel than needed.
6. the computer itself could be bad as well.

The car either has a map sensor or mass air flow not both. The mass air flow would be right after the air cleaner housing usually a 4 wire connector. map sensor is normally located on the rear of the upper intake manifold with 1 vacuum line going to it with 3 wire connector. Hope this helps.

Sep 11, 2008 | 1991 Pontiac Grand Prix

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MAP sensor

If you look at the sensor it will have a vacuum hose to it and yes 3 wires, they are reference, ground and signal output Do not replace the sensor just because there is a code, that code means a problem with the system itself, it can be the sensor, the wiring the PCM, test first, replace parts only then, MAP sensors are expensive and it may no cure the problem.

Jul 21, 2008 | 2001 Chrysler PT Cruiser

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