Question about 2000 Chevrolet Prizm

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2000 Prizm i purchased a Mass Air flow sensor. after my mechanic said that is the reason my check engine is on. can you assist me with installing it? i see you have a picture the the engine configuration but its to small for me to read it. does it make sense that running the a/c causes it to go on? because it has gone off a few times then when turning on the a/c and driving for a wile the check engine light turns back on (it might just be a coincidence dont know) any why i hope you can help me out, thank you

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  • Ezzy1984 Oct 30, 2008

    Thank you very much!



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Is that the same for a 1999 Prism?

Posted on Oct 30, 2008

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Yes I can help you.
The Mass Air Flow sensor. Is located on left side of the Engine compartment.
If you follow the Big Hose comoing from the Throttle Body to the Air filter Housing.
Check the Hose for any Break down. or loose Clams, or any damage on the hose repair as need
On the BLACK BOX of the Air filter. is the Mass Air flow sensor.
Normally mounted with 2 small screw. Just Remove the Screw them remove the sensor.
If the Air filter need change due.
Remove the Negative Battery terminal to Clear the LIght.
If the Light come back. Give me the Code number and I will help you.

OK.. The coment about when you turn on the a/c. it make sense.
Because when you turn the a/c on, the computer command more or less Idle. Based on RPM. TPS. ECT. And AIR FLOW.

OK.. I hope this help on your problem.
Thank you for use fixya...

Posted on Oct 05, 2008

  • Juan Guillen Oct 30, 2008

    Guest. Yes is the Same for the 1999.



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SOURCE: 2000 Prizm

If you go to Auto Zone or Advance Auto they can point it out.
If you saw a picture then that is small, you can copy and paste it on your computer and enlarge it and brighten it to see it clearly.

Posted on Mar 16, 2009

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Locating MAF on 2001 alreo

Honda's do not use a mass air flow (MAF) sensor. They use a manifold air pressure (MAP) sensor. The MAP sensor measures vacuum vs the MAF sensor measuring air flow/temperature. No real reason to clean a Honda MAP sensor. Are you having engine performance/idle problems? --------------------------------------------------------------------------------
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2000 nissan sentra 2.0 error codes p0101& p0102

P0102 - Mass Air Flow Sensor Circuit Malfunction

The mass air flownissan-maxima-maf-sensor.jpg or MAF sensor is placed in the intake air duct between the air filter and the engine intake manifold. The MAF sensor measures the amount of intake air flow. The MAF sensor converts the air flow measurement into a voltage or frequency signal, with the voltage or frequency changing proportionally to the amount of air flow. The air flow sensor signal is monitored by the engine computer (ECM). The engine computer (ECM) uses the mass air flow signal to know the engine load and to calculate the proper amount of fuel injected. If the signal from the mass air flow sensor is out of expected range, the ECM detects a fault and sets the code P0100. For example, the mass air flow sensor signal could be higher than expected when the engine is not running or lower than expected with the engine running. A car with the code P0100 may have some driveability issues, such as stalling, lack of power, surging, hesitation, etc. In some cars, the code P0100 can cause the fail-safe mode where the engine speed would be limited to 2,500 - 3,000 rpm.
If there are other trouble codes present, they might need to be looked at first. Checking the freeze frame may help, as it may contain some important information. The freeze frame is a snapshot of the engine parameters at the moment when the fault was detected. The freeze-frame may show whether the vehicle was running or stopped, whether the air-fuel ratio was lean or rich, was the engine was cold or warmed up at the time of the malfunction. Read more about the freeze frame.

Read more about mass air flow sensor.

What could cause the code P0100:
- faulty or contaminated mass air flow sensor
- open or short in the mass air flow sensor electrical circuit
- open or short in the sensor power or ground circuit

- other electrical problem with the MAF sensor wiring, (corroded wires, bent terminals, bad ground connection, burned fuse, etc.
- vacuum leaks
- restricted air flow at or before the air filter
- wrong air flow sensor installed
- problem with ECM

P0102 - Mass Air Flow Sensor Circuit Low

The mass air flow or MAF sensor measures the amount of air entering the engine. The engine computer (ECM) uses the mass air flow signal to calculate the amount of fuel injected (read more how the MAF sensor works below). The code P0102 is set when the signal from the mass air flow sensor is lower than expected. Often a car may exhibit some driveability symptoms, such as lack of power, surging, hesitation on acceleration, hard starting, pinging (detonation), or rough idle when started cold. Often the codes P0171 or P0174 could also be stored along with the code P0102, as the incorrect air flow signal can cause the engine to run lean. The codes P0171 and P0174 indicate a lean condition. Checking the freeze frame might help in the diagnostic process. The freeze frame is stored in the ECM along with the trouble code. The freeze frame contains some recorded parameters (e.g. vehicle speed, engine temperature, fuel trim) at the moment when the fault was detected. The freeze frame can also be accessed with a scan tool.

What could cause the code P0102
- faulty or contaminated mass airflow sensor
- debris blocking the air flow at the mass air flow sensor
- unmetered air leaking past the MAF sensor (vacuum leaks)
- PCV system vacuum leaks
- restricted or collapsed intake air duct
- dirty or restricted air filter
- restricted air screen before the air filter
- improper application of aftermarket components (e.g. cold intake, modified air filter, etc.)
- wrong air flow sensor installed
- electrical problem with the MAF sensor wiring, connector, power supply or ground.
- problem with ECM
- in some cases other issues with the fuel injection system like a clogged catalytic converter or a faulty manifold absolute pressure sensor (MAP) can also cause the code P0102.

Solution for MAF repair

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2001 Geo Prizm has hesitations and shows check engine light on. Two different mechanics cleaned the oxygen sensor, light disappeared for a couple of weeks, but came back on. The hesitation on...

If your oxygen sensor is being fouled its most likely being fouled by unburned oil residue. If your car releases a puff of blue smoke only when you start it, then it's probably your valve guide seals. If you can see a steady blue haze in the exhaust then your burning oil in the combustion process, probably worn piston rings and or cylinder walls. If your oil is getting into places you don't want it to, try a heavier grade of oil. Only adjust your grade of oil one grade thicker at a time. If your engine is getting up in miles there's not much that can be done. Change your spark plugs often and monitor what you find. If the motor is burning oil it is probably fouling the spark plugs too. If you aren't getting satisfaction from your mechanic take matters into your own hands. After all, some mechanics are in it for the repeat business.

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Location of mass air flow sensor, 2000 Grand Prix GTP

The mass air flow sensor is a round sensor that is mounted in the air intake, between the air cleaner box and the engine throttle body.

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Where is mass air flow senser on a 1989 buick regal


Thanks for using FixYa. The BUICK Regal Mass Air Flow sensor is usually installed in the intake air duct between the air filter and the throttle body mounted on the intake manifold. Also check the throttle body for mass air flow sensors location.
On mass air flow sensors with a sense wire, this wire can become contaminated with dust particles. These particles can be removed with automotive solvents that are safe for the use on mass air flow sensors. Before replacing the mass air flow sensor check for air leaks in the connecting air ducts and intake manifold. These leaks can cause similar symptoms as a malfunctioning mass air flow sensor.

Bad or contaminated BUICK Regal Mass Air Flow sensor can possibly cause a wide range of various vehicle drivability problems such as stalling, especially when the engine is cold, misfiring, poor acceleration, etc. In addition, a problem with the Mass Air Flow sensor often causes the "check engine" or "service engine soon" light in the vehicle instrument panel to illuminate.

Please do accept the solution if the issue is resolved or else revert for further assistance.


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1 Answer

I have a 2001 toyota corolla and I am wondering if theres any other make of toyta vechile that would match mass air flow sensors with a corolla. If so will they work the same? Please help

A Chevrolet Prizm is the same Toyota Corolla car. Scion is Toyota also. All the mass air flow sensor of the same year and same engine size should be the same.

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Car(when cold)has to be iddled or it wil

Difficult to say,so many things effect the idle.Throttle position sensor,also the egr position sensor,and the mass air flow sensor for just some of the reasons.Check the air filter for blockage first off.Remove the mass air flow and inspect it for forgien matterial that might caught in the sensor.Any check engine lights on?If so,a code reader might give you an idea where to look for the problem.Some parts stores will offer to do this at no cost.But check with a mechanic before you purchase a part from them,to see what you choices are.The coolant sensor would be my first guess,sense the idle does fine after warm up.This tells me the sensor may be out of range,not sensing cold coolant.Let me know how you come out,Let me know if this helps you at all.

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It should be in the airbox region so I would say quite easy.

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2000 Prizm

If you go to Auto Zone or Advance Auto they can point it out.
If you saw a picture then that is small, you can copy and paste it on your computer and enlarge it and brighten it to see it clearly.

Mar 16, 2009 | 1999 Chevrolet Blazer

2 Answers

Sluggish when taking off

I had a very similar problem with my prizm, and it was mass air flow sensor. They cleaned it out, and now shes back to running good! It could also be an O2 sensor, or a regulator.

Good luck!

Aug 18, 2008 | 2000 Chevrolet Prizm

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