Question about 2005 Scion tC

1 Answer

Help me i think my mass airflow sensor is messed up, but also all my warning lights are on and my speedometer dosent work.....? what could it be. when i drive my scion it drives fine as long as i dont give it to much gas at one time. if i do it bogs down bad? can anyone help me?

Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert who has answered 20 questions.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

  • Expert
  • 51 Answers

I had a honda accord that did the same thing. I replaced the distributor, engine computer, mass air flow sensor then I got to thinking about the gauges going crazy, so when I got it to crank I barely moved the key, in the position it falls to once the starter is released and it ran perfect. all it was was an ignition switch.

Posted on Jan 12, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Symptoms of faulty air flow sensor

  • How to Detect and Clean a Faulty Mass Airflow Sensor ... > Car Repair > Engine Repair 2012-02-24 · Symptoms of a Faulty Mass Air Flow Sensor ... Here are some of the most common symptoms of a faulty mass airflow sensor: ... CARSDIRECT IS AN ...
  • Mass Airflow Sensor: An Easy Fix for Big Problems from a ... news,blog,mass,airflow,sensor,an,easy,fix,for,big,problems,from,a,little,instrument. ... Mass Airflow Sensor: ... What Are the Symptoms of a Faulty Mass Air Flow Sensor?
  • Signs & Symptoms of a Faulty Mass Air Flow Sensor Signs & Symptoms of a Faulty Mass Air Flow Sensor. The Mass Air Flow Sensor is a device used on many fuel injected automobile engines to measure the density of air ...
  • See Bad Mass Airflow Sensor Symptoms on Video embedded · Mass airflow sensor problems can turn on the check engine light. They can also cause a variety of other symptoms before the ... How to clean mass air flow sensor ...
  • How to ' Tell If You Really Need a Mass Air Flow Sensor ...
    • 4 MIN
    2011-08-22 · Video embedded · ... How To Clean a Mass Air Flow Meter and Tell if you really need ... Mass Air Flow Sensor ' Auto Repair ' Wesley Harrison ... Sensor Symptoms ...

  • Videos too.,
  • Go to Bing homepage

    Jul 09, 2016 | Cars & Trucks

    1 Answer

    Will the bad mass airflow sensor make a car stall when u excelerate. ...2000 nissan maxima

    I can not say for certain on a Nissan but on American vehicles there is a separate table in the computer that the engine would run off of called the Volumetric Efficiency table that is a back up to the MAF sensor. I would think that because the computer systems are supposed to work pretty close to the same that it shouldn't do that. If the stalling started happening at the same time the check engine light came on to warn you about a bad MAF sensor then it stands to reason they could be related. Since the MAF works by measuring the resistance in a wire and if that wire gets dirty it will throw a code saying it isn't working right. The first thing I would try would be to look at the sensor where the air goes through it and see if you see a broken thin wire. If not go to the auto parts store and get a can of Mass Airflow sensor cleaner and hose it down. Unhook the battery and sensor while doing this then hook everything back up and see if the problem goes away if not the sensor is probably messed up internally.

    Mar 17, 2015 | Nissan Cars & Trucks

    1 Answer

    Bmw e46 year 2ooo i drive it down the road and it jerks every so slightly then just cuts out i dont think its power current but thought maybe fuel filter so changed that to no avail the problem still...

    I would remove the air filter and mass airflow sensor and the air tube up to the throttle and the rubber boot that attaches to the throttle body. Check the tubing for cracks that may be letting in excess air that is not being measured. It might be helpful to clean the throttle valve and the mass airflow sensor with mass airflow sensor spray.
    Other problems that can cause the symptom you describe are degradation of the crank position sensor or possibly the cam position sensor (cam position sensor error will be most noticeable at idle). If those are causing the problem, as it gets worse it will eventually set a code and light the check engine light.

    Mar 12, 2011 | BMW 318 Cars & Trucks

    1 Answer

    1997 VW 2.0 Engine Air filter / check engine light

    Sounds like it could be a mass airflow sensor failure. Take your car do your reputable mechanic and have them scan your computer to find out what the error code is, and then go from there. If it says that the mass airflow sensor is offline, I would look to make sure that the connector is properly secured on the air intake hose.

    Apr 24, 2010 | 1997 Volkswagen Jetta

    3 Answers

    '97 Nissan pickup truck mass airflow sensor malfunction?

    Always replace with a new or working used one. I have never heard of rebuilding a MAF sensor!!

    Mar 15, 2010 | 1997 Nissan Pickup

    1 Answer

    Ford fiesta 1.3 01. Engine warning light on

    It sounds like a mass airflow sensor

    Sep 08, 2009 | 2007 Ford F

    2 Answers

    Car speedo & odometer sometimes work OK, other times not at all.

    Most likely a speed sensor is going bad (most cars and truck do not use mechanical speedometer cables anymore) most sensors are located near the differential in rwd cars or near the drive shaft on the transmission. Best bet is to get a Haynes manual for your car to help locate the speed sensor. Remove it and take it to the auto parts store so you can visually compare it to the replacement. Install the new speed sensor and it should restore your speedometer and odometer.

    Aug 19, 2009 | 1996 Honda Civic

    2 Answers

    Odometer inop and speedometer erratic over 50mph

    Yes your speedometer, and odometer are controlled by your speed sensor.

    May 20, 2009 | 1993 Saturn SW1

    2 Answers


    I recently had the same code come up when my car failed to start in the mornings. It also said that the crank sensor had failed. Having changed the sensor and still not starting it went back to the garage. According to a Jag enineer the ECU will fail to register if it gets less than 12v from the battery, this will also throw up several codes for the diagostics. Solution, change the battery. Problem solved.

    Jul 22, 2008 | 2002 Jaguar X-Type

    2 Answers

    1995 honda civic dx

    Look on the wiring harness it plugs in on top of the transmission
    make sure all the wires are together. If every thing is ok with the wiring, The sensor is the only thing it could be. A gook used spedometer sensor from the junk yard will work this sensor dosent take a lot of abuse so a good used one will be cheap and work just fine. This is a job you can do your self and save a lot of money. I had the same problem with my 95 civic

    Jul 12, 2008 | 1995 Honda Civic

    Not finding what you are looking for?
    2005 Scion tC Logo

    180 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top Scion Experts


    Level 3 Expert

    79123 Answers

    Colin Stickland
    Colin Stickland

    Level 3 Expert

    22326 Answers

    Brad Brown

    Level 3 Expert

    17102 Answers

    Are you a Scion Expert? Answer questions, earn points and help others

    Answer questions

    Manuals & User Guides