Question about Chevrolet Impala

1 Answer

Battery ground i have 2003 impala 3.4 it bumps from stop to forward i replaced mass air flow sensor and it does the same thing unless i olso replaced the mass airflow connector,, the funny thing is that if i disconnect the signal wire from the mass airflow sensor the transmission works fine one more thing i had the transmission replaced from a junkyard so i dont know if its a solenoid or a ground to the transmission maybe they forgot to bolt on,,

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Chevrolet Master
  • 575 Answers

VSS vehicle speed sensor. I hope you put new fluid and filter when it was changed.

Posted on Apr 24, 2013


6 Suggested Answers

  • 2 Answers

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

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

  • 6966 Answers

SOURCE: 02 sedona hard time starting and mass airflow sensor issues


Appreciate the direct "Ask Me".

Hard starting could be caused by a number of faults such as weak battery corroded/loose battery terminals, fuel delivery issues and others which may include as you posted the MAF sensor. In my country however, most Kias have a peculiarity. They like to be well warmed up (even if it is hot here). Hard starting specially after short hops/trips is actually the ECU/ECM/Control Module or the car's computer getting mixed sensory inputs. The corrective action is to warm up the car fully before using. In some instances, it may also be required to reset the computer by removing the negative battery terminal for a few minutes. Pls bear in mind that some alarms are triggered this way and/or some car stereos would require a security code if the battery is removed.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

Posted on Sep 04, 2008

SOURCE: 1999 pontiac grand prix . will not run

If wiggling the wires cured the code, then one of the wires is broken inside the insulation. Pull on each wire one at a time. look for the colored insulation to stretch, this will be the broken wire. For the other car that wont rev up, this is a common when the catalytic concverter is plugged up. This will also cause MAF codes, and in turn, TRAC OFF light.

Posted on Oct 17, 2008

  • 2984 Answers


Very easy for the Mass Air Flow is in the duct between the throttle body and the air filter box. Just unclamp the tube and remove the old and replace with the new.


On your pack....I need the engine size.

Posted on Mar 26, 2009

  • 2 Answers


I had a similar problem that stalling when slowing down to stop and removing the foot from accelerator pedal. This had been ongoing for almost 6 months. I have taken it to the big service companies who spent hours changing lambda sensors etc....After doing a bit of investiagtion seen that other owners of same car had the throttle valve cleaned (apparently this is required every 30K). I took it to our local one man garage. He reported that he fiddled around with throttle valve using solvent cleaner and general poke around for approx 10 minutes. Since then the car has worked perfectly and has not stalled since. RECOMMEND - MUST CHECK THROTTLE VALVE CLEANED.

Posted on Nov 14, 2009

  • 1 Answer

SOURCE: '97 Nissan pickup truck mass airflow sensor malfunction?

mine did the same thing except i bought one from python and it worked fine for 3 days but the same problem came back

Posted on Jun 13, 2010

Add Your Answer

Uploading: 0%


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



Related Questions:

2 Answers

What is the fuel flow rate for a nissan altima 2001

Have to look up the specs

In general you need about 16 oz (Volume) in 15 to 20 seconds

Nov 30, 2014 | 2001 Nissan Altima

3 Answers

2003 Nissan Altima 2.5L Service Engine Soon Light is on, Auto Zone says codes are for MAF and O2 Sensors. Car hard to start after driving a while but when starts appears to run smooth. Auto Zone thi

ok lets start with the codes they say your getting. P??? which 1's and how many. there are few o2 sensors, are they next to the Exhaust next to the converter? MASS AIR FLOW -MAF use this, for now i am guessing, until i see the correct codes your are getting. this could be the 1 you may have below, please read it........
  • P0103
    Mass Air Flow Sensor Circuit High Input
  • Possible causes
  • Faulty mass air flow sensor
    - Intake air leaks
    - Dirty mass air flow sensor
    - Dirty mass air filter
    - Mass air flow sensor harness is open or shorted
    - Mass air flow sensor circuit poor electrical connection
  • Before replacing the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with low compress air or mass air flow sensor cleaner. Reset code and drive vehicle. If the code comes back, it may be necessary to replaced the mass air flow sensor.
  • possible symptoms Engine Light ON (or Service Engine Soon Warning Light)
    - Engine stall
    - Engine running rough
    - Excessive fuel consumption
    - Excessive smoke
  • the code is generated when An excessively high voltage from the sensor is sent to Engine Control Module (ECM).
2003 NISSAN Altima Sedan OBDII Codes List

Oct 22, 2014 | 2003 Nissan Altima

1 Answer

Sensor air speed

is that a question or a statement,
you left out, where, why, how, in the question? what, is, how come.? bla bla.
no such thing. (only on air planes) LOL
there is s sensor ground speed called vss.
why do you ask, state problem and your guess.
The car has EFI and has many sensors.
Mass air flow is one , called MAF.
measure flow by weight (mass)

some old euro car did have VAF, volume flow. but not in usa.

Feb 25, 2013 | 2003 Suzuki Aerio

1 Answer

Would a problem be caused to use a 2003 Suzuki Esteem Mass Air Flow Sensor on a 2002 since it seems to be working great

They have to be exactly the same part electrically,etc

No way to know that unless the part number & application is the same

Your cars pcm won't have proper air flow readings if you don't
have the correct sensor

Are they the same,Don't know,that is up to you to research

Dec 17, 2012 | Cars & Trucks

1 Answer

2003 Grand Am Has P0102

It is not an ECM/PCM problem.
P0102 - Mass or Volume Air Flow Circuit Low Input
Possible causes- Faulty mass air flow sensor
- Dirty mass air flow sensor
- Dirty air filter
- Mass air flow sensor harness is open or shorted
- Mass air flow sensor electrical circuit poor connection
- Intake air leaks Tech notes Before replacing the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with low compress air or mass air flow sensor cleaner. Reset code and drive vehicle. If the code comes back, it may be necessary to replaced the mass air flow sensor

Sep 27, 2012 | 2003 Pontiac Grand Am

1 Answer

Changed the mass air flow sensor. Car hard to start

the fuel presure valve on alot of the impalas were faulty..i just replace one a 2004 and the car starts faster and easier....I think i payed $63

Jun 10, 2011 | 2003 Chevrolet Impala

1 Answer

How do you replace the mass air flow sensor i want to do it myself the guy at auto zone said it was easy i have a 2000 impala 3.8

3.8L Engine To Remove:
MAF Location 93174g17.gif

  1. Disconnect the battery ground cable.
  2. Remove the fuel injector cover.
  3. Disconnect the mass air flow (MAF) sensor electrical connector.
  4. Remove the MAF sensor mounting screws.
  5. Remove the MAF sensor from the throttle body.
To Install:
  1. Position the MAF sensor on the throttle body.
  2. Install the MAF sensor mounting screws. Tighten the mounting screws to 27 in lb (3 Nm).
  3. Connect the mass air flow (MAF) sensor electrical connector.
  4. Install the fuel injector cover.
  5. Connect the battery ground cable.
prev.gif next.gif

Nov 12, 2010 | 2000 Chevrolet Impala

1 Answer

How often should you replace an mass air flow sensor on a 2003 L300 saturn?

unless the mass air flow sensor has failed the isn.t any maint interval to change it. use it until it fails replacing it when it is working will not improve performance or fuel mileage

Aug 31, 2010 | 2003 Saturn L-Series

1 Answer

I need to clean/replace the mass air inflow sensor. How to?

In your vehicle, the Mass Airflow Sensor is attached to the air filter assembly.


Fig. The exposed -hot wire- of the MAF sensor

The MAF sensor uses a hot wire sensing element to measure the amount of air entering the engine. Air passing over the hot wire causes it to cool. This hot wire is maintained at 200°C (392°F) above the ambient temperature as measured by a constant cold wire. If the hot wire electronic sensing element must be replaced, then the entire assembly must be replaced. Replacing only the element may change the air flow calibration.

The current required to maintain the temperature of the hot wire is proportional to the mass air flow. The MAF sensor then outputs an analog voltage signal to the PCM proportional to the intake air mass. The PCM calculates the required fuel injector pulse width in order to provide the desired air/fuel ratio. This input is also used in determining transmission electronic pressure control (EPC), shift and torque converter clutch scheduling.

Removal & Installation
  1. Before servicing the vehicle, refer to the Precautions section.
  2. Disconnect the battery ground cable.
  3. Disconnect the MAF sensor electrical connector.
  4. Remove the two retaining screws and the MAF sensor.
  5. To install, reverse the removal procedure.

Fig. Mass Air Flow sensor

hope this help (remember rated and comment this help).

Mar 19, 2010 | 2003 Ford Taurus

1 Answer

What is the code PO102 on a 2002 Chevrolet Impala

code PO102 is mass air flow sensor circuit low frequency condition.what it is saying.MAF sensor element hot wire contaminated or sensor failed.MAF sensor signal shorted to ground or grounded circuit problem.MAF sensor wiring routed close to ignition wires generator solenoids or electric motors.PCM has failed.

Jul 14, 2009 | 2002 Chevrolet Impala

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

63 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts


Level 3 Expert

79865 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

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

Answer questions

Manuals & User Guides