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Robert Boehm Posted on Dec 18, 2012
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What does the mass air flow sensor look like?

I have a 1988 Volvo 740 sedan. When I drive it, I can feel the engine "surge." Lately, it has been dying and it won't start until it sits for about 20 minutes or so. After it starts and is running down the road, the surging stops for awhile and then the cycle starts all over again. Any suggestions?

1 Answer

Anonymous

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  • Master 645 Answers
  • Posted on Dec 18, 2012
Anonymous
Master
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The mass air flow sensor works in conjunction with the oxygen sensor & the engine control system. While the oxygen sensor...--------------------------------------------------------------------------------------
CARPROG FULL

5 Related Answers

A

Anonymous

  • Posted on Oct 17, 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.
See http://www.greatautohelp.com

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Anonymous

  • 19 Answers
  • Posted on Dec 24, 2008

SOURCE: 99 hyundai accent engine surges and dies at start when cold

There a lot of cuses for this but you need to scan the vehicule before to know what sensor is having troubles, if is too much expensive the scan in your city consider to buy one. I see in ebay a lot of types of OBD2 scanners for $25-30!

Anonymous

  • 21 Answers
  • Posted on May 04, 2009

SOURCE: 2001 Toyota Celica GT RPM surging at Idle

Certainly sounds like the o2 sensors have become contaminated and are not acting as fast as they used to , or are supposed to.

co7196

Ned C Cook

  • 3433 Answers
  • Posted on Oct 28, 2009

SOURCE: Which mass air flow sensor fit ?

Why are you changing around on part no.s They are all calibrated to a specific application. Get the same part no. as what was removed.

Anonymous

  • 3489 Answers
  • Posted on Nov 03, 2009

SOURCE: '93 D21 ka2.4. miss fire,surge, and runs rich

sounds like you have a very dirty mass air flow meter. invest in a new one and be sure to clean the throttle body with an appropriate cleaner and tooth brush.

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Related Questions:

0helpful
1answer

I changed the fuel pump in line in the tank, change the relay switch crankshaft sensor on my 1989 Volvo 740 GL still will not stay started any more than a few minutes does what else could it be

Vacuum leak, oxygen sensor or possible bad air mass sensor. Disconnect the mass air flow sensor and it will go to a default but stay running. If not try disconnecting the oxygen sensor and see if it stays running.
1helpful
3answers

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
0helpful
1answer

Po101 code

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. Check for air leaks on or around any intake pipework using a good spraying of carb cleaner, if the engine surges then that's the leak. Check wiring to Maf and if the inside is dirty, again use carb cleaner liberally...NOTE: do not use Wd40... If the code comes back, it may be necessary to replaced the mass air flow sensor.
1helpful
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Volvo V70 code P0102

that means you have a mass air flow sensor problem located on air intake first try cleaning it be real gentle when cleaning ok thhey sell electrical spray cleaner at auto parts use that then clear the code auto zone can do that for free drive car if it comes back then replace the mass air flow sensor ok let me know
0helpful
1answer

Stalls when outside air temp is over 100

A scan tool would be very helpful here, it may be as simple as a bad coolant temp sensor.

With a scantool you can watch the readings to see what is going on,
it could be a dirty throttle body or sensor.
0helpful
1answer

2004 s40 ,,,,po103

P0103 - Mass or Volume Air Flow Circuit High Input

Possible causes- Dirty mass air flow sensor
- Dirty mass air filter
- Mass air flow sensor harness is open or shorted
- Mass air flow sensor electrical circuit poor connection
- Intake air leaks
- Faulty mass air flow sensor
2helpful
3answers
1helpful
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1990 volvo 740 wagon shuts off while driving

sounds like you have a computer glitch. i would take it to any auto shop and pay 50 bucks so they can take a look at your e.c.u. (engine control unit) we had a similar problem a few years ago with our 1990 volvo 740 gle 2.3l station wagon. it was a glitch with the computer. got a mixed signal with the mass air flow sensor.
1helpful
1answer

1990 honda accord engine surging

Check the throttle sensor and MASS air flow sensor. Throttle sensor cheap check first. MASS nice penny.
0helpful
1answer

Adaptive idle control - 1991 volvo 740 -B230 engine

I suggest you check your fuel pressure and your Mass Air Flow Sensor (MAF). The fuel pumps and the MAF often fail causing these symptoms, but there may be other issues too. I suggest you take it to a qualified mechanic to avoid replacing unnecessary parts, since there are several possible problems.

Bret
RepairPal.com
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