Question about 1997 GMC Safari

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Mass air flow on a 97 gmc safari going bad 2nd time ,why?

We had the maf installed by a mech.8 months ago, now it has the same symtoms as before. cuts off after driving 5 miles, skipping, feels like it is lacking air.

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  • 299 Answers

Check crank sensor.

Posted on Jun 17, 2009

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Maf location 93 safari


Doesn't have a mass air flow sensor , uses a Manifold Absolute Pressure Sensor (MAP Sensor) Speed density control
Symptoms of Bad or Failing Manifold Absolute Pressure Sensor MAP Sensor...
http://www.xcceleration.com/sd-vs-maf.htm

May 14, 2017 | GMC Safari Cars & Trucks

1 Answer

Cold starts


May be a bad idle control valve. or a bad oxygen sensor.

Dec 27, 2013 | Isuzu Ascender Cars & Trucks

1 Answer

My mass air flow sensor went out and had it replaced 3 wks ago. now it blew another one any ideas? 97 bonneville also


No the stalling is caused by something else like a dirty fuel filter of bad fuel pressure due to a worn fuel pump. With a bad O2 and MAF sensor the ECM will go a on open loop mose for those sensors causing bad performance and gasmileage. Replace the O2 sensor and try cleaning the MAF with MAF cleaner and check the wire harness, look for any damages to the wires and replace if needed. As for the stalling, try replacing the fuel filter first and we can go from there. Keep me posted, be glad to help get your car running 100% and save you some money the same time.

Sep 12, 2012 | 1997 Pontiac Bonneville

1 Answer

P0101


Here is the definition of the code.

P0101 GMC Description The Mass Air Flow (MAF) sensor is placed in the stream of intake air. It measures the intake flow rate by measuring a part of the entire intake flow. It consists of a hot film that is supplied with electric current from the Engine Control Module (ECM).

The temperature of the hot film is controlled by the ECM acertain amount. The heat generated by the hot film is reduced as the intake air flows around it. The more air, the greater the heat loss. Therefore, the ECM must supply more electric current to maintain the temperature of the hot film as air flow increases. The ECM detects the air flow by means of this current change.
Faulty mass air flow sensor
- Intake air leaks
- 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
Read more: http://engine-codes.com/p0101_gmc.html#ixzz223ibNx6t

Read more: http://engine-codes.com/p0101_gmc.html#ixzz223i9HR3J

Jul 29, 2012 | 2002 GMC Safari

2 Answers

Po102 gmc safari 99


P0102 indicates a problem with the MAF (mass air flow) sensor. The sensor could be faulty or dirty. Was the air filter removed recently?

Nov 14, 2011 | 1998 GMC Safari

1 Answer

I cleaned the mass air flow sensor of my 98 gmc safari now my van does not want to start what can i do next


Remove air flow sensor connection and try to start, If it is starting have to be replaced MAF sensor

Jan 31, 2011 | 1998 GMC Safari

1 Answer

99 ML430 143k miles, had codes for misfires on cyl 4 and 5. Replaced ignition coils to clear codes, now hard to start from cold. Had p0100 code MAP sensor, found cracked/open vacuum hose, replaced hose....


P0100 OBD-II Trouble Code

Technical Description

Mass Air Flow (MAF) Circuit Malfunction

Basically this means that there's a problem with the Mass Air Flow (MAF) sensor or circuit.

You will likely not notice any serious driving problems, but there may be symptoms like a general decrease in power or sluggishness.
Causes

A code P0100 may mean one or more of the following:

* The MAF may be disconnected, or a wiring connection may be bad.
* The MAF sensor may be faulty.

Possible Solutions

Use an OBD II Reader (or go tou your local parts store and they will for free) and reset the code and see if it comes back.
Then start with the cheapest, easiest repair procedures:

* Check the Mass Air Flow Sensor wiring/harness is connected properly and that there are no broken / frayed wires.
* Unplug and reconnect the MAF wiring harness a few times to clear the contacts.
* Check the voltage of the MAF sensor (refer to a repair manual for vehicle specific information).
* Replace the MAF sensor.

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Sep 17, 2010 | 1999 Mercedes-Benz M-Class

1 Answer

GMC SAFARI 2001 4WD. RANDOM MISFIRE DETECTED PO300 New spark plugs, wires, distriburor, cup, fuel injector(spider), Valve Spring Outer(it was broken) WHAT ELSE CAN BE PROBLEM???


2 things come to mind, confirm you have proper fuel pressure, and if you've got a MAF (mass air flow sensor)
in the intake hose to throttle body, remove it, and spray it clean with Tuner spray cleaner, or electrical spray cleaner from radio shack or similar store, and then try it. Not uncommon for the MAF sensor to dirty and cause what your experiencing. If that doesn't cure it, start checking EGR and EVAP system.

Mar 02, 2010 | 2001 GMC Safari

2 Answers

PO107 maf sensor replaced code erased light then came back on what else could it be?


P 107 is not MAF - (Mass air flow sensor), that code comes up as MAP (manifold absolute pressure ) sensor. ?

Dec 04, 2009 | 2001 GMC Safari

4 Answers

I own a 1997 Pontiac Bonneville my check engine light is on when I got the codes read it said that I had an bad O2 sensor and my mass air flow sensor is bad. My car cuts off on my while I am driving could...


yes the mass air flow will cause the oxygen sensor to have bad readings cause it don't tellthe cumputer to mix the right amount of gas it throughs the whole balance off..i would fix these and see from there...hope i helped..

Jul 09, 2009 | 1997 Pontiac Bonneville

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