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Engine light is on steady

Po102 mass air flow

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  • barry_chambe Nov 22, 2008

    It pointed us in the right direction.  Thank you.



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The sensor is indicating to low of a voltage for normal operation you need to replace it

Posted on Nov 19, 2008

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1997 gmc sierra fix the code po102


code po102 refers to mass air flow(MAF) sensor/volume air flow (VAF) sensor---low input======causes --wiring short to ground---MAF/VAF sensor ---ECM

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What do all these codes mean PO135-PO300-PO404-PO102-PO440


po135 is o2 sencer on drivers side. will be the first one. po300 is random/multiple misfire.po404 is a egr code. po102 mass air flow circuit low input. po440 evap emission control system malfunction

Dec 23, 2012 | Cars & Trucks

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Had a po102 code on a 2002 3800 engine chevy check voltage at 12 volts.cleaned sensor. reset code now it says po102 pd with no engine,but engine stalls when driving


HI, The DTC set PO102 is for your MAF (mass air flow) sensor. this sensors measures the air moving past it my heating a fine wire much like one inside a light bulb. Even cleaning these will not get the contaminates off. That little wire gets very hot and if dirt gets on it it will bake to it then this throws off its readings for your computer. If you checked and you have your 5 volt reference for this sensor the only other thing is to replace it. You can get re-manufactured one now at any major parts store. Good luck

Aug 28, 2010 | 2002 Chevrolet Monte Carlo

2 Answers

Want to know engine light p0102 code means


P0102 is the generic DTC (Data Trouble Code) for (Mass or Volume Air Flow Circuit Low Input), and it would most likely be a fault with the MAF (Mass Air Flow) sensor.

The MAF sensor could be dirty or faulty, and there might even be restricted air flow to the MAF sensor (like a plugged up air filter). Also be sure that there are no air or vacuum leaks in the air induction system especially between the MAF sensor and the throttle body and that the hose clamps on the air induction system are all tight.

Jun 08, 2010 | 2001 Chevrolet Venture

1 Answer

Ses light on code po102 and po171 2000 buck lesabre


Have 2000 Buick Lesabre custom every time car gets up to operating temp. the engine misses going down the road , also let car sit and idle and it shuts off after about 2 minutes , my code reads PO171 system to lean bank 1, changed co2 censor, mass air flow censor, plug wires, and plugs.

May 15, 2010 | 2000 Buick LeSabre

1 Answer

I have a code PO102 when I ahd my engine checked. What is the usual problem that casues this. Is it the hose? the MAF? or the Mas absolute pressure sensor? Peg The check the engine light went on so we...


COULD BE A FEW THINGS, WIRING SHORT TO EARTH,MASS AIR FLOW SENSOR,VOLUME AIR FLOW SENSOR OR ENGINE CONTROL MODULE, BUT CHECK AIR INTAKE HOSE FOR LEAKS/ SPLITS FIRST

Apr 25, 2010 | 2002 Buick LeSabre

2 Answers

CODE PO102 after Mass Air Flow Sensor replaced


Most faultcodes don't disappear automaticly, the have to be 'reset' manually after repairing. It sounds like the code didn't get erased after replacing the MAF. You could try to disconnect the battery for 10 minutes (disconnect and reconnect the negative (-) pole), which should erase the code.

Whenever the engine light still comes back on after that, there probably still is some (other) problem ...

Aug 24, 2009 | 2002 Pontiac Grand Prix

1 Answer

Code po102 came up on my daughter's 2002 Buiick Le Sabre the engine is a 3800 v-8


You can remove the mass air flow sensor with some carb cleaner. You will see 2 wires inside of the sensor to clean. If it does not work you will most likely need a mass air flow sensor.

Jun 27, 2009 | Buick LeSabre Cars & Trucks

1 Answer

Po102 mass or volume air flow circuit low input


did it have the same code before you change the 02 sensor .cause it should of been po135 for an 02 sensor 1 bank .the mass is the one in the air breather

Feb 16, 2009 | 1996 Volkswagen Jetta

2 Answers

CODE PO102


sounds like the mass air flow sensor. It is in the intake line squareish part with 2 tamper [proof torque screws.

Nov 12, 2008 | 2002 Pontiac Grand Prix

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