Mass Air Flow Sensor
Thread Starter
6th Gear
Joined: Dec 2015
Posts: 6
Likes: 0
Mass Air Flow Sensor
I have a 2012 Grand Sport with a LS3 engine. The check engine light goes on and off (First thing I did was replace my gas cap, which did not help).
I took it to an auto parts store so they could put a OBD scanner on it. The code came up P219A Mass Air Flow Sensor. My MAF is a PBT-GF40 (K19 are the other numbers located on the sensor).
I was wondering, before I go buy a new one, if I can clean this type of mass air flow sensor or is this a type that you cannot clean?
I took it to an auto parts store so they could put a OBD scanner on it. The code came up P219A Mass Air Flow Sensor. My MAF is a PBT-GF40 (K19 are the other numbers located on the sensor).
I was wondering, before I go buy a new one, if I can clean this type of mass air flow sensor or is this a type that you cannot clean?
Last edited by JDHock; Feb 3, 2016 at 06:32 AM.
Drifting
Joined: May 2010
Posts: 1,273
Likes: 74
From: Fairfield County, CT
If the MAF on the 2010 GS is the same as yours then yes. I cleaned mine frequently with a MAF cleaner I got from AutoZone thinking it was dirt causing the code. It wasn't, it was the aftermarket tune. Once fixed, haven't got code again.
Do a google search for steps to take to fix this code. I recall there were many possible solutions (cylinder leak down test, switch the O2 sensors to see if code follows the sensor, test fuel injectors - I had a bent pin, etc.).
http://www.obd-codes.com
Do a google search for steps to take to fix this code. I recall there were many possible solutions (cylinder leak down test, switch the O2 sensors to see if code follows the sensor, test fuel injectors - I had a bent pin, etc.).
http://www.obd-codes.com
Race Director
Joined: May 2004
Posts: 16,667
Likes: 1,209
From: Raleigh, NC
St. Jude Donor '15
That isn't a MAF airflow sensor error and the part number you stated is actually the material the part is made from, not the part number. Polybutylene terephthalate + 40% glass resin (I work in the plastics industry)
It's a code for fueling corrections ("fuel trims") being maxed out on bank 1.
You need to get a real scanner on it and see what the O2 sensors and fuel trim values are doing to get an idea what the problem is. It could be a vacuum or exhaust leak, clogged fuel injector or O2 sensor issue as a few examples. I'm sure there are other things it could be.
Does the car have any aftermarket parts? Is it running the original tune or something else?
It's a code for fueling corrections ("fuel trims") being maxed out on bank 1.
You need to get a real scanner on it and see what the O2 sensors and fuel trim values are doing to get an idea what the problem is. It could be a vacuum or exhaust leak, clogged fuel injector or O2 sensor issue as a few examples. I'm sure there are other things it could be.
Mixture control. bank 1 - value out of range
Last edited by schpenxel; Feb 3, 2016 at 04:56 PM.
Thread Starter
6th Gear
Joined: Dec 2015
Posts: 6
Likes: 0
If the MAF on the 2010 GS is the same as yours then yes. I cleaned mine frequently with a MAF cleaner I got from AutoZone thinking it was dirt causing the code. It wasn't, it was the aftermarket tune. Once fixed, haven't got code again.
Do a google search for steps to take to fix this code. I recall there were many possible solutions (cylinder leak down test, switch the O2 sensors to see if code follows the sensor, test fuel injectors - I had a bent pin, etc.).
http://www.obd-codes.com
Do a google search for steps to take to fix this code. I recall there were many possible solutions (cylinder leak down test, switch the O2 sensors to see if code follows the sensor, test fuel injectors - I had a bent pin, etc.).
http://www.obd-codes.com
Thank you very much, I appreciate the information!
Thread Starter
6th Gear
Joined: Dec 2015
Posts: 6
Likes: 0
That isn't a MAF airflow sensor error and the part number you stated is actually the material the part is made from, not the part number. Polybutylene terephthalate + 40% glass resin (I work in the plastics industry)
It's a code for fueling corrections ("fuel trims") being maxed out on bank 1.
You need to get a real scanner on it and see what the O2 sensors and fuel trim values are doing to get an idea what the problem is. It could be a vacuum or exhaust leak, clogged fuel injector or O2 sensor issue as a few examples. I'm sure there are other things it could be.
Does the car have any aftermarket parts? Is it running the original tune or something else?
It's a code for fueling corrections ("fuel trims") being maxed out on bank 1.
You need to get a real scanner on it and see what the O2 sensors and fuel trim values are doing to get an idea what the problem is. It could be a vacuum or exhaust leak, clogged fuel injector or O2 sensor issue as a few examples. I'm sure there are other things it could be.
Does the car have any aftermarket parts? Is it running the original tune or something else?
Thank you very much, I appreciate the information. Didn't know that was the plastic code! LOL
I do not have any aftermarket parts on my car, its all stock and running the original tune.
Race Director
Joined: May 2004
Posts: 16,667
Likes: 1,209
From: Raleigh, NC
St. Jude Donor '15
Gotcha. Yeah if it's totally stock then there's more than likely a leak (intake air or exhaust), injector issue or O2 sensor issue, in my opinion. Those are my best guesses anyways...
Thread Starter
6th Gear
Joined: Dec 2015
Posts: 6
Likes: 0
That isn't a MAF airflow sensor error and the part number you stated is actually the material the part is made from, not the part number. Polybutylene terephthalate + 40% glass resin (I work in the plastics industry)
It's a code for fueling corrections ("fuel trims") being maxed out on bank 1.
You need to get a real scanner on it and see what the O2 sensors and fuel trim values are doing to get an idea what the problem is. It could be a vacuum or exhaust leak, clogged fuel injector or O2 sensor issue as a few examples. I'm sure there are other things it could be.
Does the car have any aftermarket parts? Is it running the original tune or something else?
It's a code for fueling corrections ("fuel trims") being maxed out on bank 1.
You need to get a real scanner on it and see what the O2 sensors and fuel trim values are doing to get an idea what the problem is. It could be a vacuum or exhaust leak, clogged fuel injector or O2 sensor issue as a few examples. I'm sure there are other things it could be.
Does the car have any aftermarket parts? Is it running the original tune or something else?
I went to another auto parts store yesterday and you are correct it was a Bank 1 fuel mixture not the mass air flow sensor.
Again thanks for the information.
Thread Starter
6th Gear
Joined: Dec 2015
Posts: 6
Likes: 0
I do appreciate the information. I want to try and knock out the small stuff before I have to take the car to a mechanic. I think with everyone's help I can fix this issue myself.
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