Success story code P0102
#1
Success story code P0102
Over a month ago I had the SES light come on. I've seen this light very little in the 15 years I've owned my Monte.
My friend had a reader; it showed P0102: "Mass Air Flow circ. low input" Now, I know enough not to just slap a new MAF sensor in there. A new one costs over $100. So, I'm kinda **** about researching a problem, and the car was drivable so I took my time. I did remove the throttle body and cleaned it and the throttle plate. It was pretty nasty, especially behind/downstream. Removed and cleaned the EGR valve, new gasket. The Throttle position sensor is pretty easy to test with a multimeter so I did that, it passed. The Idle control valve was only $30 so I threw one at it. Problem still there. There is a good web site that tells how to test sensors, but to test the MAF you need a multimeter that can read Hz. One site even said a bad ground to the PCM could cause this so I removed the PCM and cleaned all.
I finally broke down and bought a reman Cardone MAF at my local Auto Zone. With fingers crossed I installed it. Wa-La! Driving for almost a week now, the light is out and the 199,600 mile engine runs and idles just great. I thought you'd all want to hear a success story!
1999 Monte Carlo Z34
My friend had a reader; it showed P0102: "Mass Air Flow circ. low input" Now, I know enough not to just slap a new MAF sensor in there. A new one costs over $100. So, I'm kinda **** about researching a problem, and the car was drivable so I took my time. I did remove the throttle body and cleaned it and the throttle plate. It was pretty nasty, especially behind/downstream. Removed and cleaned the EGR valve, new gasket. The Throttle position sensor is pretty easy to test with a multimeter so I did that, it passed. The Idle control valve was only $30 so I threw one at it. Problem still there. There is a good web site that tells how to test sensors, but to test the MAF you need a multimeter that can read Hz. One site even said a bad ground to the PCM could cause this so I removed the PCM and cleaned all.
I finally broke down and bought a reman Cardone MAF at my local Auto Zone. With fingers crossed I installed it. Wa-La! Driving for almost a week now, the light is out and the 199,600 mile engine runs and idles just great. I thought you'd all want to hear a success story!
1999 Monte Carlo Z34
Last edited by glasspilot; 06-14-2014 at 01:23 PM. Reason: added info
#2
Congratulations, glad to hear you got it figured out, and from the sounds of it you did some great maintenance work on your car during the process.
Last summer I had to replace both my egr valve and MAF sensor, they both died within a fairly short time of each other, it was kind of aggravating during the process but in the end it is a nice feeling knowing you have new parts under the hood
again glad you got it figure out
Last summer I had to replace both my egr valve and MAF sensor, they both died within a fairly short time of each other, it was kind of aggravating during the process but in the end it is a nice feeling knowing you have new parts under the hood
again glad you got it figure out
#5
yes depending on which way your looking at the engine lol, two bolts hold it on and takes under 5 minutes to replace. Odds are you will be able to re use the paper gasket that is on there, but definitely give it a good once over before just in case. I just picked a used one up at a wreckers for under 20 bucks and it has been working great since
#7
thats good, i replaced mines with some aftermarket before and it crapped out on me less than a year later, i got a AC delco replacement and i havent seen it yet fingers crossed
#9
I finally broke down and bought a reman Cardone MAF at my local Auto Zone. With fingers crossed I installed it. Wa-La! Driving for almost a week now, the light is out and the 199,600 mile engine runs and idles just great.so you have it working ok with a REMAN MAF...i been reading that this is not common.