p0102 code
10-03-2015, 10:32 PM
#1
Instructor
Thread Starter
p0102 code
I just replaced the PCM because my old one turned to a mound of corrosion. Before I replaced the pcm I was getting this code and was pretty certain that it was the maf so I replaced it. I am still getting the code.
With a scan tool under live data the number is around 7.85 at idle and when I rev it the number jumps to the 20-35 range
. Before this wasn't happening with the old pcm.
I am also experiencing a random miss fire I think. I'm not exactly sure how to describe it. The rpms just seem to drop at any speed. The car did sit for 2 months with a 1/8 of a tank of gas in it. So i added 10 gallons and put in gas treatment. This could also be caused by a maf not sure.
With a scan tool under live data the number is around 7.85 at idle and when I rev it the number jumps to the 20-35 range
. Before this wasn't happening with the old pcm. I am also experiencing a random miss fire I think. I'm not exactly sure how to describe it. The rpms just seem to drop at any speed. The car did sit for 2 months with a 1/8 of a tank of gas in it. So i added 10 gallons and put in gas treatment. This could also be caused by a maf not sure.
10-05-2015, 07:56 AM
#3
Team Owner
I just got this code on my GM powered motorhome. My issue (known design problem) is that water gets into the air filter housing and wets the filter and the MAF. The MAF then will throw the P0102 code.
What type of filter and intake are you running and is your filter clean? Are you running a K&N filter or other type of oiled filter? I would go simple first and looking for the issue.
What type of filter and intake are you running and is your filter clean? Are you running a K&N filter or other type of oiled filter? I would go simple first and looking for the issue.
10-06-2015, 09:13 PM
#4
Instructor
Thread Starter
I threw the old MAF sensor in and it works fine.
If you guys are wondering if that mesh screen makes a different it does. The live data was putting out a 7-8 at idle with the old sensor that has no mesh in it, it puts out a 10 or above. I guess that is the measure of airflow through the sensor.
Also the replacement one was under warranty so I sent it back and they are sending me a brand new one. It is a Walker brand.
I have the ram air intake (vararam)
If you guys are wondering if that mesh screen makes a different it does. The live data was putting out a 7-8 at idle with the old sensor that has no mesh in it, it puts out a 10 or above. I guess that is the measure of airflow through the sensor.
Also the replacement one was under warranty so I sent it back and they are sending me a brand new one. It is a Walker brand.
I have the ram air intake (vararam)
12-21-2015, 10:36 AM
#5
Racer
Member Since: Oct 2012
Location: Baltimore County, Maryland
Posts: 435
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I know this is old but what exactly does low circuit mean? I just purchased the ls3 blade style intake and had to change the tables for the MAF and now I am getting this P0102 low circuit code. I am wondering if it has to do with the adapter not fitting perfectly.
12-21-2015, 10:41 AM
#6
Le Mans Master
Mr. Sam