low input to the MAF
Thread Starter
Teching In
Joined: Sep 2009
Posts: 5
Likes: 0
From: San Antonio, TX
low input to the MAF anybody know what this means i've replaced the maf twice and cleaned all the connections and everything, i'm really in distress trying to fix it. but idk what the deal is so if you have any advice i would greatly appreciate 
Is the car running real crappy? If so my buddy has this problem on his nova and can't seem to figure out either. If you find something out on the side please post up! Good luck man.
got this from another site
"P0102 MAF Low Frequency
Page 6-1416 of 2K manual
This DTC is set when PCM reads too low an airflow thru MAF as based on information from other sensors, and is set when engine is running, battery is charged (greater than 8 volts), and the MAF shows less than 10Hz for more than 1 second, on the second consecutive occurance. Both these codes will clear after 3 NON- consecutive aperance of the above conditions.
First inspect for a vacuum leak, a PCV leak, a bad PCV valve, dipstick or oil cap not tight.
1. Inspect all MAF and PCM connections for debris or damage.
2, With engine idling, and a scan tool, confirm MAF is below 10Hz. If so, check ENG SEN fuse, and then confirm for 5V at MAF signal wire and ground. If OK, continue below. IF MAF is above 10Hz, there has got to be an intake of unmetered air - see above, and also inspect ALL intake components.
3. Check for all continuity on MAF wiring between PCM and also to grounds, as indicated by schematics.
4. Replace MAF sensor."
My guess would be a ground coming a little loose, or vacuum leak
"P0102 MAF Low Frequency
Page 6-1416 of 2K manual
This DTC is set when PCM reads too low an airflow thru MAF as based on information from other sensors, and is set when engine is running, battery is charged (greater than 8 volts), and the MAF shows less than 10Hz for more than 1 second, on the second consecutive occurance. Both these codes will clear after 3 NON- consecutive aperance of the above conditions.
First inspect for a vacuum leak, a PCV leak, a bad PCV valve, dipstick or oil cap not tight.
1. Inspect all MAF and PCM connections for debris or damage.
2, With engine idling, and a scan tool, confirm MAF is below 10Hz. If so, check ENG SEN fuse, and then confirm for 5V at MAF signal wire and ground. If OK, continue below. IF MAF is above 10Hz, there has got to be an intake of unmetered air - see above, and also inspect ALL intake components.
3. Check for all continuity on MAF wiring between PCM and also to grounds, as indicated by schematics.
4. Replace MAF sensor."
My guess would be a ground coming a little loose, or vacuum leak
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Thread Starter
Teching In
Joined: Sep 2009
Posts: 5
Likes: 0
From: San Antonio, TX
nevermind i got the codes erased and it ran with out the ses light till i turned it off then when i went to get groceries it turned back on again same damn code. i'm gonna take a look at that sensor in the morning fixing the vacuum hose did help out alot tho.
Thread Starter
Teching In
Joined: Sep 2009
Posts: 5
Likes: 0
From: San Antonio, TX
alright fellas i think i finally fixed it the eng sen fuse has been replaced and theres no more codes or ses light. i'll keep yall updated on its status.
thanks every1 for all the advice and tips i really couldnt have done it without ya
thanks every1 for all the advice and tips i really couldnt have done it without ya
