MAF reading low????
08-31-2004, 01:00 PM
#7
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Location: Havelock, NC
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Re: MAF reading low????
i can kinda remember to what the scan had brought up since i dont have the scanner myself. i beleive it was somewhere among....
MAF LOW / Map
most i can rememeber to be honest. i noticed a hose underneath the bellow right before the MAF coming from the filter was unplugged. i plugged it back in but it still gave me the same reading after anothere scan. it wouldn't even let the code be cleared. anyone know whats going on?
MAF LOW / Map
most i can rememeber to be honest. i noticed a hose underneath the bellow right before the MAF coming from the filter was unplugged. i plugged it back in but it still gave me the same reading after anothere scan. it wouldn't even let the code be cleared. anyone know whats going on?
08-31-2004, 01:09 PM
#8
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Re: MAF reading low????
A few things it could be ...
1 A clogged Airfilter *I dont know if that would cause it, but it makes sense*
2 A vacuum leak *Likely*
3 If the filter was recenly cleaned/brand new, it may be possible that the oil from it is coating the MAF and causing the bad readings. In which case, it would need cleaned. Im not sure how to clean it, but I know them things are pretty tiny wires, so id say use a cutip and maybe rubbing alcohol and LIGHTLY touch it.
1 A clogged Airfilter *I dont know if that would cause it, but it makes sense*
2 A vacuum leak *Likely*
3 If the filter was recenly cleaned/brand new, it may be possible that the oil from it is coating the MAF and causing the bad readings. In which case, it would need cleaned. Im not sure how to clean it, but I know them things are pretty tiny wires, so id say use a cutip and maybe rubbing alcohol and LIGHTLY touch it.
08-31-2004, 01:26 PM
#9
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Re: MAF reading low????
ill try the cleaning tonight when i get off work. the filter is a K&N and has been on for 4 months so its not that new. i dont know of any othere hose besidess the one? 
anayone else have some ideas?
anayone else have some ideas?
08-31-2004, 02:07 PM
#10
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Re: MAF reading low????
You need the exact code. If you have a "generic" code list, and the scanner detects DTC 33 or DTC 34, it will indicate "MAP/MAF high" or MAF/MAP low".... and for a 94 and up LT1 that is a problem with the MAP sensor, not the MAF sensor. You need to get the exact code, then go to the LT1-specific code list at Shoebox's Tech Pages for the best list:
http://shbox.com/1/Dtcs.htm
http://shbox.com/1/Dtcs.htm
08-31-2004, 04:48 PM
#11
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Re: MAF reading low????
Originally Posted by Injuneer
You need the exact code. If you have a "generic" code list, and the scanner detects DTC 33 or DTC 34, it will indicate "MAP/MAF high" or MAF/MAP low".... and for a 94 and up LT1 that is a problem with the MAP sensor, not the MAF sensor. You need to get the exact code, then go to the LT1-specific code list at Shoebox's Tech Pages for the best list:
http://shbox.com/1/Dtcs.htm
http://shbox.com/1/Dtcs.htm
after reading your post i know that it is dtc 34 MAF/MAP low.
i hope shoebox has got something for me
08-31-2004, 04:50 PM
#12
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Re: MAF reading low????
shows this:
34 Manifold Absolute Pressure (MAP) sensor circuit (signal voltage low, high vacuum)
now what do i do? sorry to sound so ignorant. just don't wanna go the wrong way with it.
34 Manifold Absolute Pressure (MAP) sensor circuit (signal voltage low, high vacuum)
now what do i do? sorry to sound so ignorant. just don't wanna go the wrong way with it.
08-31-2004, 10:07 PM
#15
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Location: Little Rock, AR
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Re: MAF reading low????
Originally Posted by jare23
thanks alot for the help injuneer! it was just a broken clip on the sensor. D*** thing was just dangling there. thankss for the help.
