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P0102 - Low MAF voltage input?

T

TRicker

Hard-core CEG'er
Joined
Jun 25, 2006
Messages
3,931
Location
Center City, MN
what is this? my car runs like crap under 10% throttle, and it jerks badly below that point. it idles, but at a tiny amount of gas applied, it wants to miss and sputter. that's the only code i got. just happenned today. i have an safc on the car, but i have it unhooked at the moment. it ran fine all morning but going home from work it started this right when i got in the car. any thoughts on what can cause the low voltage?
 
unplug your maf and see if you car runs better.

It will revert to a stock table if it can't find a MAF, but will continue to use the maf (even if bad) if it sees the MAF present.
 
stupid me.... i unhooked my safc, leaving the car on the table your talkign about. plugged it back in, worked perfect. i was doing my center console swap and forgot it was out :)
 
TRicker said:
stupid me.... i unhooked my safc, leaving the car on the table your talkign about. plugged it back in, worked perfect. i was doing my center console swap and forgot it was out :)
Click to expand...
ROTFL. How many times have we all done/checked the complicated things and then forgot the simple ones? :laugh: Glad you found the issue. :cool:
 
TRicker said:
what is this? my car runs like crap under 10% throttle, and it jerks badly below that point. it idles, but at a tiny amount of gas applied, it wants to miss and sputter. that's the only code i got. just happenned today. i have an safc on the car, but i have it unhooked at the moment. it ran fine all morning but going home from work it started this right when i got in the car. any thoughts on what can cause the low voltage?
Click to expand...

Finally got my CEL checked out, I got P0102. And reading this post, my car's been doing EXACTLY this for the last while.

So I have this issue on and off intermittently. I know the previous owner had MAF issues so he replaced it (so I doubt it's a bad sensor itself, or so I think).

Also can this be causing my emission issues? I didn't think MAF's could affect emissions unless the car was running like absolute crap?
 
SVTED said:
Finally got my CEL checked out, I got P0102. And reading this post, my car's been doing EXACTLY this for the last while.

So I have this issue on and off intermittently. I know the previous owner had MAF issues so he replaced it (so I doubt it's a bad sensor itself, or so I think).

Also can this be causing my emission issues? I didn't think MAF's could affect emissions unless the car was running like absolute crap?
Click to expand...

I had the P0103 code on my car (high output) I changed the MAF 3 times under warranty and that didn't fix it. However I found out that my TPS had a broken spring so I replaced it and that fixed my problem. I had stumbling and stalling issues.
 
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