need help with ses light

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Old May 20, 2009 | 09:33 AM
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slick red z's Avatar
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From: katy area
Default need help with ses light

like the tittle says i got a ses light that says low input maf,vaf.changed the maf and it is still there,car is driving really bad,anybody ever had that problem? any help would be appreciated,thanks
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Old May 21, 2009 | 10:52 PM
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what do you mean in "driving really bad"? i had to replace my descreened MAF a few months back with another new stocker with the screen. i couldn't ever go WOT at any point through the rpm range, worse than normal gas mileage. the sensors i guess either burned up or just got old and it really affected my driving. it's all good since the swap. hope this helps somewhat.
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Old May 22, 2009 | 06:56 AM
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If the other MAF changed nothing then it's very likely a wiring problem. Check the plugs and wiring from the MAF to the PCM visually and with a DVOM. Until you get it figured out you will be better off driving the car with the MAF unplugged. It's better to have no signal and let the PCM rely on other inputs than to give the PCM a bad signal that throws everything off. Your car will run better with it unplugged until you fix the real problem. A professional technition could fix this in a few hours or less in most cases.

Vernon
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Old May 22, 2009 | 08:36 AM
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Check the "eng sen" Fuse under the hood. I betcha lunch its blown!
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Old May 22, 2009 | 08:37 AM
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Originally Posted by Manic Mechanic
If the other MAF changed nothing then it's very likely a wiring problem. Check the plugs and wiring from the MAF to the PCM visually and with a DVOM. Until you get it figured out you will be better off driving the car with the MAF unplugged. It's better to have no signal and let the PCM rely on other inputs than to give the PCM a bad signal that throws everything off. Your car will run better with it unplugged until you fix the real problem. A professional technition could fix this in a few hours or less in most cases.

Vernon
When the MAF doesnt read its already in SD. No reason to unplug it!
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Old May 22, 2009 | 09:39 AM
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Originally Posted by Mike TexaSS
Check the "eng sen" Fuse under the hood. I betcha lunch its blown!
I"ll be damn mike,I owe you lunch buddy, what causes that?
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