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Old 06-26-2009, 10:26 PM   #1
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no maf voltage

ok.. i have a built boosted focus that has been lacking some major power lately.. ( and no its not because of the weather) its lost alot more power than it should... after finding some boost leaks and replacing the o2 it does run better but still lot like it should.. did some datalogging and found that i am not getting any maf voltage readings... so i replaced the maf... NOPE still no voltage readings.. im prety sure that this is causing all of my problems.. (or at least most of them) where else could i check.. wires look good so im lost what next? please help... eeheeem.... Tom?


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Old 06-26-2009, 11:40 PM   #2
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You need to check and see if you have voltage going to the MAF and then see if you have voltage out , the 2 end wires are IAT do you have IAT

I have a pin-out box at the shop but you would have to have your car there to check it , a pin-out box goes into the ECU plug in then your ECU plugs into that with a pin-out box where you can check each wire voltage going to and from the engine to ECU , they are very hard to get , Ford wont sell them and I wont loan it out

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Old 06-26-2009, 11:57 PM   #3
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Shouldn't this have thrown a P0102?
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Old 06-27-2009, 02:25 PM   #4
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i think it did throw a code.. and i can bring the car up to you in charolette if you are down there.. car runs fine other than doesnt have even close to the horse power it used to..
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Old 06-27-2009, 03:20 PM   #5
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I will be back for a few days in Aug on my way back from FF09

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Old 06-27-2009, 06:23 PM   #6
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do you know about when? so i can ask for it off and meet up with you?
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Old 06-27-2009, 10:47 PM   #7
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just get a digital volt meter gauge. Check OHMS and resistance.

Should do the same as Tom's tool just not as fancy.
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Old 06-28-2009, 07:09 AM   #8
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ok i have one of those... which wires to i attach it to and how much should i see on it? and i dont think its the maf.. like i said i replaced it with a brand new one and its doing the same thing as my old one..
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Old 06-28-2009, 10:24 AM   #9
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Your gonna check the maf wires not the actual maf
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Old 07-01-2009, 10:20 AM   #10
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ok we have to figure out what is wrong with this car.. it is getting worse...please help me figure this out... which wires do i check? what should the voltage be going in and out? what do i check and where?
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