C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Mass Air Flow

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Old Jan 8, 2009 | 10:41 PM
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Default Mass Air Flow

When I have the MAF plugged in and start to rev the motor up with no load (in park) the bottom end starts off ok but mid throttle it sounds like the motor plains out and is just sucking air and boggs down. Now when I unplug the mass air flow, the motor with no load, gets past that bogging down stage and revs up better but not the best. Will a new mass air flow sensor fix this or can more be wrong?
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Old Jan 8, 2009 | 10:45 PM
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Default Maf

What year vette? Some have burn off relays too that you want to also check

I see in your profile 85? Maf may be controlled by ecm.
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Old Jan 8, 2009 | 10:51 PM
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85 yeah..
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Old Jan 8, 2009 | 10:57 PM
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Originally Posted by buddylee432
85 yeah..
85 has a burn off module....it is expensive.
Take a look inside the MAF through the screens and check to see the filiment is still intact. If so clean the MAF's connector/socket and reinstall it.
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Old Jan 8, 2009 | 11:03 PM
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How expensive are we talkin for the burn off ad where is it located exactly. The filiment is in tact and I have cleaned it with the spray many times. How do I change the burn off?
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Old Jan 8, 2009 | 11:07 PM
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Originally Posted by buddylee432
How expensive are we talkin for the burn off ad where is it located exactly. The filiment is in tact and I have cleaned it with the spray many times. How do I change the burn off?
It is in behind the dash cluster. The CF member you just bought the MAF from in the F/S section may have an extra burn off module if you think yours is bad...ask him for the details/insights.
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Old Jan 8, 2009 | 11:09 PM
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Will do.if he doesnt have one I found one for 100 bucks...Ill just get both and have spares if one is ok.. Thanks guys
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Old Jan 8, 2009 | 11:11 PM
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Thanks guys. I will get both and keep the good one(s) for spares.
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Old Jan 9, 2009 | 04:33 PM
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Check for codes
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Old Jan 9, 2009 | 05:06 PM
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How dose it run on the road ?
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Old Jan 9, 2009 | 11:38 PM
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Codes lol 12 14 23 25 33 35 55. On the road if you drive it without getting into the throttle it is ok until it hits higher rpms but the MAF isnt hooked up. I purchased a new burn of module and MAF from a guy on here and I am going to see if this will fix the problem. When I got these codes I did not have the IAC hooked up and have not checked for codes after I hooked it up. I had to buy that harness. I also dont have the knock sensor hooked up either. Do I need it hooked up r can I run without it?
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Old Jan 10, 2009 | 11:11 AM
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I would hook everything back up clear the old codes then look for the new ones.
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