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Go Back   Hummer Forums by Elcova > Hummer H2 Discussion Forums > Technical Discussion and Customizing your H2

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  #1  
Old 07-20-2007, 03:01 PM
Rene S. Nielsen Rene S. Nielsen is offline
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Location: Denmark
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Default MAF sensor defect ?

Hi

I observed mig check engine light came on the other day (sometimes flashing), but being a long way from home, I slowed down checked engine oil and continued home.

Went to the shop the other day, the told me that i needed a new MAF sensor, but they would need to get back to me with the price. Told me to drive slowly, but no problem.

Yesterday the car almost died on me, and is very reluctant to drive past 1500 RPM.

Got the price for the MAF today 800$ ??? (In Denmark).

that?s outrageous -

If I step on the it, it will nearly stop, and it's not driving well, Do you guys think that the MAF sensor is doing all this ?

Can i disassemble the MAF and fix anything myself (What?s inside it anyway)

Do you have a good cheap place where I can order on online and have it sent to Denmark ?

Regards
Rene
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  #2  
Old 07-20-2007, 03:37 PM
Humdingah Humdingah is offline
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Default Re: MAF sensor defect ?

An inexpensive attempt at a fix may be to use some cleaner on the MAF wires...sometimes they'll get dirty and/or oily (especially if using an oiled aftermarket filter like a K&N/Volant, etc.) and will cause issues. You should be able to get a specific MAF cleaner at an auto parts store or you can use electronics cleaner on it. Worst case you can use alcohol and a cotton swab...just be careful as the wires in the sensor are thin and fragile. Let it dry well and give it a shot...much cheaper than $800 and if it works you're good to go.
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  #3  
Old 07-20-2007, 04:20 PM
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tomp tomp is offline
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Default Re: MAF sensor defect ?

Let me know if you need one, as I have a new one at the house. PM me if interested and make offer. We should be able to ship to Denmark from the US right?
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  #4  
Old 07-20-2007, 04:29 PM
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HUM GOOD HUM GOOD is offline
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Default Re: MAF sensor defect ?

I also have my stock one I changed out at 30,000 miles
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Old 07-21-2007, 11:44 PM
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HUMTECH HUMTECH is offline
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Default Re: MAF sensor defect ?

Clean the MAF sensor with carb cleaner and also clean the throttle body with the same. Open the butterfly valve and clean it really well. Codes set? what are they. If you have p0300 set you need to check your catalytic converter backpressure anything 1 psi and over will cause engine missfire on that bank and create A major lack of power.
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  #6  
Old 07-22-2007, 12:25 AM
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IRA51 IRA51 is offline
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Default Re: MAF sensor defect ?

I have had the best luck useing spray can of electrical parts cleaner . if you have an oiled air filter (K&N) they can cause this problem if over oiled . if it is bad and needs to be replaced i'm sure if you mail order one from the USA it won't cost any where near $800.00 .$300.00 includeing shipping and import fees should kill it dead.
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Last edited by IRA51 : 07-22-2007 at 12:28 AM.
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