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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 11-29-2007, 07:44 PM
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HUMTECH HUMTECH is offline
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Default Re: MAF sensor defect ?

If you are having missfires all on one bank (bank 2 in your case) I can guarentee the right side catalytic converter has too much backpressure causing all cylinders on the right side to missfire. anything above 1 psi is excessive. As for no oil pressure I would check with a mechanical guage, could just be the sender or the gauge in the cluster.
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Old 11-29-2007, 08:11 PM
Rene S. Nielsen Rene S. Nielsen is offline
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Default Re: MAF sensor defect ?

Hi Humtech

I tried pulling the top of on the right side, no oil. I even tried a manuel oil pressure gauge.

The engine have been running a bit without enough oil pressure, so I need to do a complete overhaul.

But you might very well be right about the right catalytic converter. I will have a look at that.

Is there anyway to test this before I reinstall the engine ?

Rene
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Old 11-29-2007, 11:22 PM
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Arrow Re: MAF sensor defect ?

Rene,

Before you rebuild the motor, if you have some cash on hand, you might want to consider the Duramax Diesel. There is a post on it here:
http://www.elcovaforums.com/forums/showthread.php?t=27007&page=2&highlight=duramax+co nversion and I understand that it can be done for much less than Predator motorsport charges. It just seems like a good time to consider this since you already have the engine removed. Good luck!
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Old 11-30-2007, 01:52 AM
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Default Re: MAF sensor defect ?

No way I know of to check the cat for backpressure unless its running, buy if ya decide to go duramax which is a great idea you will be eliminating the cats anyway.
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Old 11-30-2007, 03:57 AM
Takecover Takecover is offline
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Default Re: MAF sensor defect ?

Sorry to hear about your problem! I sure would like to see more pictures of that Elanor Mustang in the back ground on the third picture. It looks great!
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