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2003 Discovery 2 Throwing Codes

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  #1  
Old 01-28-2014, 04:32 PM
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Default 2003 Discovery 2 Throwing Codes
Hello,

My 2003 Discovery II is throwing 3 codes, they are: p0734, p1171, and p1174.

If anyone knows what these are and what could be causing them, please tell me that would be a ton of help! Thanks.
 
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  #2  
Old 01-28-2014, 05:19 PM
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P0734 = incorrect ratio (low/dirty tranny fluid, hydraulic control circuit or other mech tranny problem)
P1171 & 74 = your MAF is starting to fail. Can't really clean it so you're looking a a new one.
 
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Old 01-28-2014, 05:53 PM
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Incorrect ratio code also points to MAF.
 
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Old 01-28-2014, 05:57 PM
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You can clean D2 MAFs. It won't fix broken though. But it will fix dirty.
 
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Old 01-28-2014, 08:31 PM
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Alright thank you all for answering, i will check into these problems and hopefully get them fixed.
 
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Old 07-06-2014, 10:02 PM
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Default How can you tell?
Originally Posted by jafir
You can clean D2 MAFs. It won't fix broken though. But it will fix dirty.
How can you tell if it is broken vs dirty?
 
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