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PO420 Code

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Old Jul 16, 2009 | 02:14 PM
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  #21  
drewskie043's Avatar
Joined: Oct 2008
Posts: 432
From: St. Paul, MN
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oh yes i know it isn't for my car. i was just curious as to what actually causes the code. being a gearhead, i'm interested in the workings of all vehicles, especially montes of any vintage
 
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Old Jul 16, 2009 | 02:20 PM
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  #22  
ChibiBlackSheep's Avatar

Monte Of The Month -- August 2014
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From: Southeast PA
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Your computer in your car gets SOOO used to the restrictions, that when it finally starts to suddenly read more air flow it thinks something is broken.
 
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Old Jul 16, 2009 | 03:18 PM
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AwesomeSS's Avatar
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Stupid computer LOL!!!
 
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