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Old 04-14-2017, 08:55 AM   #1
tbrown5079
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P0171 and P0174 codes

started getting these P0171 and P0i74 codes, so I will look for a vacuum leak. What is the clicking sound when I erase the codes with the scanner?
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Old 04-14-2017, 11:03 PM   #2
BR3W CITY
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Re: P0171 and P0174 codes

Quote:
Originally Posted by tbrown5079 View Post
What is the clicking sound when I erase the codes with the scanner?
The throttle blades snapping open and closed. It tests the min/max on the TB.
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Old 04-15-2017, 07:52 AM   #3
truckdude239
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Re: P0171 and P0174 codes

More then likey if its not a dirty maf then you need intake gaskets
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