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Old 02-13-2012, 08:53 PM   #1
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Default 2002 bonneville 3.8

so heres the story i have a 02 bonneville 3.8 l engine light is on comes up with a code for low voltage at maf i have pulled the wire off and checked have 12 volts ground and your ref 5.0 volts but im reading 0 with the scanner when i look at the readings and does have a code for seconday air injection pump too any help would be great
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Old 02-14-2012, 09:11 AM   #2
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What are the codes?
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Old 02-15-2012, 08:51 PM   #3
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The codes are p01032 p0412 p0418 p0443 thanks bill
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Old 02-15-2012, 11:16 PM   #4
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Old 02-16-2012, 08:03 AM   #5
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these are all control circuit errors, check all the fuses, i looked at the man. they dont share a common fuse. sometimes a low or failing battery will cause issues like this as well as loose or corroded pos or ground connections
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Old 02-16-2012, 09:20 PM   #6
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thanks i will test the battery and then do some of the other test
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