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David
Dodge Dakota
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8/25/2003
19:29:40
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 Subject: What does the 420 code mean
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Message:
Got my truck checked and it came up 420. looked in the Diagnostic code book and I don't know what it means.
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BobMarley
Dodge Dakota
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8/25/2003
20:34:43
| RE: What does the 420 code mean
IP: Logged
Message:
means its toking time
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J and J Auto
Dodge Dakota
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8/25/2003
22:10:52
| RE: What does the 420 code mean
IP: Logged
Message:
PO420
Catalyst System Efficiency Below Threshold (Bank 1)
O2 sensor or bad cat
First check the connections on the sensors
Larry
J&J Auto
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IntenseDak39
*GenIII*
8/26/2003
12:26:16
| RE: What does the 420 code mean
IP: Logged
Message:
i get that code about every other week thanx to not have a cat. I have heard that you can simply ziptie the downstream O2 sensor to the frame and it will fix that problem.
1998 Regular Cab V6 Auto
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