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Odd Superchips 3815 Issue

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Old 03-14-2008, 10:21 AM
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Default Odd Superchips 3815 Issue
OK, here it is if I can explain it right. When my truck is programmed with the 3815 to the 87 Tune, only other adjustment is speed limiter and tire size, I get a check engine light, the code is 420, which is a bad O2 sensor. The CEL comes on after about half a tank. I cleared the CEL and set back to stock to get ready to take to the shop. Now 2 tanks later no CEL. I have gotten the light three times when the truck is programmed. Any ideas? I want the CEL on so I can get the O2 sensor replaced under warranty.
 
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Old 03-14-2008, 11:29 AM
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Default RE: Odd Superchips 3815 Issue
Wow, thats an odd one.Sorry, no idea what might be causing this issue. Does it repeat on the performance tune?
 
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Old 03-14-2008, 08:50 PM
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Default RE: Odd Superchips 3815 Issue
Get on the Superchips Flashpaq forum I'm sure you'll get an answer pretty quick...

http://www.flashpaq.com/forum/index.php
 
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Old 03-14-2008, 09:30 PM
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Default RE: Odd Superchips 3815 Issue
Good advice Ham! Hows Pappy doin, i miss the old fart
 
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Old 03-14-2008, 09:35 PM
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Default RE: Odd Superchips 3815 Issue
Not too good I'm afraid. Personal issues when last I talked to him. PM me...
 
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Old 03-14-2008, 09:41 PM
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Default RE: Odd Superchips 3815 Issue
Hmmm lets see. Programmer on, CEL on. No programmer, no CEL. Might this be a programmer malfunction.
 
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Old 03-16-2008, 10:42 PM
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Default RE: Odd Superchips 3815 Issue
Since the economy tune might be leaning things out, that may be the diffence in the exhaust, tripping your O2 sensor.
 
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