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Old 03-26-2015, 10:31 AM   #1
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Default CEL with Mass air sensor code

Looking for some input, I have a 2006 Silverado 5.3L with the aluminum block. The truck has a K&N air intake and Flowmaster exhaust system on it. While under load or heavy throttle, the CEL comes on for mass air flow sensor. Is there a recommended upgrade sensor to install to fix this issue? I've tried cleaning it with no positive results.
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Old 03-26-2015, 12:15 PM   #2
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What is the exact code?

I'm sure you know that K&N filters, with too much oil can contaminate the sensor....
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Old 03-26-2015, 02:33 PM   #3
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^^^^^^^^^^What he said^^^^^^^^^

I have also seen on some occasions were an aftermarket air filter will cause higher than normal readings, causing the pcm too set the light on.
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Old 03-26-2015, 04:55 PM   #4
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X3. Too much oil on filters can cause havoc on MAF'*.
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