CODE HELP PLEASE! - Ford Powerstroke Diesel Forum
6.0L Performance Parts Discussion What has or has not worked for you?

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post #1 of 2 Old 09-16-2009, 04:44 PM Thread Starter
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I am getting codes P0487 (EGR throttle position control circuit) and P1408 (egr flow) on my 05 f250 when i am running the tuner and do a koer test with my snap-on, but if i program it back to stock it has no codes when running test. why is this and should i worry about it? P0487 stays in memory codes when it is tuned but no codes when stock.
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post #2 of 2 Old 09-16-2009, 06:41 PM
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tuner is shutting off egr.

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