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to DPK or not to DPK

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Old Apr 8, 2021 | 12:48 PM
  #1  
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to DPK or not to DPK

well, I bought a DPK and have it ready for install and was waiting on good weather...which is here now.

but, had my PCM reflashed by dealer as part of a recall and now I have idle creep. normal idle reguardless was 600ish before the reflash, now, after a minute of parked idle...creeps to 1000. tap on brake or fuel pedal and it goes back to 600ish than after 1 minute..goes to 1000. repeatable all day.

so...now Im thinking I need to hold off on the DPK....if I install the DPK now...they are going to say the idle creep is becuase of the DPK kit.

 
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Old Apr 8, 2021 | 12:53 PM
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Yes that is part of the calibration, it's to maintain catalyst temperature.
 
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Old Apr 8, 2021 | 01:40 PM
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Our trucks here at work do it as well.
 
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Old Apr 8, 2021 | 02:53 PM
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Originally Posted by AK FORD GUY
Our trucks here at work do it as well.
interesting.....it didn’t do it before the reflash.

so it’s by design, that’s fine with me then.

thanks


 
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Old Apr 8, 2021 | 09:47 PM
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Originally Posted by speakerfritz
well, I bought a DPK and have it ready for install and was waiting on good weather...which is here now.

but, had my PCM reflashed by dealer as part of a recall and now I have idle creep. normal idle reguardless was 600ish before the reflash, now, after a minute of parked idle...creeps to 1000. tap on brake or fuel pedal and it goes back to 600ish than after 1 minute..goes to 1000. repeatable all day.

so...now Im thinking I need to hold off on the DPK....if I install the DPK now...they are going to say the idle creep is becuase of the DPK kit.
yep x2 the idle up is part of the correct ecm programming to keep exhaust stuff happy
my cummins ISC does it to if the temps outside are below 60 , it will ramp up to 1000 . then run down after a bit
 
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