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6.4L Performance Parts Discussion What has or has not worked for you?

 
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post #1 of 10 Old 02-01-2011, 01:38 PM Thread Starter
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WHY?

can somebody tell me why this happened? truck was only driven for about 10min. at normal speeds 30/55 . pulled in driveway and seen that. its about 30deg where im at.
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post #2 of 10 Old 02-01-2011, 01:48 PM
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Is your coolant low?

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post #3 of 10 Old 02-01-2011, 01:51 PM Thread Starter
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no. anybody else?
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post #4 of 10 Old 02-01-2011, 01:54 PM
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Every now and then my mini will buy out and give me close to same reading.
The funny thing is that, that's not hot coolant, thats very cold coolant.
Don't know why it happens. You can try H&Ss website. They have forums that moderators read.


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post #5 of 10 Old 02-01-2011, 01:56 PM
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How cold is it outside?

Most companies have a parameter that defuels until the engine oil and coolant are warm

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post #6 of 10 Old 02-01-2011, 01:59 PM
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Quote:
Originally Posted by jato1229 View Post
can somebody tell me why this happened? truck was only driven for about 10min. at normal speeds 30/55 . pulled in driveway and seen that. its about 30deg where im at.
woww thats not right, must be a bug..call H&S asap...
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post #7 of 10 Old 02-01-2011, 02:53 PM
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We have seen this one a few times. There is a communication error between the truck and the Mini Maxx at some point during initialization. This causes the coolant reading on the Mini Maxx to peg at one end of the temperature monitoring spectrum. It will also cause a "hot coolant" defuel due to the way we do some of the calculations inside the Mini Maxx itself. We are looking into a solution for this, but at this point have no ETA on availability. For now, just unplug the unit and plug it back in, and it will reset it. It should only happen on very rare occasions when the variables are just right to cause it.
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post #8 of 10 Old 02-01-2011, 03:43 PM
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I have had this happen to my truck a couple times a while back and I just cycled the power on the minimax and its fine.
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post #9 of 10 Old 02-01-2011, 05:09 PM
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-40 ECT is full v-ref and would indicate an open circuit somewhere in the ect wires...........if you had an actual scantool

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post #10 of 10 Old 02-02-2011, 05:07 AM
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Quote:
Originally Posted by jato1229 View Post
can somebody tell me why this happened? truck was only driven for about 10min. at normal speeds 30/55 . pulled in driveway and seen that. its about 30deg where im at.
That same thing has happened to me twice. If you have the Mini hard wired to the truck just toggle the switch that is on the OBD II port reader and it will reset itself. Once the mini resets drvie it as you normally would.

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