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Old 05-25-2009, 09:58 PM
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Defuel question????

This is kind of a broad question but I would like to know what sensors would cause my truck to defuel?
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Old 05-25-2009, 10:00 PM
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that would be your map sensor. it monitors your boost levels and when it gets to 22 or 26ish. somewhere around there it tells the computer hey i dont think this is safe easy on the fuel.
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Old 05-25-2009, 10:05 PM
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is there a way to test it?
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Old 05-25-2009, 11:31 PM
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You begin to defuel on coolant temperature at 221 degrees F according to the PC-ED manual; on oil temperature at 253 degrees F; at 4000 rpm's; and at 95 mph.

cliford -
I was not aware of the MAP sensor being part of the defuel strategy. Do you have a reference for that?
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Old 05-26-2009, 08:02 AM
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Quote:
Originally Posted by bismic View Post
You begin to defuel on coolant temperature at 221 degrees F according to the PC-ED manual; on oil temperature at 253 degrees F; at 4000 rpm's; and at 95 mph.

cliford -
I was not aware of the MAP sensor being part of the defuel strategy. Do you have a reference for that?
Is this boost fooler worth it??

yea just use the search function at search boost fooler.

Quote:
Originally Posted by alwil View Post
is there a way to test it?
what do you mean test it?
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Old 05-26-2009, 09:24 AM
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Does this apply to a 6.0L also? or just 7.3L
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Old 05-26-2009, 09:26 AM
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Quote:
Originally Posted by cliford View Post
that would be your map sensor. it monitors your boost levels and when it gets to 22 or 26ish. somewhere around there it tells the computer hey i dont think this is safe easy on the fuel.
Quote:
Originally Posted by cliford View Post
Is this boost fooler worth it??

yea just use the search function at search boost fooler.



what do you mean test it?
Cliford's info is 7.3 only. It has no bearing on your truck
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Old 05-26-2009, 09:28 AM
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man im horrible at looking at what section things are posted
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Old 05-26-2009, 09:29 AM
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Quote:
Originally Posted by bismic View Post
You begin to defuel on coolant temperature at 221 degrees F according to the PC-ED manual; on oil temperature at 253 degrees F; at 4000 rpm's; and at 95 mph.

cliford -
I was not aware of the MAP sensor being part of the defuel strategy. Do you have a reference for that?
I have the same power cold as I do warmed right up, my coolant has never gone that high on WOT.....I know my EOT sensor is failing cause it reads 50* cooler than my ECT even after an hour of highway driving.

Do I need a boost fooler for a 6.0l?
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Old 05-26-2009, 09:34 AM
Almostdunfukinwidit


 

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Quote:
Originally Posted by alwil View Post
I have the same power cold as I do warmed right up, my coolant has never gone that high on WOT.....I know my EOT sensor is failing cause it reads 50* cooler than my ECT even after an hour of highway driving.

Do I need a boost fooler for a 6.0l?
No you dont need a boost fooler. But either you need a new EOT sensor or EGR cooler.

Acceptable spec is within 20 degrees of each other
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