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Losing boost pressure?

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Old Oct 11, 2008 | 09:40 PM
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hucka1a's Avatar
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Losing boost pressure?

Hey guys,
I was driving my truck on the interstate and got to 92-93MPH and my boost started dropping. It was at 22psi and started dropping, and their was no CEL. Is this normal? I let off for a minute, then went wot boost builds fine until 92-93 mph and starts dropping again. I thought that when refueling occurs you get a CEL?
Thanks
 
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Old Oct 11, 2008 | 09:49 PM
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well I thought the governor was at 100mph....but maybe yours is at 90 or 95? It will cause the truck to de-fuel, unless you have a chip or tuner, that will usually over-ride that
 
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Old Oct 11, 2008 | 10:07 PM
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Originally Posted by UP_There
well I thought the governor was at 100mph....but maybe yours is at 90 or 95? It will cause the truck to de-fuel, unless you have a chip or tuner, that will usually over-ride that
I thought it was 94MPH for the defueling
 
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Old Oct 11, 2008 | 10:12 PM
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at stock mine defuels at 93 mph
 
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Old Oct 11, 2008 | 10:13 PM
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Originally Posted by bdrummonds
I thought it was 94MPH for the defueling
That's about right. Where are you driving like that sustained?
 
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Old Oct 11, 2008 | 10:17 PM
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Yep, you found the speed limiter.
 
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Old Oct 11, 2008 | 10:31 PM
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Thanks guys, I figured that's what it was. I just wanted to make sure.
Originally Posted by Tenn01PSD350
That's about right. Where are you driving like that sustained?
There's a couple of nice long straight a ways on 81.
Thanks again
 
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Old Oct 11, 2008 | 10:32 PM
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Originally Posted by Tenn01PSD350
That's about right. Where are you driving like that sustained?
says the spider to the fly........
 
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Old Oct 11, 2008 | 10:36 PM
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Originally Posted by bdrummonds
says the spider to the fly........
Nah, I know you can do this out west pretty regularly. I told you the same thing, when I get stupid and play, I need to be ready to pay.
 
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Old Oct 11, 2008 | 11:40 PM
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Originally Posted by hucka1a
There's a couple of nice long straight a ways on 81.
Thanks again
Morristown to Johnson city you have some nice LONG straights with some Smokies on the right day .

Best thing you need to do Huck is to get the "DP Tuner" mod to remove the speed limiter .
 
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Old Oct 11, 2008 | 11:58 PM
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Originally Posted by jdecker88
Morristown to Johnson city you have some nice LONG straights with some Smokies on the right day .

Best thing you need to do Huck is to get the "DP Tuner" mod to remove the speed limiter .
I'm workin' on it, slowly but surely
 
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