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Exhaust backpressure: How much is too much?

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  #16  
Old 12-18-2010, 10:32 AM
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Well, it's the same basics as your '95 with the difference being an electric fuel pump.
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  #17  
Old 12-18-2010, 10:53 AM
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So, what kind of issues would come to mind that cause low power and a chip has no influence on?
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Old 12-18-2010, 12:11 PM
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Figure out if you have a bad ebp sensor and go from there. We know it's limited to the effects it has on performance but if it is really reading that high there is definately a prob on the exaust side.
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  #19  
Old 12-18-2010, 12:32 PM
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Quote:
Originally Posted by plgebbia View Post
So, what kind of issues would come to mind that cause low power and a chip has no influence on?
Along the same lines as bulla's thinking, I would be checking the exhaust back pressure valve to make sure that it's fully open.
Does this particular truck have a catalytic converter on it? Some do some don't and it might be clogged.
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  #20  
Old 12-18-2010, 10:30 PM
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It was a bad sensor, put in a different one and it is 14-26 psi now. there is deffinately a power issue though. The customer picked it up today, but will be bringing it back aroun the first of the year for me to find the power issue.

I will start a specific thread for that.

Thanks for the help guys!
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  #21  
Old 12-18-2010, 10:37 PM
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Thanks for the info. We'll see what we can do when you post back.
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  #22  
Old 09-12-2017, 09:39 AM
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sub'd, Im having similar issues
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  #23  
Old 09-13-2017, 02:37 PM
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7 year old thread bro, not too many more replies coming.

Go ahead and start a new thread so we can give your drivability issue our undivided attention.
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