early 99 16 max boost - Ford Powerstroke Diesel Forum
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  #1  
Old 05-26-2012, 06:26 PM
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early 99 16 max boost

I have a 99 psd with 100k miles, I have a ts chip, s&b intake, and four inch exhaust, and the edge insight. At wot I hit 16 psi, but no more, I it feels like it runs strong, what do I do to get more boost? Sorry i'm new to this
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Old 05-26-2012, 06:28 PM
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You might have leaks somewhere, exhaust or intake side.
Pressurize intake side.
Check for leaks on exhaust side with black soot marks or leaking/bad EBP and sensor or bad MAP possibly.
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Old 05-26-2012, 06:33 PM
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I'm nit seeing any soot, everything looks pretty clean,
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Old 05-26-2012, 06:37 PM
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Sorry for sounding like an idiot, but i'm just learning this stuff, but what exactly does boost do?
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Old 05-26-2012, 06:37 PM
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If you're using the Edge that reads directly off of the MAP sensor, then either it's correct, the MAP sensor tube is leaking, or the MAP is wrong.
http://en.wikipedia.org/wiki/Turbocharging
If you're using generic TS tunes, than your boost might be a little low for what it should be, but idk.
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Old 05-26-2012, 06:39 PM
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How would I know how to test the map sensor
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Old 05-26-2012, 10:10 PM
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unplug it while it is running, if there is a noticeable difference it is at least working. also check the vacuum line to the map for cracks, if it is an early 99 you will want to look at replacing the vacuum lines. I have an e'99 and I put a boost fooler on it to find that the vacuum line was completely rotten,
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Old 05-27-2012, 05:34 AM
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It's a boost line, but same idea.
Also, unplugging while running, you won't tell a thing. That's for a bad ICP sensor.
You can pressurize the intake system to a known PSI on a mech gauge, then check it against the reading from the MAP on your Edge.
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Old 05-27-2012, 08:53 AM
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Thanks guys I'll check it out, just got done pulling a 13k trailer and boost was staying at 16
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Old 05-27-2012, 01:37 PM
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I can't find anything, even unplugging the red line to the wastegate it stayed exactly the same
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