Manifold gauge pressure

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Mar 23, 2008 | 05:20 PM

chrisjrosenbohm

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Mountain Pass

Joined: Feb 2003

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From: parkersburg usa

Manifold gauge pressure

Hi i have a 00 f350 4x4 6 speed 274xxx miles predator tuner 6637 filter 4 inch exhaust turbo back hutch mod done fpor shimmed. I no ses light and the onlycode is the air intake heater circuit low. I was going through the live data on the predator and the manifold gauge pressure caught my eye. Idling i was around 16383.o kpa and would sometimes jump dpwn to 0. holdong it at 1500 rpm i would get .8- 1.2 kpa. It runs great but the power is weird. sometimes it runs so good the clutch wont hold in 4th 5th or 6th gear. other times it still has good power but not that good. What do those numbers mean and what sensor controls that?
thanks
chris

Mar 24, 2008 | 01:21 PM

chrisjrosenbohm

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Mountain Pass

Joined: Feb 2003

Posts: 207

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From: parkersburg usa

Any ideas anyone????

Mar 24, 2008 | 01:31 PM

03_PSD

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hopefully someone will chime in with an answer for you.

Mar 24, 2008 | 05:25 PM

F250_

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Joined: Nov 2006

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From: North of Greenville

We'll try to keep this floating to the top for you so someone can chime in with some knowledge to help you.

Mar 25, 2008 | 07:56 AM

03_PSD

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i'm about to think nobody knows chris, but i'll bump it again

Mar 25, 2008 | 08:41 AM

sflem849

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From: SE Wisco

Quote:

Originally Posted by chrisjrosenbohm

Any ideas anyone????

I have one idea and a bump. Fill your sig out so you don't have to tell us what you have every time. Go to User CP in the upper left and fill away.

Mar 25, 2008 | 08:56 AM

chayes01

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From: Stewartsville, Mo.

I have AE and have been doing some monitoring but my measurements seem to be different, mine reads in psi and I don't know the conversion for kpa to psi. What I can tell you is that your Manifold Gauge Pressure (boost) should equal your Manifold Absolute Pressure minus the Barometric pressure. I'm not sure if your Diablo will measure those but I hope this helps.