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Old 07-10-2013, 07:49 AM   #1
scooby82
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Member#: 299224
Join Date: Oct 2011
Chapter/Region: International
Location: Sydney
Vehicle:
1989 Legacy RS

Default Map sensor reading wrong

Got a problem with my standard map sensor reading 8psi low. Vacuum is reading correct but 20psi on 2 seperate gauges reads 12psi in my logs. Tried other map sensors still the same.
Checked table and values are standard.
Has anyone got any ideas?
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Old 07-10-2013, 09:55 AM   #2
the suicidal eggroll
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Join Date: Jan 2004
Chapter/Region: RMIC
Location: Broomfield, CO
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2005 STi
2012 WRX

Default

What parameter are you logging? Some of them are capped arbitrarily low, if you have it you should be logging the 4-byte MRP.
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Old 07-11-2013, 06:56 AM   #3
scooby82
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Join Date: Oct 2011
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Location: Sydney
Vehicle:
1989 Legacy RS

Default

It's a 02 WRX so I don't think it has 4 byte. Tried sll options but usually use direct manifold pressure. Think maybe high resistance in wiring is the cause. Runs fine but would like to log accurate boost. Can I rescale to suit. Does anyone know the formula.
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