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Stage I & Stage II OBD

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Old 18 Nov 2003, 02:49 pm
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Default Stage I & Stage II OBD

# Bar Boost comment:

especially since certain OBD functions were shut off to make it easier for you to increase performance if you so desire.
It would be of interest to know specifically, which diagnostic functions are removed or turned off in the PCM for the Stage I and Stage II kits. Facts would be easier to digest than conjecture.
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Old 18 Nov 2003, 02:56 pm
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The graphics are missing, but this is a snapshot of the Telemetry OBD monitoring readings.

Diagnostic Measurements as of 11/17/03 09:58 PM

MIL Light (OBDII Data) off
Ignition Timing Advance (ATDC) (OBDII Data) 6 deg
Battery (on) 14.2 V
Battery (off) 12.5 V
Calculated Load Value (OBDII Data) 4.7 %
Engine Speed (OBDII Data) 766 RPM
Engine Coolant Temp. (OBDII Data) 199 degF
Intake Air Temp. (OBDII Data) 77 degF
Abs. Throttle Position Sensor (OBDII Data) 14.9 %
Short Term Fuel Trim, Bank 1 (OBDII Data) 1.6 %
Long Term Fuel Trim, Bank 1 (OBDII Data) -4.7 %
Fuel System Status/B1 (OBDII Data) closed
Intake Manifold Abs. Pressure (OBDII Data) 41 KPa
Oxygen Sensor Location (OBDII Data) B1S1 B1S2
Bank 1 Sensor 1 Fuel Trim (OBDII Data) 0.8 %
Bank 1 Sensor 1 Voltage (OBDII Data) 0.605 V
Bank 1 Sensor 2 Fuel Trim (OBDII Data) 100.0 %
Bank 1 Sensor 2 Voltage (OBDII Data) 0.075 V
OBD system type (OBDII Data) 3
Keyon time 945 sec
Run time 1378399 sec
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Old 18 Nov 2003, 09:47 pm
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Join Date: Jul 2003
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All those will show up fine, except maybe downstream oxygen sensor (bank 1 sensor 2). And I stress maybe. The fuel trim of 100% doesn't seem right, it should be less than the upstream value (0.075 volts versus 0.605) - so maybe that telemetry thing is already giving out faulty info.

The one OBD monitor that I know is shut off with Staged kits is the P1188 code (part throttle TIP overboost). This keeps us from getting the EO number. Trying to find out what else is shut off, if anything.
PT GT - Fastest damn lease car I could hope to have...
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Old 18 Nov 2003, 11:00 pm
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Posts: 999

This is the California list (all that the state will ever require of my PT for as long as I own it), so maybe we can squeek through anyway. Thanks for all your help!
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