Author Topic: MAL codes with FAST XFI are different?  (Read 3320 times)

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Offline gordyzx9r

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MAL codes with FAST XFI are different?
« on: June 11 2017, 06:10:46 PM »
I was at a car event last night and when I started the car, it stumbled and died.  I didn't turn the key off, I just started it again and I had a check engine light with a code 22.  I went to my mal card and it said TPS Low Signal Voltage.  Readings seemed normal though.

Got home, shutoff car, went to do some research...cam e back, started car and no mal code or check engine light.

Then this morning, I check the Scanmaster 3 manual and the codes are different?  It says a code 22 is ATS Bias error.

http://www.turbobuick.com/threads/scanmaster-3-manual.439091/

Is that right?  What does that mean?

I don't even see that type of mal code in the original system:

http://www.gnttype.org/maint/malf.html




Offline gordyzx9r

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Re: MAL codes with FAST XFI are different?
« Reply #1 on: June 11 2017, 06:32:21 PM »
I really need to take a couple weeks off to get educated...I had no idea all this changed with FAST XFI:

What the heck does this mean!?!  "Programmed sensor bias voltage out of tolerance"

27.3.3 Fault Codes
To determine what fault code(s) have been set, observe the “Error Code” and “ErrorCode 2” channels.  They will display a numeric code which can be used to look up what fault has occurred.  The possible faults are listed here.
Error Code 1:
 
           1: CTS Fault 
           2: ATS Fault
           4: MAP Fault
           8: TPS Fault
         16: Wideband Fault
         32: Ign. Voltage Fault
         64: Overboost Fault
        128: IAC Fault
 
 Error Code 2:
 
           1: CTS Bias Error
           2: ATS Bias Error
           4: Fuel Composition Sensor Fault
           8: Injector Duty Cycle Fault
         16: Fuel Pressure Sensor Fault (AAUX1)
         32: Oil Pressure Sensor Fault (AAUX2)
         64: Cam Sync Position Error
        128: Crank Sync Position Error

If the “Error Code” channel has a value of 4, it means a MAP Fault has occurred.  Or if “ErrorCode 2” has a value of 64, a Cam Sync Position Error has occurred.  If more than a single fault code has been set, the value of the error code channels will be the sum of the individual fault code numbers.  When this happens, there is a simple way to determine which faults have occurred.  Determine the largest single fault code that fits into the displayed error code number.  That will be one of the fault codes that have been set. Subtract that number and again look for the largest single fault code that fits into the remaining error code number.


For example, assume “Error Code” = 37.  37 does not match up with any single fault code.  The largest single fault code that fits into 37 would be 32.  So 32 would be the first fault code.  37-32 leaves 5.   Again, 5 does not does not match up with any single fault code.  In this case, the largest single fault code that fits into 5 would be 4.  So 4 would be the second fault code.  5-4 leaves 1.  1 does match up with a single fault code, so it is the third fault code.   So in this example, there has been an Ign. Voltage fault, a MAP fault and a CTS fault.

Error Code Definitions:

CTS Fault
Coolant temperature sensor measurement approaching or at range limit
[size=0pt]If a CTS fault code is set, the ECU takes the following actions to protect the engine.[/size]
 
  • Fan output is switched on
  • Target idle speed is forced to 1000 RPM
  • EGR function disabled
  • CTS based fuel correction zeroed out
ATS Fault
Air temperature sensor measurement approaching or at range limit
[size=0pt]If an ATS fault code is set, the ECU takes the following actions to protect the engine.[/size]
 
  • In Speed Density mode, fueling calculations performed based on an air temperature of 59 *F
  • EGR function disabled
  • ATS based fuel correction zeroed out
  • ATS based spark timing correction zeroed out

 MAP Fault
Raw MAP measurement approaching or at range limit
 -and-
 TPS (%) > “Max. TPS for Idle (%)” parameter
 
TPS Fault
Raw throttle position sensor measurement approaching or at range limit

 Wideband Fault
Engine RPM > 2000
 -and-
 Engine run > 10 seconds
 -and-
 WBO2 not connected (UEGOR > 4.90V)
 -or-
 WBO2 Shorted (UEGOR < 0.098V)
 -or-
 WBO2 not lit off (UEGOS > .07056V)
 -or-
 WBO2 malfunction (UEGOS < 0.196V)

 Ign. Voltage Fault
Measured Ignition Voltage > 19.0V
 -or-
 Measured Ignition Voltage < 7.0V

 Overboost Fault
 MAP(kPa) > Overboost Fault Limit (kPa)

IAC Fault
 IAC wiring shorted to ground
-or-
IAC wiring shorted to power
-or-
IAC controller overheated
Check the IAC Status channel for more detail.

 CTS Bias Error
Programmed sensor bias voltage out of tolerance
 
 ATS Bias Error
Programmed sensor bias voltage out of tolerance
Fuel Composition Sensor Fault
Sensor enabled but not detected or malfunctioning .
Injector Duty Cycle Fault
[/color]Duty Cycle at or exceeded 100%
Fuel Pressure Sensor Fault
[/color]Fuel pressure correction enabled and raw fuel pressure sensor measurement approaching or at range limit.
Oil Pressure Sensor Fault
[/color]Oil pressure engine cut enabled and raw oil pressure sensor measurement approaching or at range limit.

 Cam Sync Position Error
Cam Sync occurred at an unexpected angle
 -or-
 Cam Sync failed to occur when expected

 Crank Sync Position Error
Crank Sync occurred at an unexpected angle
 -or-
 Crank Sync failed to occur when expected

 

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