Results 1 to 6 of 6

Thread: Wheel speed sensor errors?

  1. #1
    Advanced Tuner Fox95's Avatar
    Join Date
    Aug 2006
    Posts
    294

    Wheel speed sensor errors?

    Im getting front wheel speed sensor errors on this vehicle for some reason.

    when I drive it with a scanner that will monitor all 4 wheel speed sensors, they all show the same speeds and don't ever seem to drop out.

    but I am getting codes:

    [PCM] P0101 - Mass Air Flow (MAF) Sensor Performance (Old) (History) (Immature)
    [PCM] P0300 - Engine Misfire Detected (Old) (Immature)
    [Brake] C1221 - LF Wheel Speed Sensor Input Signal is 0 (History)
    [Brake] C1222 - RF Wheel Speed Sensor Input Signal is 0 (History)
    [Brake] C1248 - EBCM Turned the Red Brake Warning Indicator On (History)
    [Brake] C1278 - TCS Temporarily Inhibited By PCM (History)
    [Brake] C1293 - Code C1291 Set in Previous Ignition Cycle (History)
    [Restraints] U1096 - Loss of Communications with IPC (History) (Immature)
    [Restraints] U1000 - Class 2 Communication Malfunction (History) (Immature)
    [Restraints] U1016 - Loss of Class 2 Communication with VCM (History) (Immature)
    [HVAC] B0363 - (History) (Immature)
    [HVAC] B0441 - (History) (Current) (Immature)
    [Convenience] B2282 - (History) (Immature)
    [Convenience] B2284 - (History) (Immature)
    [Convenience] B2286 - (History) (Immature)
    [Convenience] U1016 - Loss of Class 2 Communication with VCM (History) (Immature)
    [Convenience] U1096 - Loss of Communications with IPC (History) (Immature)
    [Convenience] B2287 - (History) (Immature)
    [Convenience] B2283 - (History) (Immature)
    [Convenience] U1016 - Loss of Class 2 Communication with VCM (History) (Immature)
    [Convenience] B2285 - (History) (Immature)
    [Convenience] U1096 - Loss of Communications with IPC (History) (Immature)
    [Convenience] U1096 - Loss of Communications with IPC (History) (Immature)

    Any ideas on this?

    thanks
    Attached Files Attached Files
    Last edited by Fox95; 10-27-2008 at 05:19 PM.
    www.foxperformanceengines.com

    Custom SCT, Diablo, and HPtuners tuning on a Superflow AD 30

    Location: Colorado Springs, CO.

    Contact: (719) 570-9595

  2. #2
    Tuner Street Legal's Avatar
    Join Date
    Mar 2007
    Location
    Houston, TX
    Posts
    162
    Quote Originally Posted by Fox95 View Post
    Im getting front wheel speed sensor errors on this vehicle for some reason.

    when I drive it with a scanner that will monitor all 4 wheel speed sensors, they all show the same speeds and don't ever seem to drop out.

    but I am getting codes:

    [PCM] P0101 - Mass Air Flow (MAF) Sensor Performance (Old) (History) (Immature)
    [PCM] P0300 - Engine Misfire Detected (Old) (Immature)
    [Brake] C1221 - LF Wheel Speed Sensor Input Signal is 0 (History)
    [Brake] C1222 - RF Wheel Speed Sensor Input Signal is 0 (History)
    [Brake] C1248 - EBCM Turned the Red Brake Warning Indicator On (History)
    [Brake] C1278 - TCS Temporarily Inhibited By PCM (History)
    [Brake] C1293 - Code C1291 Set in Previous Ignition Cycle (History)
    [Restraints] U1096 - Loss of Communications with IPC (History) (Immature)
    [Restraints] U1000 - Class 2 Communication Malfunction (History) (Immature)
    [Restraints] U1016 - Loss of Class 2 Communication with VCM (History) (Immature)
    [HVAC] B0363 - (History) (Immature)
    [HVAC] B0441 - (History) (Current) (Immature)
    [Convenience] B2282 - (History) (Immature)
    [Convenience] B2284 - (History) (Immature)
    [Convenience] B2286 - (History) (Immature)
    [Convenience] U1016 - Loss of Class 2 Communication with VCM (History) (Immature)
    [Convenience] U1096 - Loss of Communications with IPC (History) (Immature)
    [Convenience] B2287 - (History) (Immature)
    [Convenience] B2283 - (History) (Immature)
    [Convenience] U1016 - Loss of Class 2 Communication with VCM (History) (Immature)
    [Convenience] B2285 - (History) (Immature)
    [Convenience] U1096 - Loss of Communications with IPC (History) (Immature)
    [Convenience] U1096 - Loss of Communications with IPC (History) (Immature)

    Any ideas on this?

    thanks

    is the ABS light on ?

    if no, just ignore the codes from the other modules..only take the PCM codes

  3. #3
    Advanced Tuner Fox95's Avatar
    Join Date
    Aug 2006
    Posts
    294
    no abs light...

    am i chasing something that isn't a problem?
    www.foxperformanceengines.com

    Custom SCT, Diablo, and HPtuners tuning on a Superflow AD 30

    Location: Colorado Springs, CO.

    Contact: (719) 570-9595

  4. #4
    Tuner Street Legal's Avatar
    Join Date
    Mar 2007
    Location
    Houston, TX
    Posts
    162
    Quote Originally Posted by Fox95 View Post
    no abs light...

    am i chasing something that isn't a problem?
    yes ignore the codes from the other modules.

    PCM codes are what you want to chase lol

  5. #5
    Advanced Tuner Fox95's Avatar
    Join Date
    Aug 2006
    Posts
    294
    thanks....The ses light was tripping, but I see now it was only from p101 code and not the wheel speed stuff. I corrected the p101 table so it doesn't set that light so, no ses now....customers happy....im happy...everybody's happy....


    While were on this topic. Is there a way to set up a histogram for the P101 table? I see you can for p106 map sensor tables, but not the p101 airflow delta table.

    In the p101 airflowdelta table, it's left column"airflow delta" and top row"G/sec", what are the values in the table? Map values? or g/cyl? where does that number come from and is there a good way or deriving those numbers instead of just multiplying them by 30% -50% as i see most people doing so 101 doesn't set...
    www.foxperformanceengines.com

    Custom SCT, Diablo, and HPtuners tuning on a Superflow AD 30

    Location: Colorado Springs, CO.

    Contact: (719) 570-9595

  6. #6
    Супер Модератор EC_Tune's Avatar
    Join Date
    Apr 2003
    Location
    Almost 2000 feet.
    Posts
    7,880
    You will need to make a custom PID that subtracts MAF airflow from Dynamic airflow and then make a histogram to fit.
    Always Support Our Troops!