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Thread: LS2 E40 VATS delete?

  1. #1
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    Default LS2 E40 VATS delete?

    I transplanted the LS2 into a 1993 Mazda RX7 so lots of stuff is missing (VATS, ABS, BCM, etc).

    The engine wont start. I get fuel pressure, the throttle works, and I can communicate with the PCM.

    I have tried to delete VATS, but the ECM still throws a code saying its getting the wrong anti theft signal. Any ideas?

    I "deleted" VATS by changing values in tables G1204, G1206, G1208, G1208, G1209, G1210, G1211, G1214, G1215, and applying the VATS patch (B9903). Did I miss anything?

    Thanks,
    Chris

  2. #2
    Lifetime Member GMPX's Avatar
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    Just so you didn't miss something here is the exact steps.
    1. Apply VATS patch.
    2. Change G1204 to No
    3. Change VATS type (G1210) to Type3.
    4. Save file, FULL flash ECM.
    This is known to work on several conversions, can you please confirm you have done that, if not, please retry doing those steps.

    Cheers,
    Ross
    I no longer monitor the forum, please either post your question or create a support ticket.

  3. #3
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    I did exactly that. No luck. I also checked and its definitely not sparking. Here are the codes and tables I have:

    P0443 Evaporative Emission (EVAP) Purge Solenoid Control Circuit
    P0449 Evaporative Emission (EVAP) Vent Solenoid Control Circuit
    P0452 Fuel Tank Pressure (FTP) Sensor Circuit Low Voltage
    P0463 Fuel Level Sensor 1 Circuit High Voltage
    P0443 Evaporative Emission (EVAP) Purge Solenoid Control Circuit
    P0449 Evaporative Emission (EVAP) Vent Solenoid Control Circuit
    P0452 Fuel Tank Pressure (FTP) Sensor Circuit Low Voltage
    P0463 Fuel Level Sensor 1 Circuit High Voltage
    P0443 Evaporative Emission (EVAP) Purge Solenoid Control Circuit
    P0449 Evaporative Emission (EVAP) Vent Solenoid Control Circuit
    P0452 Fuel Tank Pressure (FTP) Sensor Circuit Low Voltage
    P0463 Fuel Level Sensor 1 Circuit High Voltage
    P0532 Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit Low Voltage
    P1629 Theft Deterrent Start Enable Signal Not Received
    U0121 Lost Communication With Anti-Lock Brake System (ABS) Control Module


    LABELS Disable VATS Patch
    Parameters Value
    {B9901} MAF Error Patch Applied
    {B9902} Traction Control Patch Not Applied
    {B9903} Disable VATS Patch Applied


    LABELS VATS Enable
    Parameters Value
    {G1204} VATS Enable No
    {G1206} VATS Required To Run Yes
    {G1208} VATS Fail Diagnostic Disable
    {G1209} VATS Mode No
    {G1210} VATS Type Type 3
    {G1211} Remote Start Allowed No
    {G1214} Relearn Count 3 Counts
    {G1215} Relearn Timer 10 Seconds


    Looks like the P1629 is the cause. Let me know what to do.

    Thanks,
    Chris

  4. #4
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    A friend thinks it may be an unplugged crank position sensor. Would that be possible without the PCM throwing a code?

  5. #5
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    I checked, both the crank and cam position sensors are plugged in and I drove the GTO before I pulled the motor so I know the sensors work.

    Wouldnt the PCM throw a code if either of those sensors didnt work or were unplugged?

  6. #6
    Joe (Moderator) joecar's Avatar
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    If the scantool shows RPM while cranking, the the CKP sensor is fine;

    scantool should have CMP sensor PID(s) which you use to see if there's can pulses while cranking.

    I think the PCM throws codes if either is open circuited, I'll have to check.

    Sounds like you have a anti threft problem (P1629).

  7. #7
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    Quote Originally Posted by joecar
    If the scantool shows RPM while cranking, the the CKP sensor is fine;

    scantool should have CMP sensor PID(s) which you use to see if there's can pulses while cranking.

    I think the PCM throws codes if either is open circuited, I'll have to check.

    Sounds like you have a anti threft problem (P1629).
    I will check the RPMs during cranking when I get home.

    I also think its VATS, but someone said that it only disables fuel not spark (at least on the older LS1s)

  8. #8
    Joe (Moderator) joecar's Avatar
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    Yes, VATS disables fuel; but you should still get spark.

    You probably should check both of these nonetheless.

  9. #9
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    Nope, Im a jackass Or GM is, either way works.

    In the GTO they ran the power for the ignitors through a connector up by the MAF. I didnt look the GTO over thoroughly and I just dismissed that connector as fog lights or something useless up in the front bumper.

    I dont have the Helms manual (yea, Im impressed Ive made it this far without it) so if anyone knows the pinout of that connector let me know. Its a 6 pin with 5 wires:

    Red - 12V switched
    Light Green - 12V switched
    Dark Green
    Pink/blue
    Black/red

    Anyone know what the other three wires connect to? (they all trace to one/both of the ignitor connectors)

  10. #10
    Joe (Moderator) joecar's Avatar
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    I can't get my 2005 SPO eSI ("GM service manual") working;

    I got the 2003 version working, but that doesn't have GTO.

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