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  1. #1
    Carb and Points!
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    Quote Originally Posted by trlrider View Post
    No,I doubt he could brick it, especially since he did not follow instructions and get to the point he could unlock the ecm/pscm. Pete designed fail safes into the program to prevent that from happening. About the only way it could be bricked during a write would be a serious voltage spike.
    It is obvious from his second image that he is trying to write the ecm in the vehicle and not on a bench harness, thus the error with the bus collision.
    I got this exact error tonight. I had the charger on my battery the first time and showed 13.10 VDC.
    I posted on LS Droid FB group and they blamed voltage, so I tried it while jumped off a running vehicle at 14.50 VDC.
    All I know now is that it fails to write every time.

  2. #2
    Fuel Injected! trlrider's Avatar
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    Quote Originally Posted by Paraquat View Post
    I got this exact error tonight. I had the charger on my battery the first time and showed 13.10 VDC.
    I posted on LS Droid FB group and they blamed voltage, so I tried it while jumped off a running vehicle at 14.50 VDC.
    All I know now is that it fails to write every time.
    Programming/Flashing anything requires a clean and consistent power source. Using a car charger or another vehicle does not server that purpose.
    A car charger is just that, a charger and the charge is not filtered to eliminate ripples and other issues.
    Using another vehicle is also not a clean power supply. A simple non-filtered led lamp in the second vehicle can cause enough interference in the can bus of the vehicle to stop the programing/flashing from completing properly.
    Had a similar issue a couple of weeks ago when doing some testing. Realized the LED light string was on the cabinets on my work bench. Turned them off and the problem went away.
    If you have access to a scope or even a frequency counter, take a look at the ripples from your standard car charger or even a non-filtered LED light. Had a customers Kenworth come in last month that had someone install a bunch of LED lighting. Ever time he turned the lights on the unit would start mis-firing! The cause was rf interference from the lights to the ECM.

    Many have found the Belker 45w Universal power supply works great for bench harnesses and can be found as low as $12.00. Not sure if I can post a link to purchase
    on the forum, message me if you would like the info! Tested this unit on a swap vehicle (stand alone, no other electronics except the PCM) last weekend as a power booster and it worked great, keeping the battery voltage in the vehicle at a constant 13.2 volts with no power ripples. We just did this as a test to measure voltages. On that vehicle the PCM/ECM is located such it takes less then a minute to pull it and put it on the bench harness.
    Jack of all trades, absolutely master of none! Too many projects, not enough time and limited funds.
    Geronimo, Guadalupe County, Texas
    1993 K1500 Suburban - SBC Refit retraining the TBI and Computer Control.
    2004 Z66 Avalanche 5;3 to 6.0 LQ9 upgrade - project pending

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