v3settingsreverttodefaults
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v3settingsreverttodefaults [2011/03/23 06:34] twdorris |
v3settingsreverttodefaults [2011/05/16 08:25] twdorris |
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| ====== V3 Settings Operation ====== | ====== V3 Settings Operation ====== | ||
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| ===== Overview ===== | ===== Overview ===== | ||
| - | Every once in a while, someone will have their most recent set of configuration changes lost in ECMLink and they'll ask how this can happen. It's a good question, but the answer isn't straight forward because ECMLink was designed to retain settings even when battery power is disconnected for years. So when settings are lost, it's because something in the car isn't working as it should be. And to figure out what that might be, you need to understand a few things about ECMLink's internal design. | + | Every once in a while, someone will have their most recent set of configuration changes lost in ECMLink and they'll ask how this can happen. It's a good question, but the answer isn't straight forward because ECMLink was designed to retain settings even when battery power is disconnected for years. |
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| + | So when settings are lost, it's because something in the car isn't working as it should be. And to figure out what that might be, you need to understand a few things about ECMLink's internal design. | ||
| First, there are two "areas" of ECMLink settings: **ECU Config** and **Direct Access** | First, there are two "areas" of ECMLink settings: **ECU Config** and **Direct Access** | ||
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| ===== ECU Config ===== | ===== ECU Config ===== | ||
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| Your only solution in this case is to either (1) get a working MFI relay set up back in the car (preferred) or (2) always go into **Direct Access** and make some trivial change to a setting there and hit **Save to ECU** before you turn the ignition key off. | Your only solution in this case is to either (1) get a working MFI relay set up back in the car (preferred) or (2) always go into **Direct Access** and make some trivial change to a setting there and hit **Save to ECU** before you turn the ignition key off. | ||
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| ==== Low battery voltage while cranking ==== | ==== Low battery voltage while cranking ==== | ||
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| - Customer hits **Save to ECU** and then tries to start the engine to test these new settings. | - Customer hits **Save to ECU** and then tries to start the engine to test these new settings. | ||
| - Battery voltage drops too low while cranking and forces the ECU to reset. | - Battery voltage drops too low while cranking and forces the ECU to reset. | ||
| - | - ECU Config settings are lost and ECU powers back up with previous settings. | + | - **ECU Config** settings are lost and ECU powers back up with previous settings. |
| + | \\ | ||
| The ECU reset occurs so fast that you don't even really notice it. The only indication you'll have is that the check engine light will come on for 5 seconds like it normally would when the ignition key is first turned on. So watch for this as your clue that something is wrong while you're cranking the engine. If you see your check engine light suddenly come back on, then that's a problem. | The ECU reset occurs so fast that you don't even really notice it. The only indication you'll have is that the check engine light will come on for 5 seconds like it normally would when the ignition key is first turned on. So watch for this as your clue that something is wrong while you're cranking the engine. If you see your check engine light suddenly come back on, then that's a problem. | ||
v3settingsreverttodefaults.txt · Last modified: 2024/03/15 11:16 (external edit)
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