v3hardreset
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v3hardreset [2009/05/26 16:11] dmertz |
v3hardreset [2024/03/15 11:16] |
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| - | ====== V3 Hard Reset ====== | ||
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| - | In some rare situations, it may be necessary to do a hard reset of your V3 flash device (reset back to original defaults). The following describes how to do that. | ||
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| - | - Turn the ignition on (don't start the engine) | ||
| - | - Wait for the CEL light to go back off after a few seconds just as a check that the ECU is up and running normally. | ||
| - | - Press the throttle to the floor and keep it there as you cycle the ignition key off and then back on 3 or 4 times. I usually go for 4 but 3 is the minimum. Pause for just a moment between on/off switches (about a 0.5-second pause, but not more than 1.5 seconds). | ||
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| - | Once you have done that, the ECU should reset back to the hard coded defaults in the chip. | ||
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| - | Additional notes: | ||
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| - | - The vehicle speed must be zero. | ||
| - | - ThrotPos must exceed 72%. (Verify by logging.) | ||
| - | - Beginning with the ignition on but the engine not running, the minimum sequence is: turn the key off (first time) for 1/2 second, on for 1/2 second, off (second time) for 1/2 second, on for 1/2 second, off (third time) for 1/2 second, then on and leave on. (The speed of the off-on should be about like a clock going tick-tock or a bit faster. Failure to reset usually is caused by toggling the key too slowly.) | ||
| - | - If you initiate logging prior to performing the reset sequence, the logging will halt (the seconds counter will stop updating) the instant the reset happens. | ||
v3hardreset.txt ยท Last modified: 2024/03/15 11:16 (external edit)
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