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ECU Reset - How long by disconnecting battery?

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Old 18 March 2000, 11:21 PM
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James Neill
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If I wanted to reset the ECU (and don't have the electronic equipment) the FAQ says diconnecting the battery might work. How long will it take for the backup capacitor in the ECU to drain and the ECU reset. 1 min, 5 min, 1 hour, 12 hours, ..... ?
Old 19 March 2000, 12:39 AM
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MTR
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MTR

[This message has been edited by MTR (edited 17 September 2000).]
Old 19 March 2000, 01:30 AM
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NYRS
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I know that on my US model Impreza RS which is N/A, I have to disconnect the battery for 15 minutes, then reconnect and start the car with all accessories off and let it idle for 15 minutes w/o touching the throttle and the my ECU is reset. It may be different on your models though.
Old 19 March 2000, 08:51 AM
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Bob Rawle
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I leave it disconnected for 20-30 mins

Bob
Old 19 March 2000, 09:39 AM
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MTR
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MTR

[This message has been edited by MTR (edited 17 September 2000).]
Old 19 March 2000, 11:58 AM
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James Neill
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MTR - Followed instructions exactly and the check engine light did its business (ie, flashed every half second or so)

Did not notice any difference, may be a little smoother after I took her out for a little run.

Oh well
Old 19 March 2000, 02:01 PM
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James Neill
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Maybe I'll run on super a little while longer and try the reset again

Internet address - it was the full stop on the end that it didn't like. The page is working if you take it off.
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