Skyline ECU Reset..
Skyline ECU Reset..
Before you start....!!
Make sure the front wheels are straight when you do this or else the Hicas 4 wheel steering system can get a bit screwed up because it thinks the wheels are turning slightly!
You can reset the ECU by disconnecting the battery and then pressing the brake pedal in for a couple of minutes, doing this tries to light up the brake lights and removes all of the voltage from the ECU, Or you can disconnect the battery and leave over night to clear the ECU memory, some people recommend leaving it for 24hrs, so the brake pedal method is probably a lot easier?
Then connect it back up and go for a drive. :thumbup1:
The ECU has the mapping for the fuelling this will change accordingly, the timing and airflow is monitored all of the time and adjusted according to conditions,
If you have been using low octane fuel or carried out recent mods then you'll benefit from the ECU reset as it relearns the optimum settings and changes the timing in very large increments initially, then as it gets closer to being right it narrows the adjustments down.
The ignition timing is advanced until knock is detected and then pulled back in narrowing swings above and below ideal until it has narrowed it down to being OK. Once settled it almost stops learning and will use tiny adjustments each time you go out and take a lot longer to get to its ideal each time.
After re-setting the ecu go for a steady drive and not thrash it, the ECU will go through a learning mode.
.
Lexus IS200 Sport Navigator (Now being stripped again) :blink:
Now Don't Forget The REP!!!
ECU Re-set
Before you start....!!
Make sure the front wheels are straight when you do this or else the Hicas 4 wheel steering system can get a bit screwed up because it thinks the wheels are turning slightly!
You can reset the ECU by disconnecting the battery and then pressing the brake pedal in for a couple of minutes, doing this tries to light up the brake lights and removes all of the voltage from the ECU, Or you can disconnect the battery and leave over night to clear the ECU memory, some people recommend leaving it for 24hrs, so the brake pedal method is probably a lot easier?
Then connect it back up and go for a drive. :thumbup1:
The ECU has the mapping for the fuelling this will change accordingly, the timing and airflow is monitored all of the time and adjusted according to conditions,
If you have been using low octane fuel or carried out recent mods then you'll benefit from the ECU reset as it relearns the optimum settings and changes the timing in very large increments initially, then as it gets closer to being right it narrows the adjustments down.
The ignition timing is advanced until knock is detected and then pulled back in narrowing swings above and below ideal until it has narrowed it down to being OK. Once settled it almost stops learning and will use tiny adjustments each time you go out and take a lot longer to get to its ideal each time.
After re-setting the ecu go for a steady drive and not thrash it, the ECU will go through a learning mode.
.
Lexus IS200 Sport Navigator (Now being stripped again) :blink:
Now Don't Forget The REP!!!
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