Evo ECU
If you're trying to clear codes in the ECU the battery trick might not work! The ECU keeps some memory until the items are cleared by a scanning tool or if certain parameters are meet.
Example: If you have a check engine light due to a smog related issue, pulling the battery cable may clear the check engine light but a smog station will see the error code as soon as they plug their obd scanner in. If you pull the battery cable and drive the car under certain conditions and parameters and the car doesn't cause the check engine light to come back on...the ECU will automatically erase the error code, unless of course the car triggers it again.
Andrew
Example: If you have a check engine light due to a smog related issue, pulling the battery cable may clear the check engine light but a smog station will see the error code as soon as they plug their obd scanner in. If you pull the battery cable and drive the car under certain conditions and parameters and the car doesn't cause the check engine light to come back on...the ECU will automatically erase the error code, unless of course the car triggers it again.
Andrew
If you're trying to clear codes in the ECU the battery trick might not work! The ECU keeps some memory until the items are cleared by a scanning tool or if certain parameters are meet.
Example: If you have a check engine light due to a smog related issue, pulling the battery cable may clear the check engine light but a smog station will see the error code as soon as they plug their obd scanner in. If you pull the battery cable and drive the car under certain conditions and parameters and the car doesn't cause the check engine light to come back on...the ECU will automatically erase the error code, unless of course the car triggers it again.
Andrew
Example: If you have a check engine light due to a smog related issue, pulling the battery cable may clear the check engine light but a smog station will see the error code as soon as they plug their obd scanner in. If you pull the battery cable and drive the car under certain conditions and parameters and the car doesn't cause the check engine light to come back on...the ECU will automatically erase the error code, unless of course the car triggers it again.
Andrew
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