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Old 02-07-2006, 04:56 PM   #1
Scooby Specialist
Member#: 58352
Join Date: Mar 2004
Chapter/Region: MAIC
04 20G STI(SOLD)
08 z51C6 (growing mullet)

Default how to read historical cels

I reset my ecu with my accessport and cleared a code....is there any scantool that can read this "historical" cel?
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Old 02-07-2006, 06:19 PM   #2
Scooby Specialist
Member#: 27108
Join Date: Oct 2002
Chapter/Region: MWSOC
Location: Detroit-ish, MI
2004 STi
2004 A4


"Historical" means that the CEL went away (the light went off), but the ECU wasn't reset.

Resetting the ECU clears all CELs and learned information (e.g. fuel trims).
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