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Started with the check engine light staying on - even when the key was out.
To the point where the battery drained overnight - regardless if CEL was on or off.
First, I was focused on resolving the CEL - but I have no fault codes now.
Am trying to pinpoint the battery drain, but am confused about the C and 9 combination.
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1991 300E 124.030 103.983KE 722358 03 412178
207K
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